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#
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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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#
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# This code is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 2 only, as
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# published by the Free Software Foundation. Oracle designates this
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# particular file as subject to the "Classpath" exception as provided
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# by Oracle in the LICENSE file that accompanied this code.
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#
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# This code is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# version 2 for more details (a copy is included in the LICENSE file that
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# accompanied this code).
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#
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# You should have received a copy of the GNU General Public License version
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# 2 along with this work; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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# or visit www.oracle.com if you need additional information or have any
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# questions.
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#
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# <pre>
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# This file is in the public domain, so clarified as of
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# 2009-05-17 by Arthur David Olson.
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# also includes Central America and the Caribbean
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# This data is by no means authoritative; if you think you know better,
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# go ahead and edit the file (and please send any changes to
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# tz@iana.org for general use in the future).
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# From Paul Eggert (1999-03-22):
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# A reliable and entertaining source about time zones is
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# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
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###############################################################################
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# United States
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# From Paul Eggert (1999-03-31):
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# Howse writes (pp 121-125) that time zones were invented by
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# Professor Charles Ferdinand Dowd (1825-1904),
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# Principal of Temple Grove Ladies' Seminary (Saratoga Springs, NY).
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# His pamphlet "A System of National Time for Railroads" (1870)
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# was the result of his proposals at the Convention of Railroad Trunk Lines
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# in New York City (1869-10). His 1870 proposal was based on Washington, DC,
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# but in 1872-05 he moved the proposed origin to Greenwich.
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# His proposal was adopted by the railroads on 1883-11-18 at 12:00,
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# and the most of the country soon followed suit.
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# From Paul Eggert (2005-04-16):
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# That 1883 transition occurred at 12:00 new time, not at 12:00 old time.
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# See p 46 of David Prerau, Seize the daylight, Thunder's Mouth Press (2005).
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# From Paul Eggert (2006-03-22):
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# A good source for time zone historical data in the US is
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# Thomas G. Shanks, The American Atlas (5th edition),
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# San Diego: ACS Publications, Inc. (1991).
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# Make sure you have the errata sheet; the book is somewhat useless without it.
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# It is the source for most of the pre-1991 US entries below.
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# From Paul Eggert (2001-03-06):
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# Daylight Saving Time was first suggested as a joke by Benjamin Franklin
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# in his whimsical essay "An Economical Project for Diminishing the Cost
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# of Light" published in the Journal de Paris (1784-04-26).
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# Not everyone is happy with the results:
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#
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# I don't really care how time is reckoned so long as there is some
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# agreement about it, but I object to being told that I am saving
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# daylight when my reason tells me that I am doing nothing of the kind.
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# I even object to the implication that I am wasting something
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# valuable if I stay in bed after the sun has risen. As an admirer
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# of moonlight I resent the bossy insistence of those who want to
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# reduce my time for enjoying it. At the back of the Daylight Saving
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# scheme I detect the bony, blue-fingered hand of Puritanism, eager
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# to push people into bed earlier, and get them up earlier, to make
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# them healthy, wealthy and wise in spite of themselves.
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#
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# -- Robertson Davies, The diary of Samuel Marchbanks,
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# Clarke, Irwin (1947), XIX, Sunday
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#
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# For more about the first ten years of DST in the United States, see
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# Robert Garland's <a href="http://www.clpgh.org/exhibit/dst.html">
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# Ten years of daylight saving from the Pittsburgh standpoint
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# (Carnegie Library of Pittsburgh, 1927)</a>.
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#
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# Shanks says that DST was called "War Time" in the US in 1918 and 1919.
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# However, DST was imposed by the Standard Time Act of 1918, which
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# was the first nationwide legal time standard, and apparently
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# time was just called "Standard Time" or "Daylight Saving Time".
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# From Arthur David Olson:
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# US Daylight Saving Time ended on the last Sunday of *October* in 1974.
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# See, for example, the front page of the Saturday, 1974-10-26
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# and Sunday, 1974-10-27 editions of the Washington Post.
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# From Arthur David Olson:
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# Before the Uniform Time Act of 1966 took effect in 1967, observance of
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# Daylight Saving Time in the US was by local option, except during wartime.
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# From Arthur David Olson (2000-09-25):
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# Last night I heard part of a rebroadcast of a 1945 Arch Oboler radio drama.
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# In the introduction, Oboler spoke of "Eastern Peace Time."
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# An AltaVista search turned up
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# <a href="http://rowayton.org/rhs/hstaug45.html">:
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# "When the time is announced over the radio now, it is 'Eastern Peace
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# Time' instead of the old familiar 'Eastern War Time.' Peace is wonderful."
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# </a> (August 1945) by way of confirmation.
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# From Joseph Gallant citing
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# George H. Douglas, _The Early Days of Radio Broadcasting_ (1987):
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# At 7 P.M. (Eastern War Time) [on 1945-08-14], the networks were set
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# to switch to London for Attlee's address, but the American people
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# never got to hear his speech live. According to one press account,
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# CBS' Bob Trout was first to announce the word of Japan's surrender,
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# but a few seconds later, NBC, ABC and Mutual also flashed the word
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# of surrender, all of whom interrupting the bells of Big Ben in
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# London which were to precede Mr. Attlee's speech.
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# From Paul Eggert (2003-02-09): It was Robert St John, not Bob Trout. From
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# Myrna Oliver's obituary of St John on page B16 of today's Los Angeles Times:
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#
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# ... a war-weary U.S. clung to radios, awaiting word of Japan's surrender.
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# Any announcement from Asia would reach St. John's New York newsroom on a
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# wire service teletype machine, which had prescribed signals for major news.
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# Associated Press, for example, would ring five bells before spewing out
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# typed copy of an important story, and 10 bells for news "of transcendental
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# importance."
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#
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# On Aug. 14, stalling while talking steadily into the NBC networks' open
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# microphone, St. John heard five bells and waited only to hear a sixth bell,
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# before announcing confidently: "Ladies and gentlemen, World War II is over.
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# The Japanese have agreed to our surrender terms."
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#
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# He had scored a 20-second scoop on other broadcasters.
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# From Arthur David Olson (2005-08-22):
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# Paul has been careful to use the "US" rules only in those locations
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# that are part of the United States; this reflects the real scope of
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# U.S. government action. So even though the "US" rules have changed
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# in the latest release, other countries won't be affected.
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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Rule US 1918 1919 - Mar lastSun 2:00 1:00 D
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Rule US 1918 1919 - Oct lastSun 2:00 0 S
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Rule US 1942 only - Feb 9 2:00 1:00 W # War
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Rule US 1945 only - Aug 14 23:00u 1:00 P # Peace
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Rule US 1945 only - Sep 30 2:00 0 S
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Rule US 1967 2006 - Oct lastSun 2:00 0 S
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Rule US 1967 1973 - Apr lastSun 2:00 1:00 D
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Rule US 1974 only - Jan 6 2:00 1:00 D
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Rule US 1975 only - Feb 23 2:00 1:00 D
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Rule US 1976 1986 - Apr lastSun 2:00 1:00 D
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Rule US 1987 2006 - Apr Sun>=1 2:00 1:00 D
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Rule US 2007 max - Mar Sun>=8 2:00 1:00 D
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Rule US 2007 max - Nov Sun>=1 2:00 0 S
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# From Arthur David Olson, 2005-12-19
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# We generate the files specified below to guard against old files with
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# obsolete information being left in the time zone binary directory.
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# We limit the list to names that have appeared in previous versions of
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# this time zone package.
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# We do these as separate Zones rather than as Links to avoid problems if
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# a particular place changes whether it observes DST.
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# We put these specifications here in the northamerica file both to
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# increase the chances that they'll actually get compiled and to
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# avoid the need to duplicate the US rules in another file.
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# Zone NAME GMTOFF RULES FORMAT [UNTIL]
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Zone EST -5:00 - EST
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Zone MST -7:00 - MST
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Zone HST -10:00 - HST
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Zone EST5EDT -5:00 US E%sT
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Zone CST6CDT -6:00 US C%sT
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Zone MST7MDT -7:00 US M%sT
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Zone PST8PDT -8:00 US P%sT
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# From Bob Devine (1988-01-28):
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# ...Alaska (and Hawaii) had the timezone names changed in 1967.
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# old new
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# Pacific Standard Time(PST) -same-
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# Yukon Standard Time(YST) -same-
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# Central Alaska S.T. (CAT) Alaska-Hawaii St[an]dard Time (AHST)
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# Nome Standard Time (NT) Bering Standard Time (BST)
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#
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# ...Alaska's timezone lines were redrawn in 1983 to give only 2 tz.
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# The YST zone now covers nearly all of the state, AHST just part
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# of the Aleutian islands. No DST.
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# From Paul Eggert (1995-12-19):
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# The tables below use 'NST', not 'NT', for Nome Standard Time.
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# I invented 'CAWT' for Central Alaska War Time.
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# From U. S. Naval Observatory (1989-01-19):
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# USA EASTERN 5 H BEHIND UTC NEW YORK, WASHINGTON
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# USA EASTERN 4 H BEHIND UTC APR 3 - OCT 30
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# USA CENTRAL 6 H BEHIND UTC CHICAGO, HOUSTON
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# USA CENTRAL 5 H BEHIND UTC APR 3 - OCT 30
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# USA MOUNTAIN 7 H BEHIND UTC DENVER
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# USA MOUNTAIN 6 H BEHIND UTC APR 3 - OCT 30
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# USA PACIFIC 8 H BEHIND UTC L.A., SAN FRANCISCO
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# USA PACIFIC 7 H BEHIND UTC APR 3 - OCT 30
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# USA ALASKA STD 9 H BEHIND UTC MOST OF ALASKA (AKST)
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# USA ALASKA STD 8 H BEHIND UTC APR 3 - OCT 30 (AKDT)
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# USA ALEUTIAN 10 H BEHIND UTC ISLANDS WEST OF 170W
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# USA - " - 9 H BEHIND UTC APR 3 - OCT 30
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# USA HAWAII 10 H BEHIND UTC
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# USA BERING 11 H BEHIND UTC SAMOA, MIDWAY
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# From Arthur David Olson (1989-01-21):
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# The above dates are for 1988.
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# Note the "AKST" and "AKDT" abbreviations, the claim that there's
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# no DST in Samoa, and the claim that there is DST in Alaska and the
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# Aleutians.
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# From Arthur David Olson (1988-02-13):
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# Legal standard time zone names, from United States Code (1982 Edition and
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# Supplement III), Title 15, Chapter 6, Section 260 and forward. First, names
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# up to 1967-04-01 (when most provisions of the Uniform Time Act of 1966
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# took effect), as explained in sections 263 and 261:
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# (none)
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# United States standard eastern time
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# United States standard mountain time
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# United States standard central time
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# United States standard Pacific time
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# (none)
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# United States standard Alaska time
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# (none)
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# Next, names from 1967-04-01 until 1983-11-30 (the date for
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# public law 98-181):
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# Atlantic standard time
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# eastern standard time
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# central standard time
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# mountain standard time
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# Pacific standard time
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# Yukon standard time
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# Alaska-Hawaii standard time
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# Bering standard time
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# And after 1983-11-30:
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# Atlantic standard time
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# eastern standard time
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# central standard time
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# mountain standard time
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# Pacific standard time
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# Alaska standard time
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# Hawaii-Aleutian standard time
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# Samoa standard time
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# The law doesn't give abbreviations.
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#
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# From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:
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# Public law 106-564 (2000-12-23) introduced the abbreviation
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# "Chamorro Standard Time" for time in Guam and the Northern Marianas.
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# See the file "australasia".
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# From Arthur David Olson, 2005-08-09
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# The following was signed into law on 2005-08-08.
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#
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|
260 |
# H.R. 6, Energy Policy Act of 2005, SEC. 110. DAYLIGHT SAVINGS.
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|
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# (a) Amendment- Section 3(a) of the Uniform Time Act of 1966 (15
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# U.S.C. 260a(a)) is amended--
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# (1) by striking 'first Sunday of April' and inserting 'second
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# Sunday of March'; and
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# (2) by striking 'last Sunday of October' and inserting 'first
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# Sunday of November'.
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# (b) Effective Date- Subsection (a) shall take effect 1 year after the
|
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# date of enactment of this Act or March 1, 2007, whichever is later.
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|
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# (c) Report to Congress- Not later than 9 months after the effective
|
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# date stated in subsection (b), the Secretary shall report to Congress
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# on the impact of this section on energy consumption in the United
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# States.
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# (d) Right to Revert- Congress retains the right to revert the
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# Daylight Saving Time back to the 2005 time schedules once the
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# Department study is complete.
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# US eastern time, represented by New York
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# Connecticut, Delaware, District of Columbia, most of Florida,
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# Georgia, southeast Indiana (Dearborn and Ohio counties), eastern Kentucky
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# (except America/Kentucky/Louisville below), Maine, Maryland, Massachusetts,
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# New Hampshire, New Jersey, New York, North Carolina, Ohio,
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|
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# Pennsylvania, Rhode Island, South Carolina, eastern Tennessee,
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|
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# Vermont, Virginia, West Virginia
|
|
285 |
|
|
286 |
# From Dave Cantor (2004-11-02):
|
|
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# Early this summer I had the occasion to visit the Mount Washington
|
|
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# Observatory weather station atop (of course!) Mount Washington [, NH]....
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# One of the staff members said that the station was on Eastern Standard Time
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# and didn't change their clocks for Daylight Saving ... so that their
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|
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# reports will always have times which are 5 hours behind UTC.
|
|
292 |
|
|
293 |
# From Paul Eggert (2005-08-26):
|
|
294 |
# According to today's Huntsville Times
|
|
295 |
# <http://www.al.com/news/huntsvilletimes/index.ssf?/base/news/1125047783228320.xml&coll=1>
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# a few towns on Alabama's "eastern border with Georgia, such as Phenix City
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# in Russell County, Lanett in Chambers County and some towns in Lee County,
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# set their watches and clocks on Eastern time." It quotes H.H. "Bubba"
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# Roberts, city administrator in Phenix City. as saying "We are in the Central
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|
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# time zone, but we do go by the Eastern time zone because so many people work
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# in Columbus."
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302 |
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|
303 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
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304 |
Rule NYC 1920 only - Mar lastSun 2:00 1:00 D
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305 |
Rule NYC 1920 only - Oct lastSun 2:00 0 S
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|
306 |
Rule NYC 1921 1966 - Apr lastSun 2:00 1:00 D
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307 |
Rule NYC 1921 1954 - Sep lastSun 2:00 0 S
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|
308 |
Rule NYC 1955 1966 - Oct lastSun 2:00 0 S
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|
309 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
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310 |
Zone America/New_York -4:56:02 - LMT 1883 Nov 18 12:03:58
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-5:00 US E%sT 1920
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312 |
-5:00 NYC E%sT 1942
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|
313 |
-5:00 US E%sT 1946
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|
314 |
-5:00 NYC E%sT 1967
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|
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-5:00 US E%sT
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316 |
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|
317 |
# US central time, represented by Chicago
|
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318 |
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|
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# Alabama, Arkansas, Florida panhandle (Bay, Calhoun, Escambia,
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# Gulf, Holmes, Jackson, Okaloosa, Santa Rosa, Walton, and
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# Washington counties), Illinois, western Indiana
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# (Gibson, Jasper, Lake, LaPorte, Newton, Porter, Posey, Spencer,
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323 |
# Vanderburgh, and Warrick counties), Iowa, most of Kansas, western
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324 |
# Kentucky, Louisiana, Minnesota, Mississippi, Missouri, eastern
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325 |
# Nebraska, eastern North Dakota, Oklahoma, eastern South Dakota,
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326 |
# western Tennessee, most of Texas, Wisconsin
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327 |
|
|
328 |
# From Larry M. Smith (2006-04-26) re Wisconsin:
|
|
329 |
# http://www.legis.state.wi.us/statutes/Stat0175.pdf ...
|
|
330 |
# is currently enforced at the 01:00 time of change. Because the local
|
|
331 |
# "bar time" in the state corresponds to 02:00, a number of citations
|
|
332 |
# are issued for the "sale of class 'B' alcohol after prohibited
|
|
333 |
# hours" within the deviated hour of this change every year....
|
|
334 |
#
|
|
335 |
# From Douglas R. Bomberg (2007-03-12):
|
|
336 |
# Wisconsin has enacted (nearly eleventh-hour) legislation to get WI
|
|
337 |
# Statue 175 closer in synch with the US Congress' intent....
|
|
338 |
# http://www.legis.state.wi.us/2007/data/acts/07Act3.pdf
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339 |
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340 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
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|
341 |
Rule Chicago 1920 only - Jun 13 2:00 1:00 D
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|
342 |
Rule Chicago 1920 1921 - Oct lastSun 2:00 0 S
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|
343 |
Rule Chicago 1921 only - Mar lastSun 2:00 1:00 D
|
|
344 |
Rule Chicago 1922 1966 - Apr lastSun 2:00 1:00 D
|
|
345 |
Rule Chicago 1922 1954 - Sep lastSun 2:00 0 S
|
|
346 |
Rule Chicago 1955 1966 - Oct lastSun 2:00 0 S
|
|
347 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
348 |
Zone America/Chicago -5:50:36 - LMT 1883 Nov 18 12:09:24
|
|
349 |
-6:00 US C%sT 1920
|
|
350 |
-6:00 Chicago C%sT 1936 Mar 1 2:00
|
|
351 |
-5:00 - EST 1936 Nov 15 2:00
|
|
352 |
-6:00 Chicago C%sT 1942
|
|
353 |
-6:00 US C%sT 1946
|
|
354 |
-6:00 Chicago C%sT 1967
|
|
355 |
-6:00 US C%sT
|
|
356 |
# Oliver County, ND switched from mountain to central time on 1992-10-25.
|
|
357 |
Zone America/North_Dakota/Center -6:45:12 - LMT 1883 Nov 18 12:14:48
|
|
358 |
-7:00 US M%sT 1992 Oct 25 02:00
|
|
359 |
-6:00 US C%sT
|
|
360 |
# Morton County, ND, switched from mountain to central time on
|
|
361 |
# 2003-10-26, except for the area around Mandan which was already central time.
|
|
362 |
# See <http://dmses.dot.gov/docimages/p63/135818.pdf>.
|
|
363 |
# Officially this switch also included part of Sioux County, and
|
|
364 |
# Jones, Mellette, and Todd Counties in South Dakota;
|
|
365 |
# but in practice these other counties were already observing central time.
|
|
366 |
# See <http://www.epa.gov/fedrgstr/EPA-IMPACT/2003/October/Day-28/i27056.htm>.
|
|
367 |
Zone America/North_Dakota/New_Salem -6:45:39 - LMT 1883 Nov 18 12:14:21
|
|
368 |
-7:00 US M%sT 2003 Oct 26 02:00
|
|
369 |
-6:00 US C%sT
|
|
370 |
|
|
371 |
# From Josh Findley (2011-01-21):
|
|
372 |
# ...it appears that Mercer County, North Dakota, changed from the
|
|
373 |
# mountain time zone to the central time zone at the last transition from
|
|
374 |
# daylight-saving to standard time (on Nov. 7, 2010):
|
|
375 |
# <a href="http://www.gpo.gov/fdsys/pkg/FR-2010-09-29/html/2010-24376.htm">
|
|
376 |
# http://www.gpo.gov/fdsys/pkg/FR-2010-09-29/html/2010-24376.htm
|
|
377 |
# </a>
|
|
378 |
# <a href="http://www.bismarcktribune.com/news/local/article_1eb1b588-c758-11df-b472-001cc4c03286.html">
|
|
379 |
# http://www.bismarcktribune.com/news/local/article_1eb1b588-c758-11df-b472-001cc4c03286.html
|
|
380 |
# </a>
|
|
381 |
|
|
382 |
# From Andy Lipscomb (2011-01-24):
|
|
383 |
# ...according to the Census Bureau, the largest city is Beulah (although
|
|
384 |
# it's commonly referred to as Beulah-Hazen, with Hazen being the next
|
|
385 |
# largest city in Mercer County). Google Maps places Beulah's city hall
|
|
386 |
# at 4715'51" north, 10146'40" west, which yields an offset of 6h47'07".
|
|
387 |
|
|
388 |
Zone America/North_Dakota/Beulah -6:47:07 - LMT 1883 Nov 18 12:12:53
|
|
389 |
-7:00 US M%sT 2010 Nov 7 2:00
|
|
390 |
-6:00 US C%sT
|
|
391 |
|
|
392 |
# US mountain time, represented by Denver
|
|
393 |
#
|
|
394 |
# Colorado, far western Kansas, Montana, western
|
|
395 |
# Nebraska, Nevada border (Jackpot, Owyhee, and Mountain City),
|
|
396 |
# New Mexico, southwestern North Dakota,
|
|
397 |
# western South Dakota, far western Texas (El Paso County, Hudspeth County,
|
|
398 |
# and Pine Springs and Nickel Creek in Culberson County), Utah, Wyoming
|
|
399 |
#
|
|
400 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
|
401 |
Rule Denver 1920 1921 - Mar lastSun 2:00 1:00 D
|
|
402 |
Rule Denver 1920 only - Oct lastSun 2:00 0 S
|
|
403 |
Rule Denver 1921 only - May 22 2:00 0 S
|
|
404 |
Rule Denver 1965 1966 - Apr lastSun 2:00 1:00 D
|
|
405 |
Rule Denver 1965 1966 - Oct lastSun 2:00 0 S
|
|
406 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
407 |
Zone America/Denver -6:59:56 - LMT 1883 Nov 18 12:00:04
|
|
408 |
-7:00 US M%sT 1920
|
|
409 |
-7:00 Denver M%sT 1942
|
|
410 |
-7:00 US M%sT 1946
|
|
411 |
-7:00 Denver M%sT 1967
|
|
412 |
-7:00 US M%sT
|
|
413 |
|
|
414 |
# US Pacific time, represented by Los Angeles
|
|
415 |
#
|
|
416 |
# California, northern Idaho (Benewah, Bonner, Boundary, Clearwater,
|
|
417 |
# Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties,
|
|
418 |
# and the northern three-quarters of Idaho county),
|
|
419 |
# most of Nevada, most of Oregon, and Washington
|
|
420 |
#
|
|
421 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
|
422 |
Rule CA 1948 only - Mar 14 2:00 1:00 D
|
|
423 |
Rule CA 1949 only - Jan 1 2:00 0 S
|
|
424 |
Rule CA 1950 1966 - Apr lastSun 2:00 1:00 D
|
|
425 |
Rule CA 1950 1961 - Sep lastSun 2:00 0 S
|
|
426 |
Rule CA 1962 1966 - Oct lastSun 2:00 0 S
|
|
427 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
428 |
Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02
|
|
429 |
-8:00 US P%sT 1946
|
|
430 |
-8:00 CA P%sT 1967
|
|
431 |
-8:00 US P%sT
|
|
432 |
|
|
433 |
# Alaska
|
|
434 |
# AK%sT is the modern abbreviation for -9:00 per USNO.
|
|
435 |
#
|
|
436 |
# From Paul Eggert (2001-05-30):
|
|
437 |
# Howse writes that Alaska switched from the Julian to the Gregorian calendar,
|
|
438 |
# and from east-of-GMT to west-of-GMT days, when the US bought it from Russia.
|
|
439 |
# This was on 1867-10-18, a Friday; the previous day was 1867-10-06 Julian,
|
|
440 |
# also a Friday. Include only the time zone part of this transition,
|
|
441 |
# ignoring the switch from Julian to Gregorian, since we can't represent
|
|
442 |
# the Julian calendar.
|
|
443 |
#
|
|
444 |
# As far as we know, none of the exact locations mentioned below were
|
|
445 |
# permanently inhabited in 1867 by anyone using either calendar.
|
|
446 |
# (Yakutat was colonized by the Russians in 1799, but the settlement
|
|
447 |
# was destroyed in 1805 by a Yakutat-kon war party.) However, there
|
|
448 |
# were nearby inhabitants in some cases and for our purposes perhaps
|
|
449 |
# it's best to simply use the official transition.
|
|
450 |
#
|
|
451 |
|
|
452 |
# From Steve Ferguson (2011-01-31):
|
|
453 |
# The author lives in Alaska and many of the references listed are only
|
|
454 |
# available to Alaskan residents.
|
|
455 |
#
|
|
456 |
# <a href="http://www.alaskahistoricalsociety.org/index.cfm?section=discover%20alaska&page=Glimpses%20of%20the%20Past&viewpost=2&ContentId=98">
|
|
457 |
# http://www.alaskahistoricalsociety.org/index.cfm?section=discover%20alaska&page=Glimpses%20of%20the%20Past&viewpost=2&ContentId=98
|
|
458 |
# </a>
|
|
459 |
|
|
460 |
# From Arthur David Olson (2011-02-01):
|
|
461 |
# Here's database-relevant material from the 2001 "Alaska History" article:
|
|
462 |
#
|
|
463 |
# On September 20 [1979]...DOT...officials decreed that on April 27,
|
|
464 |
# 1980, Juneau and other nearby communities would move to Yukon Time.
|
|
465 |
# Sitka, Petersburg, Wrangell, and Ketchikan, however, would remain on
|
|
466 |
# Pacific Time.
|
|
467 |
#
|
|
468 |
# ...on September 22, 1980, DOT Secretary Neil E. Goldschmidt rescinded the
|
|
469 |
# Department's September 1979 decision. Juneau and other communities in
|
|
470 |
# northern Southeast reverted to Pacific Time on October 26.
|
|
471 |
#
|
|
472 |
# On October 28 [1983]...the Metlakatla Indian Community Council voted
|
|
473 |
# unanimously to keep the reservation on Pacific Time.
|
|
474 |
#
|
|
475 |
# According to DOT official Joanne Petrie, Indian reservations are not
|
|
476 |
# bound to follow time zones imposed by neighboring jurisdictions.
|
|
477 |
#
|
|
478 |
# (The last is consistent with how the database now handles the Navajo
|
|
479 |
# Nation.)
|
|
480 |
|
|
481 |
# From Arthur David Olson (2011-02-09):
|
|
482 |
# I just spoke by phone with a staff member at the Metlakatla Indian
|
|
483 |
# Community office (using contact information available at
|
|
484 |
# <a href="http://www.commerce.state.ak.us/dca/commdb/CIS.cfm?Comm_Boro_name=Metlakatla">
|
|
485 |
# http://www.commerce.state.ak.us/dca/commdb/CIS.cfm?Comm_Boro_name=Metlakatla
|
|
486 |
# </a>).
|
|
487 |
# It's shortly after 1:00 here on the east coast of the United States;
|
|
488 |
# the staffer said it was shortly after 10:00 there. When I asked whether
|
|
489 |
# that meant they were on Pacific time, they said no--they were on their
|
|
490 |
# own time. I asked about daylight saving; they said it wasn't used. I
|
|
491 |
# did not inquire about practices in the past.
|
|
492 |
|
|
493 |
# From Arthur David Olson (2011-08-17):
|
|
494 |
# For lack of better information, assume that Metlakatla's
|
|
495 |
# abandonment of use of daylight saving resulted from the 1983 vote.
|
|
496 |
|
|
497 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
498 |
Zone America/Juneau 15:02:19 - LMT 1867 Oct 18
|
|
499 |
-8:57:41 - LMT 1900 Aug 20 12:00
|
|
500 |
-8:00 - PST 1942
|
|
501 |
-8:00 US P%sT 1946
|
|
502 |
-8:00 - PST 1969
|
|
503 |
-8:00 US P%sT 1980 Apr 27 2:00
|
|
504 |
-9:00 US Y%sT 1980 Oct 26 2:00
|
|
505 |
-8:00 US P%sT 1983 Oct 30 2:00
|
|
506 |
-9:00 US Y%sT 1983 Nov 30
|
|
507 |
-9:00 US AK%sT
|
|
508 |
Zone America/Sitka 14:58:47 - LMT 1867 Oct 18
|
|
509 |
-9:01:13 - LMT 1900 Aug 20 12:00
|
|
510 |
-8:00 - PST 1942
|
|
511 |
-8:00 US P%sT 1946
|
|
512 |
-8:00 - PST 1969
|
|
513 |
-8:00 US P%sT 1983 Oct 30 2:00
|
|
514 |
-9:00 US Y%sT 1983 Nov 30
|
|
515 |
-9:00 US AK%sT
|
|
516 |
Zone America/Metlakatla 15:13:42 - LMT 1867 Oct 18
|
|
517 |
-8:46:18 - LMT 1900 Aug 20 12:00
|
|
518 |
-8:00 - PST 1942
|
|
519 |
-8:00 US P%sT 1946
|
|
520 |
-8:00 - PST 1969
|
|
521 |
-8:00 US P%sT 1983 Oct 30 2:00
|
|
522 |
-8:00 - MeST
|
|
523 |
Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18
|
|
524 |
-9:18:55 - LMT 1900 Aug 20 12:00
|
|
525 |
-9:00 - YST 1942
|
|
526 |
-9:00 US Y%sT 1946
|
|
527 |
-9:00 - YST 1969
|
|
528 |
-9:00 US Y%sT 1983 Nov 30
|
|
529 |
-9:00 US AK%sT
|
|
530 |
Zone America/Anchorage 14:00:24 - LMT 1867 Oct 18
|
|
531 |
-9:59:36 - LMT 1900 Aug 20 12:00
|
|
532 |
-10:00 - CAT 1942
|
|
533 |
-10:00 US CAT/CAWT 1945 Aug 14 23:00u
|
|
534 |
-10:00 US CAT/CAPT 1946 # Peace
|
|
535 |
-10:00 - CAT 1967 Apr
|
|
536 |
-10:00 - AHST 1969
|
|
537 |
-10:00 US AH%sT 1983 Oct 30 2:00
|
|
538 |
-9:00 US Y%sT 1983 Nov 30
|
|
539 |
-9:00 US AK%sT
|
|
540 |
Zone America/Nome 12:58:21 - LMT 1867 Oct 18
|
|
541 |
-11:01:38 - LMT 1900 Aug 20 12:00
|
|
542 |
-11:00 - NST 1942
|
|
543 |
-11:00 US N%sT 1946
|
|
544 |
-11:00 - NST 1967 Apr
|
|
545 |
-11:00 - BST 1969
|
|
546 |
-11:00 US B%sT 1983 Oct 30 2:00
|
|
547 |
-9:00 US Y%sT 1983 Nov 30
|
|
548 |
-9:00 US AK%sT
|
|
549 |
Zone America/Adak 12:13:21 - LMT 1867 Oct 18
|
|
550 |
-11:46:38 - LMT 1900 Aug 20 12:00
|
|
551 |
-11:00 - NST 1942
|
|
552 |
-11:00 US N%sT 1946
|
|
553 |
-11:00 - NST 1967 Apr
|
|
554 |
-11:00 - BST 1969
|
|
555 |
-11:00 US B%sT 1983 Oct 30 2:00
|
|
556 |
-10:00 US AH%sT 1983 Nov 30
|
|
557 |
-10:00 US HA%sT
|
|
558 |
# The following switches don't quite make our 1970 cutoff.
|
|
559 |
#
|
|
560 |
# Shanks writes that part of southwest Alaska (e.g. Aniak)
|
|
561 |
# switched from -11:00 to -10:00 on 1968-09-22 at 02:00,
|
|
562 |
# and another part (e.g. Akiak) made the same switch five weeks later.
|
|
563 |
#
|
|
564 |
# From David Flater (2004-11-09):
|
|
565 |
# In e-mail, 2004-11-02, Ray Hudson, historian/liaison to the Unalaska
|
|
566 |
# Historic Preservation Commission, provided this information, which
|
|
567 |
# suggests that Unalaska deviated from statutory time from early 1967
|
|
568 |
# possibly until 1983:
|
|
569 |
#
|
|
570 |
# Minutes of the Unalaska City Council Meeting, January 10, 1967:
|
|
571 |
# "Except for St. Paul and Akutan, Unalaska is the only important
|
|
572 |
# location not on Alaska Standard Time. The following resolution was
|
|
573 |
# made by William Robinson and seconded by Henry Swanson: Be it
|
|
574 |
# resolved that the City of Unalaska hereby goes to Alaska Standard
|
|
575 |
# Time as of midnight Friday, January 13, 1967 (1 A.M. Saturday,
|
|
576 |
# January 14, Alaska Standard Time.) This resolution was passed with
|
|
577 |
# three votes for and one against."
|
|
578 |
|
|
579 |
# Hawaii
|
|
580 |
|
|
581 |
# From Arthur David Olson (2010-12-09):
|
|
582 |
# "Hawaiian Time" by Robert C. Schmitt and Doak C. Cox appears on pages 207-225
|
|
583 |
# of volume 26 of The Hawaiian Journal of History (1992). As of 2010-12-09,
|
|
584 |
# the article is available at
|
|
585 |
# <a href="http://evols.library.manoa.hawaii.edu/bitstream/10524/239/2/JL26215.pdf">
|
|
586 |
# http://evols.library.manoa.hawaii.edu/bitstream/10524/239/2/JL26215.pdf
|
|
587 |
# </a>
|
|
588 |
# and indicates that standard time was adopted effective noon, January
|
|
589 |
# 13, 1896 (page 218), that in "1933, the Legislature decreed daylight
|
|
590 |
# saving for the period between the last Sunday of each April and the
|
|
591 |
# last Sunday of each September, but less than a month later repealed the
|
|
592 |
# act," (page 220), that year-round daylight saving time was in effect
|
|
593 |
# from 1942-02-09 to 1945-09-30 (page 221, with no time of day given for
|
|
594 |
# when clocks changed) and that clocks were changed by 30 minutes
|
|
595 |
# effective the second Sunday of June, 1947 (page 219, with no time of
|
|
596 |
# day given for when clocks changed). A footnote for the 1933 changes
|
|
597 |
# cites Session Laws of Hawaii 1933, "Act. 90 (approved 26 Apr. 1933)
|
|
598 |
# and Act 163 (approved 21 May 1933)."
|
|
599 |
|
|
600 |
# From Arthur David Olson (2011-01-19):
|
|
601 |
# The following is from "Laws of the Territory of Hawaii Passed by the
|
|
602 |
# Seventeenth Legislature: Regular Session 1933," available (as of
|
|
603 |
# 2011-01-19) at American University's Pence Law Library. Page 85: "Act
|
|
604 |
# 90...At 2 o'clock ante meridian of the last Sunday in April of each
|
|
605 |
# year, the standard time of this Territory shall be advanced one
|
|
606 |
# hour...This Act shall take effect upon its approval. Approved this 26th
|
|
607 |
# day of April, A. D. 1933. LAWRENCE M JUDD, Governor of the Territory of
|
|
608 |
# Hawaii." Page 172: "Act 163...Act 90 of the Session Laws of 1933 is
|
|
609 |
# hereby repealed...This Act shall take effect upon its approval, upon
|
|
610 |
# which date the standard time of this Territory shall be restored to
|
|
611 |
# that existing immediately prior to the taking effect of said Act 90.
|
|
612 |
# Approved this 21st day of May, A. D. 1933. LAWRENCE M. JUDD, Governor
|
|
613 |
# of the Territory of Hawaii."
|
|
614 |
#
|
|
615 |
# Note that 1933-05-21 was a Sunday.
|
|
616 |
# We're left to guess the time of day when Act 163 was approved; guess noon.
|
|
617 |
|
|
618 |
Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00 #Schmitt&Cox
|
|
619 |
-10:30 - HST 1933 Apr 30 2:00 #Laws 1933
|
|
620 |
-10:30 1:00 HDT 1933 May 21 12:00 #Laws 1933+12
|
|
621 |
-10:30 - HST 1942 Feb 09 2:00 #Schmitt&Cox+2
|
|
622 |
-10:30 1:00 HDT 1945 Sep 30 2:00 #Schmitt&Cox+2
|
|
623 |
-10:30 - HST 1947 Jun 8 2:00 #Schmitt&Cox+2
|
|
624 |
-10:00 - HST
|
|
625 |
|
20867
|
626 |
Link Pacific/Honolulu Pacific/Johnston
|
|
627 |
|
15658
|
628 |
# Now we turn to US areas that have diverged from the consensus since 1970.
|
|
629 |
|
|
630 |
# Arizona mostly uses MST.
|
|
631 |
|
|
632 |
# From Paul Eggert (2002-10-20):
|
|
633 |
#
|
|
634 |
# The information in the rest of this paragraph is derived from the
|
|
635 |
# <a href="http://www.dlapr.lib.az.us/links/daylight.htm">
|
|
636 |
# Daylight Saving Time web page (2002-01-23)</a> maintained by the
|
|
637 |
# Arizona State Library, Archives and Public Records.
|
|
638 |
# Between 1944-01-01 and 1944-04-01 the State of Arizona used standard
|
|
639 |
# time, but by federal law railroads, airlines, bus lines, military
|
|
640 |
# personnel, and some engaged in interstate commerce continued to
|
|
641 |
# observe war (i.e., daylight saving) time. The 1944-03-17 Phoenix
|
|
642 |
# Gazette says that was the date the law changed, and that 04-01 was
|
|
643 |
# the date the state's clocks would change. In 1945 the State of
|
|
644 |
# Arizona used standard time all year, again with exceptions only as
|
|
645 |
# mandated by federal law. Arizona observed DST in 1967, but Arizona
|
|
646 |
# Laws 1968, ch. 183 (effective 1968-03-21) repealed DST.
|
|
647 |
#
|
|
648 |
# Shanks says the 1944 experiment came to an end on 1944-03-17.
|
|
649 |
# Go with the Arizona State Library instead.
|
|
650 |
|
|
651 |
Zone America/Phoenix -7:28:18 - LMT 1883 Nov 18 11:31:42
|
|
652 |
-7:00 US M%sT 1944 Jan 1 00:01
|
|
653 |
-7:00 - MST 1944 Apr 1 00:01
|
|
654 |
-7:00 US M%sT 1944 Oct 1 00:01
|
|
655 |
-7:00 - MST 1967
|
|
656 |
-7:00 US M%sT 1968 Mar 21
|
|
657 |
-7:00 - MST
|
|
658 |
# From Arthur David Olson (1988-02-13):
|
|
659 |
# A writer from the Inter Tribal Council of Arizona, Inc.,
|
|
660 |
# notes in private correspondence dated 1987-12-28 that "Presently, only the
|
|
661 |
# Navajo Nation participates in the Daylight Saving Time policy, due to its
|
|
662 |
# large size and location in three states." (The "only" means that other
|
|
663 |
# tribal nations don't use DST.)
|
20867
|
664 |
#
|
|
665 |
# From Paul Eggert (2013-08-26):
|
|
666 |
# See America/Denver for a zone appropriate for the Navajo Nation.
|
15658
|
667 |
|
|
668 |
# Southern Idaho (Ada, Adams, Bannock, Bear Lake, Bingham, Blaine,
|
|
669 |
# Boise, Bonneville, Butte, Camas, Canyon, Caribou, Cassia, Clark,
|
|
670 |
# Custer, Elmore, Franklin, Fremont, Gem, Gooding, Jefferson, Jerome,
|
|
671 |
# Lemhi, Lincoln, Madison, Minidoka, Oneida, Owyhee, Payette, Power,
|
|
672 |
# Teton, Twin Falls, Valley, Washington counties, and the southern
|
|
673 |
# quarter of Idaho county) and eastern Oregon (most of Malheur County)
|
|
674 |
# switched four weeks late in 1974.
|
|
675 |
#
|
|
676 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
677 |
Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:15:11
|
|
678 |
-8:00 US P%sT 1923 May 13 2:00
|
|
679 |
-7:00 US M%sT 1974
|
|
680 |
-7:00 - MST 1974 Feb 3 2:00
|
|
681 |
-7:00 US M%sT
|
|
682 |
|
|
683 |
# Indiana
|
|
684 |
#
|
|
685 |
# For a map of Indiana's time zone regions, see:
|
|
686 |
# <a href="http://www.mccsc.edu/time.html">
|
|
687 |
# What time is it in Indiana?
|
|
688 |
# </a> (2006-03-01)
|
|
689 |
#
|
|
690 |
# From Paul Eggert (2007-08-17):
|
|
691 |
# Since 1970, most of Indiana has been like America/Indiana/Indianapolis,
|
|
692 |
# with the following exceptions:
|
|
693 |
#
|
|
694 |
# - Gibson, Jasper, Lake, LaPorte, Newton, Porter, Posey, Spencer,
|
|
695 |
# Vandenburgh, and Warrick counties have been like America/Chicago.
|
|
696 |
#
|
|
697 |
# - Dearborn and Ohio counties have been like America/New_York.
|
|
698 |
#
|
|
699 |
# - Clark, Floyd, and Harrison counties have been like
|
|
700 |
# America/Kentucky/Louisville.
|
|
701 |
#
|
|
702 |
# - Crawford, Daviess, Dubois, Knox, Martin, Perry, Pike, Pulaski, Starke,
|
|
703 |
# and Switzerland counties have their own time zone histories as noted below.
|
|
704 |
#
|
|
705 |
# Shanks partitioned Indiana into 345 regions, each with its own time history,
|
20867
|
706 |
# and wrote "Even newspaper reports present contradictory information."
|
15658
|
707 |
# Those Hoosiers! Such a flighty and changeable people!
|
|
708 |
# Fortunately, most of the complexity occurred before our cutoff date of 1970.
|
|
709 |
#
|
|
710 |
# Other than Indianapolis, the Indiana place names are so nondescript
|
20867
|
711 |
# that they would be ambiguous if we left them at the 'America' level.
|
|
712 |
# So we reluctantly put them all in a subdirectory 'America/Indiana'.
|
15658
|
713 |
|
|
714 |
# From Paul Eggert (2005-08-16):
|
|
715 |
# http://www.mccsc.edu/time.html says that Indiana will use DST starting 2006.
|
|
716 |
|
|
717 |
# From Nathan Stratton Treadway (2006-03-30):
|
|
718 |
# http://www.dot.gov/affairs/dot0406.htm [3705 B]
|
|
719 |
# From Deborah Goldsmith (2006-01-18):
|
|
720 |
# http://dmses.dot.gov/docimages/pdf95/382329_web.pdf [2.9 MB]
|
|
721 |
# From Paul Eggert (2006-01-20):
|
|
722 |
# It says "DOT is relocating the time zone boundary in Indiana to move Starke,
|
|
723 |
# Pulaski, Knox, Daviess, Martin, Pike, Dubois, and Perry Counties from the
|
|
724 |
# Eastern Time Zone to the Central Time Zone.... The effective date of
|
|
725 |
# this rule is 2:OO a.m. EST Sunday, April 2, 2006, which is the
|
|
726 |
# changeover date from standard time to Daylight Saving Time."
|
|
727 |
# Strictly speaking, this means the affected counties will change their
|
|
728 |
# clocks twice that night, but this obviously is in error. The intent
|
|
729 |
# is that 01:59:59 EST be followed by 02:00:00 CDT.
|
|
730 |
|
|
731 |
# From Gwillim Law (2007-02-10):
|
|
732 |
# The Associated Press has been reporting that Pulaski County, Indiana is
|
|
733 |
# going to switch from Central to Eastern Time on March 11, 2007....
|
|
734 |
# http://www.indystar.com/apps/pbcs.dll/article?AID=/20070207/LOCAL190108/702070524/0/LOCAL
|
|
735 |
|
|
736 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
|
737 |
Rule Indianapolis 1941 only - Jun 22 2:00 1:00 D
|
|
738 |
Rule Indianapolis 1941 1954 - Sep lastSun 2:00 0 S
|
|
739 |
Rule Indianapolis 1946 1954 - Apr lastSun 2:00 1:00 D
|
|
740 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
741 |
Zone America/Indiana/Indianapolis -5:44:38 - LMT 1883 Nov 18 12:15:22
|
|
742 |
-6:00 US C%sT 1920
|
|
743 |
-6:00 Indianapolis C%sT 1942
|
|
744 |
-6:00 US C%sT 1946
|
|
745 |
-6:00 Indianapolis C%sT 1955 Apr 24 2:00
|
|
746 |
-5:00 - EST 1957 Sep 29 2:00
|
|
747 |
-6:00 - CST 1958 Apr 27 2:00
|
|
748 |
-5:00 - EST 1969
|
|
749 |
-5:00 US E%sT 1971
|
|
750 |
-5:00 - EST 2006
|
|
751 |
-5:00 US E%sT
|
|
752 |
#
|
|
753 |
# Eastern Crawford County, Indiana, left its clocks alone in 1974,
|
|
754 |
# as well as from 1976 through 2005.
|
|
755 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
|
756 |
Rule Marengo 1951 only - Apr lastSun 2:00 1:00 D
|
|
757 |
Rule Marengo 1951 only - Sep lastSun 2:00 0 S
|
|
758 |
Rule Marengo 1954 1960 - Apr lastSun 2:00 1:00 D
|
|
759 |
Rule Marengo 1954 1960 - Sep lastSun 2:00 0 S
|
|
760 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
761 |
Zone America/Indiana/Marengo -5:45:23 - LMT 1883 Nov 18 12:14:37
|
|
762 |
-6:00 US C%sT 1951
|
|
763 |
-6:00 Marengo C%sT 1961 Apr 30 2:00
|
|
764 |
-5:00 - EST 1969
|
|
765 |
-5:00 US E%sT 1974 Jan 6 2:00
|
|
766 |
-6:00 1:00 CDT 1974 Oct 27 2:00
|
|
767 |
-5:00 US E%sT 1976
|
|
768 |
-5:00 - EST 2006
|
|
769 |
-5:00 US E%sT
|
|
770 |
#
|
|
771 |
# Daviess, Dubois, Knox, and Martin Counties, Indiana,
|
|
772 |
# switched from eastern to central time in April 2006, then switched back
|
|
773 |
# in November 2007.
|
|
774 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
|
775 |
Rule Vincennes 1946 only - Apr lastSun 2:00 1:00 D
|
|
776 |
Rule Vincennes 1946 only - Sep lastSun 2:00 0 S
|
|
777 |
Rule Vincennes 1953 1954 - Apr lastSun 2:00 1:00 D
|
|
778 |
Rule Vincennes 1953 1959 - Sep lastSun 2:00 0 S
|
|
779 |
Rule Vincennes 1955 only - May 1 0:00 1:00 D
|
|
780 |
Rule Vincennes 1956 1963 - Apr lastSun 2:00 1:00 D
|
|
781 |
Rule Vincennes 1960 only - Oct lastSun 2:00 0 S
|
|
782 |
Rule Vincennes 1961 only - Sep lastSun 2:00 0 S
|
|
783 |
Rule Vincennes 1962 1963 - Oct lastSun 2:00 0 S
|
|
784 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
785 |
Zone America/Indiana/Vincennes -5:50:07 - LMT 1883 Nov 18 12:09:53
|
|
786 |
-6:00 US C%sT 1946
|
|
787 |
-6:00 Vincennes C%sT 1964 Apr 26 2:00
|
|
788 |
-5:00 - EST 1969
|
|
789 |
-5:00 US E%sT 1971
|
|
790 |
-5:00 - EST 2006 Apr 2 2:00
|
|
791 |
-6:00 US C%sT 2007 Nov 4 2:00
|
|
792 |
-5:00 US E%sT
|
|
793 |
#
|
|
794 |
# Perry County, Indiana, switched from eastern to central time in April 2006.
|
|
795 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
|
796 |
Rule Perry 1946 only - Apr lastSun 2:00 1:00 D
|
|
797 |
Rule Perry 1946 only - Sep lastSun 2:00 0 S
|
|
798 |
Rule Perry 1953 1954 - Apr lastSun 2:00 1:00 D
|
|
799 |
Rule Perry 1953 1959 - Sep lastSun 2:00 0 S
|
|
800 |
Rule Perry 1955 only - May 1 0:00 1:00 D
|
|
801 |
Rule Perry 1956 1963 - Apr lastSun 2:00 1:00 D
|
|
802 |
Rule Perry 1960 only - Oct lastSun 2:00 0 S
|
|
803 |
Rule Perry 1961 only - Sep lastSun 2:00 0 S
|
|
804 |
Rule Perry 1962 1963 - Oct lastSun 2:00 0 S
|
|
805 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
806 |
Zone America/Indiana/Tell_City -5:47:03 - LMT 1883 Nov 18 12:12:57
|
|
807 |
-6:00 US C%sT 1946
|
|
808 |
-6:00 Perry C%sT 1964 Apr 26 2:00
|
|
809 |
-5:00 - EST 1969
|
|
810 |
-5:00 US E%sT 1971
|
|
811 |
-5:00 - EST 2006 Apr 2 2:00
|
|
812 |
-6:00 US C%sT
|
|
813 |
#
|
|
814 |
# Pike County, Indiana moved from central to eastern time in 1977,
|
|
815 |
# then switched back in 2006, then switched back again in 2007.
|
|
816 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
|
817 |
Rule Pike 1955 only - May 1 0:00 1:00 D
|
|
818 |
Rule Pike 1955 1960 - Sep lastSun 2:00 0 S
|
|
819 |
Rule Pike 1956 1964 - Apr lastSun 2:00 1:00 D
|
|
820 |
Rule Pike 1961 1964 - Oct lastSun 2:00 0 S
|
|
821 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
822 |
Zone America/Indiana/Petersburg -5:49:07 - LMT 1883 Nov 18 12:10:53
|
|
823 |
-6:00 US C%sT 1955
|
|
824 |
-6:00 Pike C%sT 1965 Apr 25 2:00
|
|
825 |
-5:00 - EST 1966 Oct 30 2:00
|
|
826 |
-6:00 US C%sT 1977 Oct 30 2:00
|
|
827 |
-5:00 - EST 2006 Apr 2 2:00
|
|
828 |
-6:00 US C%sT 2007 Nov 4 2:00
|
|
829 |
-5:00 US E%sT
|
|
830 |
#
|
|
831 |
# Starke County, Indiana moved from central to eastern time in 1991,
|
|
832 |
# then switched back in 2006.
|
|
833 |
# From Arthur David Olson (1991-10-28):
|
|
834 |
# An article on page A3 of the Sunday, 1991-10-27 Washington Post
|
|
835 |
# notes that Starke County switched from Central time to Eastern time as of
|
|
836 |
# 1991-10-27.
|
|
837 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
|
838 |
Rule Starke 1947 1961 - Apr lastSun 2:00 1:00 D
|
|
839 |
Rule Starke 1947 1954 - Sep lastSun 2:00 0 S
|
|
840 |
Rule Starke 1955 1956 - Oct lastSun 2:00 0 S
|
|
841 |
Rule Starke 1957 1958 - Sep lastSun 2:00 0 S
|
|
842 |
Rule Starke 1959 1961 - Oct lastSun 2:00 0 S
|
|
843 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
844 |
Zone America/Indiana/Knox -5:46:30 - LMT 1883 Nov 18 12:13:30
|
|
845 |
-6:00 US C%sT 1947
|
|
846 |
-6:00 Starke C%sT 1962 Apr 29 2:00
|
|
847 |
-5:00 - EST 1963 Oct 27 2:00
|
|
848 |
-6:00 US C%sT 1991 Oct 27 2:00
|
|
849 |
-5:00 - EST 2006 Apr 2 2:00
|
|
850 |
-6:00 US C%sT
|
|
851 |
#
|
|
852 |
# Pulaski County, Indiana, switched from eastern to central time in
|
|
853 |
# April 2006 and then switched back in March 2007.
|
|
854 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
|
855 |
Rule Pulaski 1946 1960 - Apr lastSun 2:00 1:00 D
|
|
856 |
Rule Pulaski 1946 1954 - Sep lastSun 2:00 0 S
|
|
857 |
Rule Pulaski 1955 1956 - Oct lastSun 2:00 0 S
|
|
858 |
Rule Pulaski 1957 1960 - Sep lastSun 2:00 0 S
|
|
859 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
860 |
Zone America/Indiana/Winamac -5:46:25 - LMT 1883 Nov 18 12:13:35
|
|
861 |
-6:00 US C%sT 1946
|
|
862 |
-6:00 Pulaski C%sT 1961 Apr 30 2:00
|
|
863 |
-5:00 - EST 1969
|
|
864 |
-5:00 US E%sT 1971
|
|
865 |
-5:00 - EST 2006 Apr 2 2:00
|
|
866 |
-6:00 US C%sT 2007 Mar 11 2:00
|
|
867 |
-5:00 US E%sT
|
|
868 |
#
|
|
869 |
# Switzerland County, Indiana, did not observe DST from 1973 through 2005.
|
|
870 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
871 |
Zone America/Indiana/Vevay -5:40:16 - LMT 1883 Nov 18 12:19:44
|
|
872 |
-6:00 US C%sT 1954 Apr 25 2:00
|
|
873 |
-5:00 - EST 1969
|
|
874 |
-5:00 US E%sT 1973
|
|
875 |
-5:00 - EST 2006
|
|
876 |
-5:00 US E%sT
|
|
877 |
|
|
878 |
# Part of Kentucky left its clocks alone in 1974.
|
|
879 |
# This also includes Clark, Floyd, and Harrison counties in Indiana.
|
|
880 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
|
881 |
Rule Louisville 1921 only - May 1 2:00 1:00 D
|
|
882 |
Rule Louisville 1921 only - Sep 1 2:00 0 S
|
|
883 |
Rule Louisville 1941 1961 - Apr lastSun 2:00 1:00 D
|
|
884 |
Rule Louisville 1941 only - Sep lastSun 2:00 0 S
|
|
885 |
Rule Louisville 1946 only - Jun 2 2:00 0 S
|
|
886 |
Rule Louisville 1950 1955 - Sep lastSun 2:00 0 S
|
|
887 |
Rule Louisville 1956 1960 - Oct lastSun 2:00 0 S
|
|
888 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
889 |
Zone America/Kentucky/Louisville -5:43:02 - LMT 1883 Nov 18 12:16:58
|
|
890 |
-6:00 US C%sT 1921
|
|
891 |
-6:00 Louisville C%sT 1942
|
|
892 |
-6:00 US C%sT 1946
|
|
893 |
-6:00 Louisville C%sT 1961 Jul 23 2:00
|
|
894 |
-5:00 - EST 1968
|
|
895 |
-5:00 US E%sT 1974 Jan 6 2:00
|
|
896 |
-6:00 1:00 CDT 1974 Oct 27 2:00
|
|
897 |
-5:00 US E%sT
|
|
898 |
#
|
|
899 |
# Wayne County, Kentucky
|
|
900 |
#
|
|
901 |
# From
|
|
902 |
# <a href="http://www.lake-cumberland.com/life/archive/news990129time.shtml">
|
|
903 |
# Lake Cumberland LIFE
|
|
904 |
# </a> (1999-01-29) via WKYM-101.7:
|
|
905 |
# Clinton County has joined Wayne County in asking the DoT to change from
|
|
906 |
# the Central to the Eastern time zone.... The Wayne County government made
|
|
907 |
# the same request in December. And while Russell County officials have not
|
|
908 |
# taken action, the majority of respondents to a poll conducted there in
|
|
909 |
# August indicated they would like to change to "fast time" also.
|
|
910 |
# The three Lake Cumberland counties are the farthest east of any U.S.
|
|
911 |
# location in the Central time zone.
|
|
912 |
#
|
|
913 |
# From Rich Wales (2000-08-29):
|
|
914 |
# After prolonged debate, and despite continuing deep differences of opinion,
|
|
915 |
# Wayne County (central Kentucky) is switching from Central (-0600) to Eastern
|
|
916 |
# (-0500) time. They won't "fall back" this year. See Sara Shipley,
|
|
917 |
# The difference an hour makes, Nando Times (2000-08-29 15:33 -0400).
|
|
918 |
#
|
|
919 |
# From Paul Eggert (2001-07-16):
|
|
920 |
# The final rule was published in the
|
|
921 |
# <a href="http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=2000_register&docid=fr17au00-22">
|
|
922 |
# Federal Register 65, 160 (2000-08-17), page 50154-50158.
|
|
923 |
# </a>
|
|
924 |
#
|
|
925 |
Zone America/Kentucky/Monticello -5:39:24 - LMT 1883 Nov 18 12:20:36
|
|
926 |
-6:00 US C%sT 1946
|
|
927 |
-6:00 - CST 1968
|
|
928 |
-6:00 US C%sT 2000 Oct 29 2:00
|
|
929 |
-5:00 US E%sT
|
|
930 |
|
|
931 |
|
|
932 |
# From Rives McDow (2000-08-30):
|
|
933 |
# Here ... are all the changes in the US since 1985.
|
|
934 |
# Kearny County, KS (put all of county on central;
|
|
935 |
# previously split between MST and CST) ... 1990-10
|
|
936 |
# Starke County, IN (from CST to EST) ... 1991-10
|
|
937 |
# Oliver County, ND (from MST to CST) ... 1992-10
|
|
938 |
# West Wendover, NV (from PST TO MST) ... 1999-10
|
|
939 |
# Wayne County, KY (from CST to EST) ... 2000-10
|
|
940 |
#
|
|
941 |
# From Paul Eggert (2001-07-17):
|
|
942 |
# We don't know where the line used to be within Kearny County, KS,
|
|
943 |
# so omit that change for now.
|
|
944 |
# See America/Indiana/Knox for the Starke County, IN change.
|
|
945 |
# See America/North_Dakota/Center for the Oliver County, ND change.
|
|
946 |
# West Wendover, NV officially switched from Pacific to mountain time on
|
|
947 |
# 1999-10-31. See the
|
|
948 |
# <a href="http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=1999_register&docid=fr21oc99-15">
|
|
949 |
# Federal Register 64, 203 (1999-10-21), page 56705-56707.
|
|
950 |
# </a>
|
|
951 |
# However, the Federal Register says that West Wendover already operated
|
|
952 |
# on mountain time, and the rule merely made this official;
|
|
953 |
# hence a separate tz entry is not needed.
|
|
954 |
|
|
955 |
# Michigan
|
|
956 |
#
|
|
957 |
# From Bob Devine (1988-01-28):
|
|
958 |
# Michigan didn't observe DST from 1968 to 1973.
|
|
959 |
#
|
|
960 |
# From Paul Eggert (1999-03-31):
|
|
961 |
# Shanks writes that Michigan started using standard time on 1885-09-18,
|
|
962 |
# but Howse writes (pp 124-125, referring to Popular Astronomy, 1901-01)
|
|
963 |
# that Detroit kept
|
|
964 |
#
|
|
965 |
# local time until 1900 when the City Council decreed that clocks should
|
|
966 |
# be put back twenty-eight minutes to Central Standard Time. Half the
|
|
967 |
# city obeyed, half refused. After considerable debate, the decision
|
|
968 |
# was rescinded and the city reverted to Sun time. A derisive offer to
|
|
969 |
# erect a sundial in front of the city hall was referred to the
|
|
970 |
# Committee on Sewers. Then, in 1905, Central time was adopted
|
|
971 |
# by city vote.
|
|
972 |
#
|
|
973 |
# This story is too entertaining to be false, so go with Howse over Shanks.
|
|
974 |
#
|
|
975 |
# From Paul Eggert (2001-03-06):
|
20867
|
976 |
# Garland (1927) writes "Cleveland and Detroit advanced their clocks
|
|
977 |
# one hour in 1914." This change is not in Shanks. We have no more
|
15658
|
978 |
# info, so omit this for now.
|
|
979 |
#
|
|
980 |
# Most of Michigan observed DST from 1973 on, but was a bit late in 1975.
|
|
981 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
|
982 |
Rule Detroit 1948 only - Apr lastSun 2:00 1:00 D
|
|
983 |
Rule Detroit 1948 only - Sep lastSun 2:00 0 S
|
|
984 |
Rule Detroit 1967 only - Jun 14 2:00 1:00 D
|
|
985 |
Rule Detroit 1967 only - Oct lastSun 2:00 0 S
|
|
986 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
987 |
Zone America/Detroit -5:32:11 - LMT 1905
|
|
988 |
-6:00 - CST 1915 May 15 2:00
|
|
989 |
-5:00 - EST 1942
|
|
990 |
-5:00 US E%sT 1946
|
|
991 |
-5:00 Detroit E%sT 1973
|
|
992 |
-5:00 US E%sT 1975
|
|
993 |
-5:00 - EST 1975 Apr 27 2:00
|
|
994 |
-5:00 US E%sT
|
|
995 |
#
|
|
996 |
# Dickinson, Gogebic, Iron, and Menominee Counties, Michigan,
|
|
997 |
# switched from EST to CST/CDT in 1973.
|
|
998 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
|
999 |
Rule Menominee 1946 only - Apr lastSun 2:00 1:00 D
|
|
1000 |
Rule Menominee 1946 only - Sep lastSun 2:00 0 S
|
|
1001 |
Rule Menominee 1966 only - Apr lastSun 2:00 1:00 D
|
|
1002 |
Rule Menominee 1966 only - Oct lastSun 2:00 0 S
|
|
1003 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
1004 |
Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00
|
|
1005 |
-6:00 US C%sT 1946
|
|
1006 |
-6:00 Menominee C%sT 1969 Apr 27 2:00
|
|
1007 |
-5:00 - EST 1973 Apr 29 2:00
|
|
1008 |
-6:00 US C%sT
|
|
1009 |
|
|
1010 |
# Navassa
|
|
1011 |
# administered by the US Fish and Wildlife Service
|
|
1012 |
# claimed by US under the provisions of the 1856 Guano Islands Act
|
|
1013 |
# also claimed by Haiti
|
|
1014 |
# occupied 1857/1900 by the Navassa Phosphate Co
|
|
1015 |
# US lighthouse 1917/1996-09
|
|
1016 |
# currently uninhabited
|
20867
|
1017 |
# see Mark Fineman, "An Isle Rich in Guano and Discord",
|
15658
|
1018 |
# _Los Angeles Times_ (1998-11-10), A1, A10; it cites
|
|
1019 |
# Jimmy Skaggs, _The Great Guano Rush_ (1994).
|
|
1020 |
|
|
1021 |
################################################################################
|
|
1022 |
|
|
1023 |
|
|
1024 |
# From Paul Eggert (2006-03-22):
|
|
1025 |
# A good source for time zone historical data outside the U.S. is
|
|
1026 |
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
|
|
1027 |
# San Diego: ACS Publications, Inc. (2003).
|
|
1028 |
#
|
|
1029 |
# Gwillim Law writes that a good source
|
|
1030 |
# for recent time zone data is the International Air Transport
|
|
1031 |
# Association's Standard Schedules Information Manual (IATA SSIM),
|
|
1032 |
# published semiannually. Law sent in several helpful summaries
|
|
1033 |
# of the IATA's data after 1990.
|
|
1034 |
#
|
|
1035 |
# Except where otherwise noted, Shanks & Pottenger is the source for
|
|
1036 |
# entries through 1990, and IATA SSIM is the source for entries afterwards.
|
|
1037 |
#
|
|
1038 |
# Other sources occasionally used include:
|
|
1039 |
#
|
|
1040 |
# Edward W. Whitman, World Time Differences,
|
|
1041 |
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated),
|
|
1042 |
# which I found in the UCLA library.
|
|
1043 |
#
|
|
1044 |
# <a href="http://www.pettswoodvillage.co.uk/Daylight_Savings_William_Willett.pdf">
|
|
1045 |
# William Willett, The Waste of Daylight, 19th edition
|
|
1046 |
# </a> (1914-03)
|
|
1047 |
#
|
17464
|
1048 |
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
|
|
1049 |
# <http://www.jstor.org/stable/1774359>.
|
|
1050 |
#
|
20867
|
1051 |
# See the 'europe' file for Greenland.
|
15658
|
1052 |
|
|
1053 |
# Canada
|
|
1054 |
|
|
1055 |
# From Alain LaBont<e'> (1994-11-14):
|
|
1056 |
# I post here the time zone abbreviations standardized in Canada
|
|
1057 |
# for both English and French in the CAN/CSA-Z234.4-89 standard....
|
|
1058 |
#
|
|
1059 |
# UTC Standard time Daylight savings time
|
|
1060 |
# offset French English French English
|
|
1061 |
# -2:30 - - HAT NDT
|
|
1062 |
# -3 - - HAA ADT
|
|
1063 |
# -3:30 HNT NST - -
|
|
1064 |
# -4 HNA AST HAE EDT
|
|
1065 |
# -5 HNE EST HAC CDT
|
|
1066 |
# -6 HNC CST HAR MDT
|
|
1067 |
# -7 HNR MST HAP PDT
|
|
1068 |
# -8 HNP PST HAY YDT
|
|
1069 |
# -9 HNY YST - -
|
|
1070 |
#
|
|
1071 |
# HN: Heure Normale ST: Standard Time
|
|
1072 |
# HA: Heure Avanc<e'>e DT: Daylight saving Time
|
|
1073 |
#
|
|
1074 |
# A: de l'Atlantique Atlantic
|
|
1075 |
# C: du Centre Central
|
|
1076 |
# E: de l'Est Eastern
|
|
1077 |
# M: Mountain
|
|
1078 |
# N: Newfoundland
|
|
1079 |
# P: du Pacifique Pacific
|
|
1080 |
# R: des Rocheuses
|
|
1081 |
# T: de Terre-Neuve
|
|
1082 |
# Y: du Yukon Yukon
|
|
1083 |
#
|
|
1084 |
# From Paul Eggert (1994-11-22):
|
|
1085 |
# Alas, this sort of thing must be handled by localization software.
|
|
1086 |
|
|
1087 |
# Unless otherwise specified, the data for Canada are all from Shanks
|
|
1088 |
# & Pottenger.
|
|
1089 |
|
|
1090 |
# From Chris Walton (2006-04-01, 2006-04-25, 2006-06-26, 2007-01-31,
|
|
1091 |
# 2007-03-01):
|
|
1092 |
# The British Columbia government announced yesterday that it will
|
|
1093 |
# adjust daylight savings next year to align with changes in the
|
|
1094 |
# U.S. and the rest of Canada....
|
|
1095 |
# http://www2.news.gov.bc.ca/news_releases_2005-2009/2006AG0014-000330.htm
|
|
1096 |
# ...
|
|
1097 |
# Nova Scotia
|
|
1098 |
# Daylight saving time will be extended by four weeks starting in 2007....
|
|
1099 |
# http://www.gov.ns.ca/just/regulations/rg2/2006/ma1206.pdf
|
|
1100 |
#
|
|
1101 |
# [For New Brunswick] the new legislation dictates that the time change is to
|
|
1102 |
# be done at 02:00 instead of 00:01.
|
|
1103 |
# http://www.gnb.ca/0062/acts/BBA-2006/Chap-19.pdf
|
|
1104 |
# ...
|
|
1105 |
# Manitoba has traditionally changed the clock every fall at 03:00.
|
|
1106 |
# As of 2006, the transition is to take place one hour earlier at 02:00.
|
|
1107 |
# http://web2.gov.mb.ca/laws/statutes/ccsm/o030e.php
|
|
1108 |
# ...
|
|
1109 |
# [Alberta, Ontario, Quebec] will follow US rules.
|
|
1110 |
# http://www.qp.gov.ab.ca/documents/spring/CH03_06.CFM
|
|
1111 |
# http://www.e-laws.gov.on.ca/DBLaws/Source/Regs/English/2006/R06111_e.htm
|
|
1112 |
# http://www2.publicationsduquebec.gouv.qc.ca/dynamicSearch/telecharge.php?type=5&file=2006C39A.PDF
|
|
1113 |
# ...
|
|
1114 |
# P.E.I. will follow US rules....
|
|
1115 |
# http://www.assembly.pe.ca/bills/pdf_chapter/62/3/chapter-41.pdf
|
|
1116 |
# ...
|
|
1117 |
# Province of Newfoundland and Labrador....
|
|
1118 |
# http://www.hoa.gov.nl.ca/hoa/bills/Bill0634.htm
|
|
1119 |
# ...
|
|
1120 |
# Yukon
|
|
1121 |
# http://www.gov.yk.ca/legislation/regs/oic2006_127.pdf
|
|
1122 |
# ...
|
|
1123 |
# N.W.T. will follow US rules. Whoever maintains the government web site
|
|
1124 |
# does not seem to believe in bookmarks. To see the news release, click the
|
|
1125 |
# following link and search for "Daylight Savings Time Change". Press the
|
|
1126 |
# "Daylight Savings Time Change" link; it will fire off a popup using
|
|
1127 |
# JavaScript.
|
|
1128 |
# http://www.exec.gov.nt.ca/currentnews/currentPR.asp?mode=archive
|
|
1129 |
# ...
|
|
1130 |
# Nunavut
|
|
1131 |
# An amendment to the Interpretation Act was registered on February 19/2007....
|
|
1132 |
# http://action.attavik.ca/home/justice-gn/attach/2007/gaz02part2.pdf
|
|
1133 |
|
|
1134 |
# From Paul Eggert (2006-04-25):
|
|
1135 |
# H. David Matthews and Mary Vincent's map
|
|
1136 |
# <a href="http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp">
|
|
1137 |
# "It's about TIME", _Canadian Geographic_ (September-October 1998)
|
|
1138 |
# </a> contains detailed boundaries for regions observing nonstandard
|
|
1139 |
# time and daylight saving time arrangements in Canada circa 1998.
|
|
1140 |
#
|
|
1141 |
# INMS, the Institute for National Measurement Standards in Ottawa, has <a
|
|
1142 |
# href="http://inms-ienm.nrc-cnrc.gc.ca/en/time_services/daylight_saving_e.php">
|
|
1143 |
# information about standard and daylight saving time zones in Canada.
|
|
1144 |
# </a> (updated periodically).
|
|
1145 |
# Its unofficial information is often taken from Matthews and Vincent.
|
|
1146 |
|
|
1147 |
# From Paul Eggert (2006-06-27):
|
|
1148 |
# For now, assume all of DST-observing Canada will fall into line with the
|
|
1149 |
# new US DST rules,
|
|
1150 |
|
|
1151 |
# From Chris Walton (2011-12-01)
|
|
1152 |
# In the first of Tammy Hardwick's articles
|
|
1153 |
# <a href="http://www.ilovecreston.com/?p=articles&t=spec&ar=260">
|
|
1154 |
# http://www.ilovecreston.com/?p=articles&t=spec&ar=260
|
|
1155 |
# </a>
|
|
1156 |
# she quotes the Friday November 1/1918 edition of the Creston Review.
|
|
1157 |
# The quote includes these two statements:
|
|
1158 |
# 'Sunday the CPR went back to the old system of time...'
|
|
1159 |
# '... The daylight saving scheme was dropped all over Canada at the same time,'
|
|
1160 |
# These statements refer to a transition from daylight time to standard time
|
|
1161 |
# that occurred nationally on Sunday October 27/1918. This transition was
|
|
1162 |
# also documented in the Saturday October 26/1918 edition of the Toronto Star.
|
|
1163 |
|
|
1164 |
# In light of that evidence, we alter the date from the earlier believed
|
|
1165 |
# Oct 31, to Oct 27, 1918 (and Sunday is a more likely transition day
|
|
1166 |
# than Thursday) in all Canadian rulesets.
|
|
1167 |
|
|
1168 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
1169 |
Rule Canada 1918 only - Apr 14 2:00 1:00 D
|
|
1170 |
Rule Canada 1918 only - Oct 27 2:00 0 S
|
|
1171 |
Rule Canada 1942 only - Feb 9 2:00 1:00 W # War
|
|
1172 |
Rule Canada 1945 only - Aug 14 23:00u 1:00 P # Peace
|
|
1173 |
Rule Canada 1945 only - Sep 30 2:00 0 S
|
|
1174 |
Rule Canada 1974 1986 - Apr lastSun 2:00 1:00 D
|
|
1175 |
Rule Canada 1974 2006 - Oct lastSun 2:00 0 S
|
|
1176 |
Rule Canada 1987 2006 - Apr Sun>=1 2:00 1:00 D
|
|
1177 |
Rule Canada 2007 max - Mar Sun>=8 2:00 1:00 D
|
|
1178 |
Rule Canada 2007 max - Nov Sun>=1 2:00 0 S
|
|
1179 |
|
|
1180 |
|
|
1181 |
# Newfoundland and Labrador
|
|
1182 |
|
|
1183 |
# From Paul Eggert (2000-10-02):
|
|
1184 |
# Matthews and Vincent (1998) write that Labrador should use NST/NDT,
|
|
1185 |
# but the only part of Labrador that follows the rules is the
|
|
1186 |
# southeast corner, including Port Hope Simpson and Mary's Harbour,
|
|
1187 |
# but excluding, say, Black Tickle.
|
|
1188 |
|
|
1189 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
1190 |
Rule StJohns 1917 only - Apr 8 2:00 1:00 D
|
|
1191 |
Rule StJohns 1917 only - Sep 17 2:00 0 S
|
|
1192 |
# Whitman gives 1919 Apr 5 and 1920 Apr 5; go with Shanks & Pottenger.
|
|
1193 |
Rule StJohns 1919 only - May 5 23:00 1:00 D
|
|
1194 |
Rule StJohns 1919 only - Aug 12 23:00 0 S
|
|
1195 |
# For 1931-1935 Whitman gives Apr same date; go with Shanks & Pottenger.
|
|
1196 |
Rule StJohns 1920 1935 - May Sun>=1 23:00 1:00 D
|
|
1197 |
Rule StJohns 1920 1935 - Oct lastSun 23:00 0 S
|
|
1198 |
# For 1936-1941 Whitman gives May Sun>=8 and Oct Sun>=1; go with Shanks &
|
|
1199 |
# Pottenger.
|
|
1200 |
Rule StJohns 1936 1941 - May Mon>=9 0:00 1:00 D
|
|
1201 |
Rule StJohns 1936 1941 - Oct Mon>=2 0:00 0 S
|
|
1202 |
# Whitman gives the following transitions:
|
|
1203 |
# 1942 03-01/12-31, 1943 05-30/09-05, 1944 07-10/09-02, 1945 01-01/10-07
|
|
1204 |
# but go with Shanks & Pottenger and assume they used Canadian rules.
|
|
1205 |
# For 1946-9 Whitman gives May 5,4,9,1 - Oct 1,5,3,2, and for 1950 he gives
|
|
1206 |
# Apr 30 - Sep 24; go with Shanks & Pottenger.
|
|
1207 |
Rule StJohns 1946 1950 - May Sun>=8 2:00 1:00 D
|
|
1208 |
Rule StJohns 1946 1950 - Oct Sun>=2 2:00 0 S
|
|
1209 |
Rule StJohns 1951 1986 - Apr lastSun 2:00 1:00 D
|
|
1210 |
Rule StJohns 1951 1959 - Sep lastSun 2:00 0 S
|
|
1211 |
Rule StJohns 1960 1986 - Oct lastSun 2:00 0 S
|
|
1212 |
# From Paul Eggert (2000-10-02):
|
|
1213 |
# INMS (2000-09-12) says that, since 1988 at least, Newfoundland switches
|
|
1214 |
# at 00:01 local time. For now, assume it started in 1987.
|
|
1215 |
|
|
1216 |
# From Michael Pelley (2011-09-12):
|
|
1217 |
# We received today, Monday, September 12, 2011, notification that the
|
|
1218 |
# changes to the Newfoundland Standard Time Act have been proclaimed.
|
|
1219 |
# The change in the Act stipulates that the change from Daylight Savings
|
|
1220 |
# Time to Standard Time and from Standard Time to Daylight Savings Time
|
|
1221 |
# now occurs at 2:00AM.
|
|
1222 |
# ...
|
|
1223 |
# <a href="http://www.assembly.nl.ca/legislation/sr/annualstatutes/2011/1106.chp.htm">
|
|
1224 |
# http://www.assembly.nl.ca/legislation/sr/annualstatutes/2011/1106.chp.htm
|
|
1225 |
# </a>
|
|
1226 |
# ...
|
|
1227 |
# MICHAEL PELLEY | Manager of Enterprise Architecture - Solution Delivery
|
|
1228 |
# Office of the Chief Information Officer
|
|
1229 |
# Executive Council
|
|
1230 |
# Government of Newfoundland & Labrador
|
|
1231 |
|
|
1232 |
Rule StJohns 1987 only - Apr Sun>=1 0:01 1:00 D
|
|
1233 |
Rule StJohns 1987 2006 - Oct lastSun 0:01 0 S
|
|
1234 |
Rule StJohns 1988 only - Apr Sun>=1 0:01 2:00 DD
|
|
1235 |
Rule StJohns 1989 2006 - Apr Sun>=1 0:01 1:00 D
|
|
1236 |
Rule StJohns 2007 2011 - Mar Sun>=8 0:01 1:00 D
|
|
1237 |
Rule StJohns 2007 2010 - Nov Sun>=1 0:01 0 S
|
|
1238 |
#
|
|
1239 |
# St John's has an apostrophe, but Posix file names can't have apostrophes.
|
|
1240 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
1241 |
Zone America/St_Johns -3:30:52 - LMT 1884
|
|
1242 |
-3:30:52 StJohns N%sT 1918
|
|
1243 |
-3:30:52 Canada N%sT 1919
|
|
1244 |
-3:30:52 StJohns N%sT 1935 Mar 30
|
|
1245 |
-3:30 StJohns N%sT 1942 May 11
|
|
1246 |
-3:30 Canada N%sT 1946
|
|
1247 |
-3:30 StJohns N%sT 2011 Nov
|
|
1248 |
-3:30 Canada N%sT
|
|
1249 |
|
|
1250 |
# most of east Labrador
|
|
1251 |
|
20867
|
1252 |
# The name 'Happy Valley-Goose Bay' is too long; use 'Goose Bay'.
|
15658
|
1253 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
1254 |
Zone America/Goose_Bay -4:01:40 - LMT 1884 # Happy Valley-Goose Bay
|
|
1255 |
-3:30:52 - NST 1918
|
|
1256 |
-3:30:52 Canada N%sT 1919
|
|
1257 |
-3:30:52 - NST 1935 Mar 30
|
|
1258 |
-3:30 - NST 1936
|
|
1259 |
-3:30 StJohns N%sT 1942 May 11
|
|
1260 |
-3:30 Canada N%sT 1946
|
|
1261 |
-3:30 StJohns N%sT 1966 Mar 15 2:00
|
|
1262 |
-4:00 StJohns A%sT 2011 Nov
|
|
1263 |
-4:00 Canada A%sT
|
|
1264 |
|
|
1265 |
|
|
1266 |
# west Labrador, Nova Scotia, Prince Edward I
|
|
1267 |
|
|
1268 |
# From Paul Eggert (2006-03-22):
|
|
1269 |
# Shanks & Pottenger write that since 1970 most of this region has been like
|
|
1270 |
# Halifax. Many locales did not observe peacetime DST until 1972;
|
|
1271 |
# Glace Bay, NS is the largest that we know of.
|
|
1272 |
# Shanks & Pottenger also write that Liverpool, NS was the only town
|
|
1273 |
# in Canada to observe DST in 1971 but not 1970; for now we'll assume
|
|
1274 |
# this is a typo.
|
|
1275 |
|
|
1276 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
1277 |
Rule Halifax 1916 only - Apr 1 0:00 1:00 D
|
|
1278 |
Rule Halifax 1916 only - Oct 1 0:00 0 S
|
|
1279 |
Rule Halifax 1920 only - May 9 0:00 1:00 D
|
|
1280 |
Rule Halifax 1920 only - Aug 29 0:00 0 S
|
|
1281 |
Rule Halifax 1921 only - May 6 0:00 1:00 D
|
|
1282 |
Rule Halifax 1921 1922 - Sep 5 0:00 0 S
|
|
1283 |
Rule Halifax 1922 only - Apr 30 0:00 1:00 D
|
|
1284 |
Rule Halifax 1923 1925 - May Sun>=1 0:00 1:00 D
|
|
1285 |
Rule Halifax 1923 only - Sep 4 0:00 0 S
|
|
1286 |
Rule Halifax 1924 only - Sep 15 0:00 0 S
|
|
1287 |
Rule Halifax 1925 only - Sep 28 0:00 0 S
|
|
1288 |
Rule Halifax 1926 only - May 16 0:00 1:00 D
|
|
1289 |
Rule Halifax 1926 only - Sep 13 0:00 0 S
|
|
1290 |
Rule Halifax 1927 only - May 1 0:00 1:00 D
|
|
1291 |
Rule Halifax 1927 only - Sep 26 0:00 0 S
|
|
1292 |
Rule Halifax 1928 1931 - May Sun>=8 0:00 1:00 D
|
|
1293 |
Rule Halifax 1928 only - Sep 9 0:00 0 S
|
|
1294 |
Rule Halifax 1929 only - Sep 3 0:00 0 S
|
|
1295 |
Rule Halifax 1930 only - Sep 15 0:00 0 S
|
|
1296 |
Rule Halifax 1931 1932 - Sep Mon>=24 0:00 0 S
|
|
1297 |
Rule Halifax 1932 only - May 1 0:00 1:00 D
|
|
1298 |
Rule Halifax 1933 only - Apr 30 0:00 1:00 D
|
|
1299 |
Rule Halifax 1933 only - Oct 2 0:00 0 S
|
|
1300 |
Rule Halifax 1934 only - May 20 0:00 1:00 D
|
|
1301 |
Rule Halifax 1934 only - Sep 16 0:00 0 S
|
|
1302 |
Rule Halifax 1935 only - Jun 2 0:00 1:00 D
|
|
1303 |
Rule Halifax 1935 only - Sep 30 0:00 0 S
|
|
1304 |
Rule Halifax 1936 only - Jun 1 0:00 1:00 D
|
|
1305 |
Rule Halifax 1936 only - Sep 14 0:00 0 S
|
|
1306 |
Rule Halifax 1937 1938 - May Sun>=1 0:00 1:00 D
|
|
1307 |
Rule Halifax 1937 1941 - Sep Mon>=24 0:00 0 S
|
|
1308 |
Rule Halifax 1939 only - May 28 0:00 1:00 D
|
|
1309 |
Rule Halifax 1940 1941 - May Sun>=1 0:00 1:00 D
|
|
1310 |
Rule Halifax 1946 1949 - Apr lastSun 2:00 1:00 D
|
|
1311 |
Rule Halifax 1946 1949 - Sep lastSun 2:00 0 S
|
|
1312 |
Rule Halifax 1951 1954 - Apr lastSun 2:00 1:00 D
|
|
1313 |
Rule Halifax 1951 1954 - Sep lastSun 2:00 0 S
|
|
1314 |
Rule Halifax 1956 1959 - Apr lastSun 2:00 1:00 D
|
|
1315 |
Rule Halifax 1956 1959 - Sep lastSun 2:00 0 S
|
|
1316 |
Rule Halifax 1962 1973 - Apr lastSun 2:00 1:00 D
|
|
1317 |
Rule Halifax 1962 1973 - Oct lastSun 2:00 0 S
|
|
1318 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
1319 |
Zone America/Halifax -4:14:24 - LMT 1902 Jun 15
|
|
1320 |
-4:00 Halifax A%sT 1918
|
|
1321 |
-4:00 Canada A%sT 1919
|
|
1322 |
-4:00 Halifax A%sT 1942 Feb 9 2:00s
|
|
1323 |
-4:00 Canada A%sT 1946
|
|
1324 |
-4:00 Halifax A%sT 1974
|
|
1325 |
-4:00 Canada A%sT
|
|
1326 |
Zone America/Glace_Bay -3:59:48 - LMT 1902 Jun 15
|
|
1327 |
-4:00 Canada A%sT 1953
|
|
1328 |
-4:00 Halifax A%sT 1954
|
|
1329 |
-4:00 - AST 1972
|
|
1330 |
-4:00 Halifax A%sT 1974
|
|
1331 |
-4:00 Canada A%sT
|
|
1332 |
|
|
1333 |
# New Brunswick
|
|
1334 |
|
|
1335 |
# From Paul Eggert (2007-01-31):
|
|
1336 |
# The Time Definition Act <http://www.gnb.ca/0062/PDF-acts/t-06.pdf>
|
|
1337 |
# says they changed at 00:01 through 2006, and
|
|
1338 |
# <http://www.canlii.org/nb/laws/sta/t-6/20030127/whole.html> makes it
|
|
1339 |
# clear that this was the case since at least 1993.
|
|
1340 |
# For now, assume it started in 1993.
|
|
1341 |
|
|
1342 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
1343 |
Rule Moncton 1933 1935 - Jun Sun>=8 1:00 1:00 D
|
|
1344 |
Rule Moncton 1933 1935 - Sep Sun>=8 1:00 0 S
|
|
1345 |
Rule Moncton 1936 1938 - Jun Sun>=1 1:00 1:00 D
|
|
1346 |
Rule Moncton 1936 1938 - Sep Sun>=1 1:00 0 S
|
|
1347 |
Rule Moncton 1939 only - May 27 1:00 1:00 D
|
|
1348 |
Rule Moncton 1939 1941 - Sep Sat>=21 1:00 0 S
|
|
1349 |
Rule Moncton 1940 only - May 19 1:00 1:00 D
|
|
1350 |
Rule Moncton 1941 only - May 4 1:00 1:00 D
|
|
1351 |
Rule Moncton 1946 1972 - Apr lastSun 2:00 1:00 D
|
|
1352 |
Rule Moncton 1946 1956 - Sep lastSun 2:00 0 S
|
|
1353 |
Rule Moncton 1957 1972 - Oct lastSun 2:00 0 S
|
|
1354 |
Rule Moncton 1993 2006 - Apr Sun>=1 0:01 1:00 D
|
|
1355 |
Rule Moncton 1993 2006 - Oct lastSun 0:01 0 S
|
|
1356 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
1357 |
Zone America/Moncton -4:19:08 - LMT 1883 Dec 9
|
|
1358 |
-5:00 - EST 1902 Jun 15
|
|
1359 |
-4:00 Canada A%sT 1933
|
|
1360 |
-4:00 Moncton A%sT 1942
|
|
1361 |
-4:00 Canada A%sT 1946
|
|
1362 |
-4:00 Moncton A%sT 1973
|
|
1363 |
-4:00 Canada A%sT 1993
|
|
1364 |
-4:00 Moncton A%sT 2007
|
|
1365 |
-4:00 Canada A%sT
|
|
1366 |
|
|
1367 |
# Quebec
|
|
1368 |
|
20867
|
1369 |
# From Paul Eggert (2013-08-30):
|
|
1370 |
# Since 1970 most of Quebec has been like Toronto.
|
|
1371 |
# However, because earlier versions of the tz database mistakenly relied on data
|
|
1372 |
# from Shanks & Pottenger saying that Quebec differed from Ontario after 1970,
|
|
1373 |
# a separate entry was created for most of Quebec. We're loath to lose
|
|
1374 |
# its pre-1970 info, even though the tz database is normally limited to
|
|
1375 |
# zones that differ after 1970, so keep this otherwise out-of-scope entry.
|
15658
|
1376 |
|
|
1377 |
# Matthews and Vincent (1998) also write that Quebec east of the -63
|
|
1378 |
# meridian is supposed to observe AST, but residents as far east as
|
|
1379 |
# Natashquan use EST/EDT, and residents east of Natashquan use AST.
|
20867
|
1380 |
# The Quebec department of justice writes in
|
|
1381 |
# "The situation in Minganie and Basse-Cote-Nord"
|
|
1382 |
# http://www.justice.gouv.qc.ca/english/publications/generale/temps-minganie-a.htm
|
|
1383 |
# that the coastal strip from just east of Natashquan to Blanc-Sablon
|
|
1384 |
# observes Atlantic standard time all year round.
|
|
1385 |
# http://www.assnat.qc.ca/Media/Process.aspx?MediaId=ANQ.Vigie.Bll.DocumentGenerique_8845en
|
15658
|
1386 |
# says this common practice was codified into law as of 2007.
|
|
1387 |
# For lack of better info, guess this practice began around 1970, contra to
|
|
1388 |
# Shanks & Pottenger who have this region observing AST/ADT.
|
20867
|
1389 |
# for post-1970 data America/Puerto_Rico.
|
15658
|
1390 |
|
|
1391 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
1392 |
Rule Mont 1917 only - Mar 25 2:00 1:00 D
|
|
1393 |
Rule Mont 1917 only - Apr 24 0:00 0 S
|
|
1394 |
Rule Mont 1919 only - Mar 31 2:30 1:00 D
|
|
1395 |
Rule Mont 1919 only - Oct 25 2:30 0 S
|
|
1396 |
Rule Mont 1920 only - May 2 2:30 1:00 D
|
|
1397 |
Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S
|
|
1398 |
Rule Mont 1921 only - May 1 2:00 1:00 D
|
|
1399 |
Rule Mont 1922 only - Apr 30 2:00 1:00 D
|
|
1400 |
Rule Mont 1924 only - May 17 2:00 1:00 D
|
|
1401 |
Rule Mont 1924 1926 - Sep lastSun 2:30 0 S
|
|
1402 |
Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D
|
|
1403 |
# The 1927-to-1937 rules can be expressed more simply as
|
|
1404 |
# Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D
|
|
1405 |
# Rule Mont 1927 1937 - Sep lastSat 24:00 0 S
|
|
1406 |
# The rules below avoid use of 24:00
|
|
1407 |
# (which pre-1998 versions of zic cannot handle).
|
|
1408 |
Rule Mont 1927 only - May 1 0:00 1:00 D
|
|
1409 |
Rule Mont 1927 1932 - Sep lastSun 0:00 0 S
|
|
1410 |
Rule Mont 1928 1931 - Apr lastSun 0:00 1:00 D
|
|
1411 |
Rule Mont 1932 only - May 1 0:00 1:00 D
|
|
1412 |
Rule Mont 1933 1940 - Apr lastSun 0:00 1:00 D
|
|
1413 |
Rule Mont 1933 only - Oct 1 0:00 0 S
|
|
1414 |
Rule Mont 1934 1939 - Sep lastSun 0:00 0 S
|
|
1415 |
Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D
|
|
1416 |
Rule Mont 1945 1948 - Sep lastSun 2:00 0 S
|
|
1417 |
Rule Mont 1949 1950 - Oct lastSun 2:00 0 S
|
|
1418 |
Rule Mont 1951 1956 - Sep lastSun 2:00 0 S
|
|
1419 |
Rule Mont 1957 1973 - Oct lastSun 2:00 0 S
|
|
1420 |
|
|
1421 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
1422 |
Zone America/Blanc-Sablon -3:48:28 - LMT 1884
|
|
1423 |
-4:00 Canada A%sT 1970
|
|
1424 |
-4:00 - AST
|
|
1425 |
Zone America/Montreal -4:54:16 - LMT 1884
|
|
1426 |
-5:00 Mont E%sT 1918
|
|
1427 |
-5:00 Canada E%sT 1919
|
|
1428 |
-5:00 Mont E%sT 1942 Feb 9 2:00s
|
|
1429 |
-5:00 Canada E%sT 1946
|
|
1430 |
-5:00 Mont E%sT 1974
|
|
1431 |
-5:00 Canada E%sT
|
|
1432 |
|
|
1433 |
# Ontario
|
|
1434 |
|
|
1435 |
# From Paul Eggert (2006-07-09):
|
|
1436 |
# Shanks & Pottenger write that since 1970 most of Ontario has been like
|
|
1437 |
# Toronto.
|
|
1438 |
# Thunder Bay skipped DST in 1973.
|
|
1439 |
# Many smaller locales did not observe peacetime DST until 1974;
|
|
1440 |
# Nipigon (EST) and Rainy River (CST) are the largest that we know of.
|
|
1441 |
# Far west Ontario is like Winnipeg; far east Quebec is like Halifax.
|
|
1442 |
|
|
1443 |
# From Mark Brader (2003-07-26):
|
|
1444 |
# [According to the Toronto Star] Orillia, Ontario, adopted DST
|
|
1445 |
# effective Saturday, 1912-06-22, 22:00; the article mentions that
|
|
1446 |
# Port Arthur (now part of Thunder Bay, Ontario) as well as Moose Jaw
|
|
1447 |
# have already done so. In Orillia DST was to run until Saturday,
|
|
1448 |
# 1912-08-31 (no time mentioned), but it was met with considerable
|
|
1449 |
# hostility from certain segments of the public, and was revoked after
|
|
1450 |
# only two weeks -- I copied it as Saturday, 1912-07-07, 22:00, but
|
|
1451 |
# presumably that should be -07-06. (1912-06-19, -07-12; also letters
|
|
1452 |
# earlier in June).
|
|
1453 |
#
|
|
1454 |
# Kenora, Ontario, was to abandon DST on 1914-06-01 (-05-21).
|
|
1455 |
|
|
1456 |
# From Paul Eggert (1997-10-17):
|
|
1457 |
# Mark Brader writes that an article in the 1997-10-14 Toronto Star
|
|
1458 |
# says that Atikokan, Ontario currently does not observe DST,
|
|
1459 |
# but will vote on 11-10 whether to use EST/EDT.
|
|
1460 |
# He also writes that the
|
|
1461 |
# <a href="http://www.gov.on.ca/MBS/english/publications/statregs/conttext.html">
|
|
1462 |
# Ontario Time Act (1990, Chapter T.9)
|
|
1463 |
# </a>
|
|
1464 |
# says that Ontario east of 90W uses EST/EDT, and west of 90W uses CST/CDT.
|
|
1465 |
# Officially Atikokan is therefore on CST/CDT, and most likely this report
|
|
1466 |
# concerns a non-official time observed as a matter of local practice.
|
|
1467 |
#
|
|
1468 |
# From Paul Eggert (2000-10-02):
|
|
1469 |
# Matthews and Vincent (1998) write that Atikokan, Pickle Lake, and
|
|
1470 |
# New Osnaburgh observe CST all year, that Big Trout Lake observes
|
|
1471 |
# CST/CDT, and that Upsala and Shebandowan observe EST/EDT, all in
|
|
1472 |
# violation of the official Ontario rules.
|
|
1473 |
#
|
|
1474 |
# From Paul Eggert (2006-07-09):
|
|
1475 |
# Chris Walton (2006-07-06) mentioned an article by Stephanie MacLellan in the
|
|
1476 |
# 2005-07-21 Chronicle-Journal, which said:
|
|
1477 |
#
|
|
1478 |
# The clocks in Atikokan stay set on standard time year-round.
|
|
1479 |
# This means they spend about half the time on central time and
|
|
1480 |
# the other half on eastern time.
|
|
1481 |
#
|
|
1482 |
# For the most part, the system works, Mayor Dennis Brown said.
|
|
1483 |
#
|
|
1484 |
# "The majority of businesses in Atikokan deal more with Eastern
|
|
1485 |
# Canada, but there are some that deal with Western Canada," he
|
|
1486 |
# said. "I don't see any changes happening here."
|
|
1487 |
#
|
|
1488 |
# Walton also writes "Supposedly Pickle Lake and Mishkeegogamang
|
|
1489 |
# [New Osnaburgh] follow the same practice."
|
|
1490 |
|
|
1491 |
# From Garry McKinnon (2006-07-14) via Chris Walton:
|
|
1492 |
# I chatted with a member of my board who has an outstanding memory
|
|
1493 |
# and a long history in Atikokan (and in the telecom industry) and he
|
|
1494 |
# can say for certain that Atikokan has been practicing the current
|
|
1495 |
# time keeping since 1952, at least.
|
|
1496 |
|
|
1497 |
# From Paul Eggert (2006-07-17):
|
|
1498 |
# Shanks & Pottenger say that Atikokan has agreed with Rainy River
|
|
1499 |
# ever since standard time was introduced, but the information from
|
|
1500 |
# McKinnon sounds more authoritative. For now, assume that Atikokan
|
|
1501 |
# switched to EST immediately after WWII era daylight saving time
|
|
1502 |
# ended. This matches the old (less-populous) America/Coral_Harbour
|
|
1503 |
# entry since our cutoff date of 1970, so we can move
|
|
1504 |
# America/Coral_Harbour to the 'backward' file.
|
|
1505 |
|
|
1506 |
# From Mark Brader (2010-03-06):
|
|
1507 |
#
|
|
1508 |
# Currently the database has:
|
|
1509 |
#
|
|
1510 |
# # Ontario
|
|
1511 |
#
|
|
1512 |
# # From Paul Eggert (2006-07-09):
|
|
1513 |
# # Shanks & Pottenger write that since 1970 most of Ontario has been like
|
|
1514 |
# # Toronto.
|
|
1515 |
# # Thunder Bay skipped DST in 1973.
|
|
1516 |
# # Many smaller locales did not observe peacetime DST until 1974;
|
|
1517 |
# # Nipigon (EST) and Rainy River (CST) are the largest that we know of.
|
|
1518 |
#
|
|
1519 |
# In the (Toronto) Globe and Mail for Saturday, 1955-09-24, in the bottom
|
|
1520 |
# right corner of page 1, it says that Toronto will return to standard
|
|
1521 |
# time at 2 am Sunday morning (which agrees with the database), and that:
|
|
1522 |
#
|
|
1523 |
# The one-hour setback will go into effect throughout most of Ontario,
|
|
1524 |
# except in areas like Windsor which remains on standard time all year.
|
|
1525 |
#
|
|
1526 |
# Windsor is, of course, a lot larger than Nipigon.
|
|
1527 |
#
|
|
1528 |
# I only came across this incidentally. I don't know if Windsor began
|
|
1529 |
# observing DST when Detroit did, or in 1974, or on some other date.
|
|
1530 |
#
|
|
1531 |
# By the way, the article continues by noting that:
|
|
1532 |
#
|
|
1533 |
# Some cities in the United States have pushed the deadline back
|
|
1534 |
# three weeks and will change over from daylight saving in October.
|
|
1535 |
|
|
1536 |
# From Arthur David Olson (2010-07-17):
|
|
1537 |
#
|
|
1538 |
# "Standard Time and Time Zones in Canada" appeared in
|
|
1539 |
# The Journal of The Royal Astronomical Society of Canada,
|
|
1540 |
# volume 26, number 2 (February 1932) and, as of 2010-07-17,
|
|
1541 |
# was available at
|
|
1542 |
# <a href="http://adsabs.harvard.edu/full/1932JRASC..26...49S">
|
|
1543 |
# http://adsabs.harvard.edu/full/1932JRASC..26...49S
|
|
1544 |
# </a>
|
|
1545 |
#
|
|
1546 |
# It includes the text below (starting on page 57):
|
|
1547 |
#
|
|
1548 |
# A list of the places in Canada using daylight saving time would
|
|
1549 |
# require yearly revision. From information kindly furnished by
|
|
1550 |
# the provincial governments and by the postmasters in many cities
|
|
1551 |
# and towns, it is found that the following places used daylight sav-
|
|
1552 |
# ing in 1930. The information for the province of Quebec is definite,
|
|
1553 |
# for the other provinces only approximate:
|
|
1554 |
#
|
|
1555 |
# Province Daylight saving time used
|
|
1556 |
# Prince Edward Island Not used.
|
|
1557 |
# Nova Scotia In Halifax only.
|
|
1558 |
# New Brunswick In St. John only.
|
|
1559 |
# Quebec In the following places:
|
|
1560 |
# Montreal Lachine
|
|
1561 |
# Quebec Mont-Royal
|
|
1562 |
# Levis Iberville
|
|
1563 |
# St. Lambert Cap de la Madeleine
|
|
1564 |
# Verdun Loretteville
|
|
1565 |
# Westmount Richmond
|
|
1566 |
# Outremont St. Jerome
|
|
1567 |
# Longueuil Greenfield Park
|
|
1568 |
# Arvida Waterloo
|
|
1569 |
# Chambly-Canton Beaulieu
|
|
1570 |
# Melbourne La Tuque
|
|
1571 |
# St. Theophile Buckingham
|
|
1572 |
# Ontario Used generally in the cities and towns along
|
|
1573 |
# the southerly part of the province. Not
|
|
1574 |
# used in the northwesterlhy part.
|
|
1575 |
# Manitoba Not used.
|
|
1576 |
# Saskatchewan In Regina only.
|
|
1577 |
# Alberta Not used.
|
|
1578 |
# British Columbia Not used.
|
|
1579 |
#
|
|
1580 |
# With some exceptions, the use of daylight saving may be said to be limited
|
|
1581 |
# to those cities and towns lying between Quebec city and Windsor, Ont.
|
|
1582 |
|
|
1583 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
1584 |
Rule Toronto 1919 only - Mar 30 23:30 1:00 D
|
|
1585 |
Rule Toronto 1919 only - Oct 26 0:00 0 S
|
|
1586 |
Rule Toronto 1920 only - May 2 2:00 1:00 D
|
|
1587 |
Rule Toronto 1920 only - Sep 26 0:00 0 S
|
|
1588 |
Rule Toronto 1921 only - May 15 2:00 1:00 D
|
|
1589 |
Rule Toronto 1921 only - Sep 15 2:00 0 S
|
|
1590 |
Rule Toronto 1922 1923 - May Sun>=8 2:00 1:00 D
|
|
1591 |
# Shanks & Pottenger say 1923-09-19; assume it's a typo and that "-16"
|
|
1592 |
# was meant.
|
|
1593 |
Rule Toronto 1922 1926 - Sep Sun>=15 2:00 0 S
|
|
1594 |
Rule Toronto 1924 1927 - May Sun>=1 2:00 1:00 D
|
|
1595 |
# The 1927-to-1939 rules can be expressed more simply as
|
|
1596 |
# Rule Toronto 1927 1937 - Sep Sun>=25 2:00 0 S
|
|
1597 |
# Rule Toronto 1928 1937 - Apr Sun>=25 2:00 1:00 D
|
|
1598 |
# Rule Toronto 1938 1940 - Apr lastSun 2:00 1:00 D
|
|
1599 |
# Rule Toronto 1938 1939 - Sep lastSun 2:00 0 S
|
|
1600 |
# The rules below avoid use of Sun>=25
|
|
1601 |
# (which pre-2004 versions of zic cannot handle).
|
|
1602 |
Rule Toronto 1927 1932 - Sep lastSun 2:00 0 S
|
|
1603 |
Rule Toronto 1928 1931 - Apr lastSun 2:00 1:00 D
|
|
1604 |
Rule Toronto 1932 only - May 1 2:00 1:00 D
|
|
1605 |
Rule Toronto 1933 1940 - Apr lastSun 2:00 1:00 D
|
|
1606 |
Rule Toronto 1933 only - Oct 1 2:00 0 S
|
|
1607 |
Rule Toronto 1934 1939 - Sep lastSun 2:00 0 S
|
|
1608 |
Rule Toronto 1945 1946 - Sep lastSun 2:00 0 S
|
|
1609 |
Rule Toronto 1946 only - Apr lastSun 2:00 1:00 D
|
|
1610 |
Rule Toronto 1947 1949 - Apr lastSun 0:00 1:00 D
|
|
1611 |
Rule Toronto 1947 1948 - Sep lastSun 0:00 0 S
|
|
1612 |
Rule Toronto 1949 only - Nov lastSun 0:00 0 S
|
|
1613 |
Rule Toronto 1950 1973 - Apr lastSun 2:00 1:00 D
|
|
1614 |
Rule Toronto 1950 only - Nov lastSun 2:00 0 S
|
|
1615 |
Rule Toronto 1951 1956 - Sep lastSun 2:00 0 S
|
|
1616 |
# Shanks & Pottenger say Toronto ended DST a week early in 1971,
|
|
1617 |
# namely on 1971-10-24, but Mark Brader wrote (2003-05-31) that this
|
|
1618 |
# is wrong, and that he had confirmed it by checking the 1971-10-30
|
|
1619 |
# Toronto Star, which said that DST was ending 1971-10-31 as usual.
|
|
1620 |
Rule Toronto 1957 1973 - Oct lastSun 2:00 0 S
|
|
1621 |
|
|
1622 |
# From Paul Eggert (2003-07-27):
|
|
1623 |
# Willett (1914-03) writes (p. 17) "In the Cities of Fort William, and
|
|
1624 |
# Port Arthur, Ontario, the principle of the Bill has been in
|
|
1625 |
# operation for the past three years, and in the City of Moose Jaw,
|
|
1626 |
# Saskatchewan, for one year."
|
|
1627 |
|
|
1628 |
# From David Bryan via Tory Tronrud, Director/Curator,
|
|
1629 |
# Thunder Bay Museum (2003-11-12):
|
|
1630 |
# There is some suggestion, however, that, by-law or not, daylight
|
|
1631 |
# savings time was being practiced in Fort William and Port Arthur
|
|
1632 |
# before 1909.... [I]n 1910, the line between the Eastern and Central
|
|
1633 |
# Time Zones was permanently moved about two hundred miles west to
|
|
1634 |
# include the Thunder Bay area.... When Canada adopted daylight
|
|
1635 |
# savings time in 1916, Fort William and Port Arthur, having done so
|
|
1636 |
# already, did not change their clocks.... During the Second World
|
|
1637 |
# War,... [t]he cities agreed to implement DST during the summer
|
|
1638 |
# months for the remainder of the war years.
|
|
1639 |
|
|
1640 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
1641 |
Zone America/Toronto -5:17:32 - LMT 1895
|
|
1642 |
-5:00 Canada E%sT 1919
|
|
1643 |
-5:00 Toronto E%sT 1942 Feb 9 2:00s
|
|
1644 |
-5:00 Canada E%sT 1946
|
|
1645 |
-5:00 Toronto E%sT 1974
|
|
1646 |
-5:00 Canada E%sT
|
|
1647 |
Zone America/Thunder_Bay -5:57:00 - LMT 1895
|
|
1648 |
-6:00 - CST 1910
|
|
1649 |
-5:00 - EST 1942
|
|
1650 |
-5:00 Canada E%sT 1970
|
20867
|
1651 |
-5:00 Toronto E%sT 1973
|
15658
|
1652 |
-5:00 - EST 1974
|
|
1653 |
-5:00 Canada E%sT
|
|
1654 |
Zone America/Nipigon -5:53:04 - LMT 1895
|
|
1655 |
-5:00 Canada E%sT 1940 Sep 29
|
|
1656 |
-5:00 1:00 EDT 1942 Feb 9 2:00s
|
|
1657 |
-5:00 Canada E%sT
|
|
1658 |
Zone America/Rainy_River -6:18:16 - LMT 1895
|
|
1659 |
-6:00 Canada C%sT 1940 Sep 29
|
|
1660 |
-6:00 1:00 CDT 1942 Feb 9 2:00s
|
|
1661 |
-6:00 Canada C%sT
|
|
1662 |
Zone America/Atikokan -6:06:28 - LMT 1895
|
|
1663 |
-6:00 Canada C%sT 1940 Sep 29
|
|
1664 |
-6:00 1:00 CDT 1942 Feb 9 2:00s
|
|
1665 |
-6:00 Canada C%sT 1945 Sep 30 2:00
|
|
1666 |
-5:00 - EST
|
|
1667 |
|
|
1668 |
|
|
1669 |
# Manitoba
|
|
1670 |
|
|
1671 |
# From Rob Douglas (2006-04-06):
|
|
1672 |
# the old Manitoba Time Act - as amended by Bill 2, assented to
|
|
1673 |
# March 27, 1987 ... said ...
|
|
1674 |
# "between two o'clock Central Standard Time in the morning of
|
|
1675 |
# the first Sunday of April of each year and two o'clock Central
|
|
1676 |
# Standard Time in the morning of the last Sunday of October next
|
|
1677 |
# following, one hour in advance of Central Standard Time."...
|
|
1678 |
# I believe that the English legislation [of the old time act] had =
|
|
1679 |
# been assented to (March 22, 1967)....
|
|
1680 |
# Also, as far as I can tell, there was no order-in-council varying
|
|
1681 |
# the time of Daylight Saving Time for 2005 and so the provisions of
|
|
1682 |
# the 1987 version would apply - the changeover was at 2:00 Central
|
|
1683 |
# Standard Time (i.e. not until 3:00 Central Daylight Time).
|
|
1684 |
|
|
1685 |
# From Paul Eggert (2006-04-10):
|
|
1686 |
# Shanks & Pottenger say Manitoba switched at 02:00 (not 02:00s)
|
|
1687 |
# starting 1966. Since 02:00s is clearly correct for 1967 on, assume
|
|
1688 |
# it was also 02:00s in 1966.
|
|
1689 |
|
|
1690 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
1691 |
Rule Winn 1916 only - Apr 23 0:00 1:00 D
|
|
1692 |
Rule Winn 1916 only - Sep 17 0:00 0 S
|
|
1693 |
Rule Winn 1918 only - Apr 14 2:00 1:00 D
|
|
1694 |
Rule Winn 1918 only - Oct 27 2:00 0 S
|
|
1695 |
Rule Winn 1937 only - May 16 2:00 1:00 D
|
|
1696 |
Rule Winn 1937 only - Sep 26 2:00 0 S
|
|
1697 |
Rule Winn 1942 only - Feb 9 2:00 1:00 W # War
|
|
1698 |
Rule Winn 1945 only - Aug 14 23:00u 1:00 P # Peace
|
|
1699 |
Rule Winn 1945 only - Sep lastSun 2:00 0 S
|
|
1700 |
Rule Winn 1946 only - May 12 2:00 1:00 D
|
|
1701 |
Rule Winn 1946 only - Oct 13 2:00 0 S
|
|
1702 |
Rule Winn 1947 1949 - Apr lastSun 2:00 1:00 D
|
|
1703 |
Rule Winn 1947 1949 - Sep lastSun 2:00 0 S
|
|
1704 |
Rule Winn 1950 only - May 1 2:00 1:00 D
|
|
1705 |
Rule Winn 1950 only - Sep 30 2:00 0 S
|
|
1706 |
Rule Winn 1951 1960 - Apr lastSun 2:00 1:00 D
|
|
1707 |
Rule Winn 1951 1958 - Sep lastSun 2:00 0 S
|
|
1708 |
Rule Winn 1959 only - Oct lastSun 2:00 0 S
|
|
1709 |
Rule Winn 1960 only - Sep lastSun 2:00 0 S
|
|
1710 |
Rule Winn 1963 only - Apr lastSun 2:00 1:00 D
|
|
1711 |
Rule Winn 1963 only - Sep 22 2:00 0 S
|
|
1712 |
Rule Winn 1966 1986 - Apr lastSun 2:00s 1:00 D
|
|
1713 |
Rule Winn 1966 2005 - Oct lastSun 2:00s 0 S
|
|
1714 |
Rule Winn 1987 2005 - Apr Sun>=1 2:00s 1:00 D
|
|
1715 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
1716 |
Zone America/Winnipeg -6:28:36 - LMT 1887 Jul 16
|
|
1717 |
-6:00 Winn C%sT 2006
|
|
1718 |
-6:00 Canada C%sT
|
|
1719 |
|
|
1720 |
|
|
1721 |
# Saskatchewan
|
|
1722 |
|
|
1723 |
# From Mark Brader (2003-07-26):
|
|
1724 |
# The first actual adoption of DST in Canada was at the municipal
|
|
1725 |
# level. As the [Toronto] Star put it (1912-06-07), "While people
|
|
1726 |
# elsewhere have long been talking of legislation to save daylight,
|
|
1727 |
# the city of Moose Jaw [Saskatchewan] has acted on its own hook."
|
|
1728 |
# DST in Moose Jaw began on Saturday, 1912-06-01 (no time mentioned:
|
|
1729 |
# presumably late evening, as below), and would run until "the end of
|
|
1730 |
# the summer". The discrepancy between municipal time and railroad
|
|
1731 |
# time was noted.
|
|
1732 |
|
|
1733 |
# From Paul Eggert (2003-07-27):
|
|
1734 |
# Willett (1914-03) notes that DST "has been in operation ... in the
|
|
1735 |
# City of Moose Jaw, Saskatchewan, for one year."
|
|
1736 |
|
|
1737 |
# From Paul Eggert (2006-03-22):
|
|
1738 |
# Shanks & Pottenger say that since 1970 this region has mostly been as Regina.
|
|
1739 |
# Some western towns (e.g. Swift Current) switched from MST/MDT to CST in 1972.
|
|
1740 |
# Other western towns (e.g. Lloydminster) are like Edmonton.
|
|
1741 |
# Matthews and Vincent (1998) write that Denare Beach and Creighton
|
|
1742 |
# are like Winnipeg, in violation of Saskatchewan law.
|
|
1743 |
|
|
1744 |
# From W. Jones (1992-11-06):
|
|
1745 |
# The. . .below is based on information I got from our law library, the
|
|
1746 |
# provincial archives, and the provincial Community Services department.
|
|
1747 |
# A precise history would require digging through newspaper archives, and
|
|
1748 |
# since you didn't say what you wanted, I didn't bother.
|
|
1749 |
#
|
|
1750 |
# Saskatchewan is split by a time zone meridian (105W) and over the years
|
|
1751 |
# the boundary became pretty ragged as communities near it reevaluated
|
|
1752 |
# their affiliations in one direction or the other. In 1965 a provincial
|
|
1753 |
# referendum favoured legislating common time practices.
|
|
1754 |
#
|
|
1755 |
# On 15 April 1966 the Time Act (c. T-14, Revised Statutes of
|
|
1756 |
# Saskatchewan 1978) was proclaimed, and established that the eastern
|
|
1757 |
# part of Saskatchewan would use CST year round, that districts in
|
|
1758 |
# northwest Saskatchewan would by default follow CST but could opt to
|
|
1759 |
# follow Mountain Time rules (thus 1 hour difference in the winter and
|
|
1760 |
# zero in the summer), and that districts in southwest Saskatchewan would
|
|
1761 |
# by default follow MT but could opt to follow CST.
|
|
1762 |
#
|
|
1763 |
# It took a few years for the dust to settle (I know one story of a town
|
|
1764 |
# on one time zone having its school in another, such that a mom had to
|
|
1765 |
# serve her family lunch in two shifts), but presently it seems that only
|
|
1766 |
# a few towns on the border with Alberta (e.g. Lloydminster) follow MT
|
|
1767 |
# rules any more; all other districts appear to have used CST year round
|
|
1768 |
# since sometime in the 1960s.
|
|
1769 |
|
|
1770 |
# From Chris Walton (2006-06-26):
|
|
1771 |
# The Saskatchewan time act which was last updated in 1996 is about 30 pages
|
|
1772 |
# long and rather painful to read.
|
|
1773 |
# http://www.qp.gov.sk.ca/documents/English/Statutes/Statutes/T14.pdf
|
|
1774 |
|
|
1775 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
1776 |
Rule Regina 1918 only - Apr 14 2:00 1:00 D
|
|
1777 |
Rule Regina 1918 only - Oct 27 2:00 0 S
|
|
1778 |
Rule Regina 1930 1934 - May Sun>=1 0:00 1:00 D
|
|
1779 |
Rule Regina 1930 1934 - Oct Sun>=1 0:00 0 S
|
|
1780 |
Rule Regina 1937 1941 - Apr Sun>=8 0:00 1:00 D
|
|
1781 |
Rule Regina 1937 only - Oct Sun>=8 0:00 0 S
|
|
1782 |
Rule Regina 1938 only - Oct Sun>=1 0:00 0 S
|
|
1783 |
Rule Regina 1939 1941 - Oct Sun>=8 0:00 0 S
|
|
1784 |
Rule Regina 1942 only - Feb 9 2:00 1:00 W # War
|
|
1785 |
Rule Regina 1945 only - Aug 14 23:00u 1:00 P # Peace
|
|
1786 |
Rule Regina 1945 only - Sep lastSun 2:00 0 S
|
|
1787 |
Rule Regina 1946 only - Apr Sun>=8 2:00 1:00 D
|
|
1788 |
Rule Regina 1946 only - Oct Sun>=8 2:00 0 S
|
|
1789 |
Rule Regina 1947 1957 - Apr lastSun 2:00 1:00 D
|
|
1790 |
Rule Regina 1947 1957 - Sep lastSun 2:00 0 S
|
|
1791 |
Rule Regina 1959 only - Apr lastSun 2:00 1:00 D
|
|
1792 |
Rule Regina 1959 only - Oct lastSun 2:00 0 S
|
|
1793 |
#
|
|
1794 |
Rule Swift 1957 only - Apr lastSun 2:00 1:00 D
|
|
1795 |
Rule Swift 1957 only - Oct lastSun 2:00 0 S
|
|
1796 |
Rule Swift 1959 1961 - Apr lastSun 2:00 1:00 D
|
|
1797 |
Rule Swift 1959 only - Oct lastSun 2:00 0 S
|
|
1798 |
Rule Swift 1960 1961 - Sep lastSun 2:00 0 S
|
|
1799 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
1800 |
Zone America/Regina -6:58:36 - LMT 1905 Sep
|
|
1801 |
-7:00 Regina M%sT 1960 Apr lastSun 2:00
|
|
1802 |
-6:00 - CST
|
|
1803 |
Zone America/Swift_Current -7:11:20 - LMT 1905 Sep
|
|
1804 |
-7:00 Canada M%sT 1946 Apr lastSun 2:00
|
|
1805 |
-7:00 Regina M%sT 1950
|
|
1806 |
-7:00 Swift M%sT 1972 Apr lastSun 2:00
|
|
1807 |
-6:00 - CST
|
|
1808 |
|
|
1809 |
|
|
1810 |
# Alberta
|
|
1811 |
|
|
1812 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
1813 |
Rule Edm 1918 1919 - Apr Sun>=8 2:00 1:00 D
|
|
1814 |
Rule Edm 1918 only - Oct 27 2:00 0 S
|
|
1815 |
Rule Edm 1919 only - May 27 2:00 0 S
|
|
1816 |
Rule Edm 1920 1923 - Apr lastSun 2:00 1:00 D
|
|
1817 |
Rule Edm 1920 only - Oct lastSun 2:00 0 S
|
|
1818 |
Rule Edm 1921 1923 - Sep lastSun 2:00 0 S
|
|
1819 |
Rule Edm 1942 only - Feb 9 2:00 1:00 W # War
|
|
1820 |
Rule Edm 1945 only - Aug 14 23:00u 1:00 P # Peace
|
|
1821 |
Rule Edm 1945 only - Sep lastSun 2:00 0 S
|
|
1822 |
Rule Edm 1947 only - Apr lastSun 2:00 1:00 D
|
|
1823 |
Rule Edm 1947 only - Sep lastSun 2:00 0 S
|
|
1824 |
Rule Edm 1967 only - Apr lastSun 2:00 1:00 D
|
|
1825 |
Rule Edm 1967 only - Oct lastSun 2:00 0 S
|
|
1826 |
Rule Edm 1969 only - Apr lastSun 2:00 1:00 D
|
|
1827 |
Rule Edm 1969 only - Oct lastSun 2:00 0 S
|
|
1828 |
Rule Edm 1972 1986 - Apr lastSun 2:00 1:00 D
|
|
1829 |
Rule Edm 1972 2006 - Oct lastSun 2:00 0 S
|
|
1830 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
1831 |
Zone America/Edmonton -7:33:52 - LMT 1906 Sep
|
|
1832 |
-7:00 Edm M%sT 1987
|
|
1833 |
-7:00 Canada M%sT
|
|
1834 |
|
|
1835 |
|
|
1836 |
# British Columbia
|
|
1837 |
|
|
1838 |
# From Paul Eggert (2006-03-22):
|
|
1839 |
# Shanks & Pottenger write that since 1970 most of this region has
|
|
1840 |
# been like Vancouver.
|
|
1841 |
# Dawson Creek uses MST. Much of east BC is like Edmonton.
|
|
1842 |
# Matthews and Vincent (1998) write that Creston is like Dawson Creek.
|
|
1843 |
|
|
1844 |
# It seems though that (re: Creston) is not entirely correct:
|
|
1845 |
|
|
1846 |
# From Chris Walton (2011-12-01):
|
|
1847 |
# There are two areas within the Canadian province of British Columbia
|
|
1848 |
# that do not currently observe daylight saving:
|
|
1849 |
# a) The Creston Valley (includes the town of Creston and surrounding area)
|
|
1850 |
# b) The eastern half of the Peace River Regional District
|
|
1851 |
# (includes the cities of Dawson Creek and Fort St. John)
|
|
1852 |
|
|
1853 |
# Earlier this year I stumbled across a detailed article about the time
|
|
1854 |
# keeping history of Creston; it was written by Tammy Hardwick who is the
|
|
1855 |
# manager of the Creston & District Museum. The article was written in May 2009.
|
|
1856 |
# <a href="http://www.ilovecreston.com/?p=articles&t=spec&ar=260">
|
|
1857 |
# http://www.ilovecreston.com/?p=articles&t=spec&ar=260
|
|
1858 |
# </a>
|
|
1859 |
# According to the article, Creston has not changed its clocks since June 1918.
|
|
1860 |
# i.e. Creston has been stuck on UTC-7 for 93 years.
|
|
1861 |
# Dawson Creek, on the other hand, changed its clocks as recently as April 1972.
|
|
1862 |
|
|
1863 |
# Unfortunately the exact date for the time change in June 1918 remains
|
|
1864 |
# unknown and will be difficult to ascertain. I e-mailed Tammy a few months
|
|
1865 |
# ago to ask if Sunday June 2 was a reasonable guess. She said it was just
|
|
1866 |
# as plausible as any other date (in June). She also said that after writing the
|
|
1867 |
# article she had discovered another time change in 1916; this is the subject
|
|
1868 |
# of another article which she wrote in October 2010.
|
|
1869 |
# <a href="http://www.creston.museum.bc.ca/index.php?module=comments&uop=view_comment&cm+id=56">
|
|
1870 |
# http://www.creston.museum.bc.ca/index.php?module=comments&uop=view_comment&cm+id=56
|
|
1871 |
# </a>
|
|
1872 |
|
|
1873 |
# Here is a summary of the three clock change events in Creston's history:
|
|
1874 |
# 1. 1884 or 1885: adoption of Mountain Standard Time (GMT-7)
|
|
1875 |
# Exact date unknown
|
|
1876 |
# 2. Oct 1916: switch to Pacific Standard Time (GMT-8)
|
|
1877 |
# Exact date in October unknown; Sunday October 1 is a reasonable guess.
|
|
1878 |
# 3. June 1918: switch to Pacific Daylight Time (GMT-7)
|
|
1879 |
# Exact date in June unknown; Sunday June 2 is a reasonable guess.
|
|
1880 |
# note#1:
|
|
1881 |
# On Oct 27/1918 when daylight saving ended in the rest of Canada,
|
|
1882 |
# Creston did not change its clocks.
|
|
1883 |
# note#2:
|
|
1884 |
# During WWII when the Federal Government legislated a mandatory clock change,
|
|
1885 |
# Creston did not oblige.
|
|
1886 |
# note#3:
|
|
1887 |
# There is no guarantee that Creston will remain on Mountain Standard Time
|
|
1888 |
# (UTC-7) forever.
|
|
1889 |
# The subject was debated at least once this year by the town Council.
|
|
1890 |
# <a href="http://www.bclocalnews.com/kootenay_rockies/crestonvalleyadvance/news/116760809.html">
|
|
1891 |
# http://www.bclocalnews.com/kootenay_rockies/crestonvalleyadvance/news/116760809.html
|
|
1892 |
# </a>
|
|
1893 |
|
|
1894 |
# During a period WWII, summer time (Daylight saying) was mandatory in Canada.
|
|
1895 |
# In Creston, that was handled by shifting the area to PST (-8:00) then applying
|
|
1896 |
# summer time to cause the offset to be -7:00, the same as it had been before
|
|
1897 |
# the change. It can be argued that the timezone abbreviation during this
|
|
1898 |
# period should be PDT rather than MST, but that doesn't seem important enough
|
|
1899 |
# (to anyone) to further complicate the rules.
|
|
1900 |
|
|
1901 |
# The transition dates (and times) are guesses.
|
|
1902 |
|
|
1903 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
1904 |
Rule Vanc 1918 only - Apr 14 2:00 1:00 D
|
|
1905 |
Rule Vanc 1918 only - Oct 27 2:00 0 S
|
|
1906 |
Rule Vanc 1942 only - Feb 9 2:00 1:00 W # War
|
|
1907 |
Rule Vanc 1945 only - Aug 14 23:00u 1:00 P # Peace
|
|
1908 |
Rule Vanc 1945 only - Sep 30 2:00 0 S
|
|
1909 |
Rule Vanc 1946 1986 - Apr lastSun 2:00 1:00 D
|
|
1910 |
Rule Vanc 1946 only - Oct 13 2:00 0 S
|
|
1911 |
Rule Vanc 1947 1961 - Sep lastSun 2:00 0 S
|
|
1912 |
Rule Vanc 1962 2006 - Oct lastSun 2:00 0 S
|
|
1913 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
1914 |
Zone America/Vancouver -8:12:28 - LMT 1884
|
|
1915 |
-8:00 Vanc P%sT 1987
|
|
1916 |
-8:00 Canada P%sT
|
|
1917 |
Zone America/Dawson_Creek -8:00:56 - LMT 1884
|
|
1918 |
-8:00 Canada P%sT 1947
|
|
1919 |
-8:00 Vanc P%sT 1972 Aug 30 2:00
|
|
1920 |
-7:00 - MST
|
|
1921 |
Zone America/Creston -7:46:04 - LMT 1884
|
|
1922 |
-7:00 - MST 1916 Oct 1
|
|
1923 |
-8:00 - PST 1918 Jun 2
|
|
1924 |
-7:00 - MST
|
|
1925 |
|
|
1926 |
# Northwest Territories, Nunavut, Yukon
|
|
1927 |
|
|
1928 |
# From Paul Eggert (2006-03-22):
|
|
1929 |
# Dawson switched to PST in 1973. Inuvik switched to MST in 1979.
|
|
1930 |
# Mathew Englander (1996-10-07) gives the following refs:
|
|
1931 |
# * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68,
|
|
1932 |
# c. 7 defines Yukon standard time as UTC-9. This is still valid;
|
|
1933 |
# see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1).
|
|
1934 |
# * C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00.
|
|
1935 |
# * O.I.C. 1980/02 established DST.
|
|
1936 |
# * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00.
|
|
1937 |
# Shanks & Pottenger say Yukon's 1973-10-28 switch was at 2:00; go
|
|
1938 |
# with Englander.
|
|
1939 |
# From Chris Walton (2006-06-26):
|
|
1940 |
# Here is a link to the old daylight saving portion of the interpretation
|
|
1941 |
# act which was last updated in 1987:
|
|
1942 |
# http://www.gov.yk.ca/legislation/regs/oic1987_056.pdf
|
|
1943 |
|
|
1944 |
# From Rives McDow (1999-09-04):
|
|
1945 |
# Nunavut ... moved ... to incorporate the whole territory into one time zone.
|
|
1946 |
# <a href="http://www.nunatsiaq.com/nunavut/nvt90903_13.html">
|
|
1947 |
# Nunavut moves to single time zone Oct. 31
|
|
1948 |
# </a>
|
|
1949 |
#
|
|
1950 |
# From Antoine Leca (1999-09-06):
|
|
1951 |
# We then need to create a new timezone for the Kitikmeot region of Nunavut
|
|
1952 |
# to differentiate it from the Yellowknife region.
|
|
1953 |
|
|
1954 |
# From Paul Eggert (1999-09-20):
|
|
1955 |
# <a href="http://www.nunavut.com/basicfacts/english/basicfacts_1territory.html">
|
|
1956 |
# Basic Facts: The New Territory
|
|
1957 |
# </a> (1999) reports that Pangnirtung operates on eastern time,
|
|
1958 |
# and that Coral Harbour does not observe DST. We don't know when
|
|
1959 |
# Pangnirtung switched to eastern time; we'll guess 1995.
|
|
1960 |
|
|
1961 |
# From Rives McDow (1999-11-08):
|
|
1962 |
# On October 31, when the rest of Nunavut went to Central time,
|
|
1963 |
# Pangnirtung wobbled. Here is the result of their wobble:
|
|
1964 |
#
|
|
1965 |
# The following businesses and organizations in Pangnirtung use Central Time:
|
|
1966 |
#
|
|
1967 |
# First Air, Power Corp, Nunavut Construction, Health Center, RCMP,
|
|
1968 |
# Eastern Arctic National Parks, A & D Specialist
|
|
1969 |
#
|
|
1970 |
# The following businesses and organizations in Pangnirtung use Eastern Time:
|
|
1971 |
#
|
|
1972 |
# Hamlet office, All other businesses, Both schools, Airport operator
|
|
1973 |
#
|
|
1974 |
# This has made for an interesting situation there, which warranted the news.
|
|
1975 |
# No one there that I spoke with seems concerned, or has plans to
|
|
1976 |
# change the local methods of keeping time, as it evidently does not
|
|
1977 |
# really interfere with any activities or make things difficult locally.
|
|
1978 |
# They plan to celebrate New Year's turn-over twice, one hour apart,
|
|
1979 |
# so it appears that the situation will last at least that long.
|
|
1980 |
# The Nunavut Intergovernmental Affairs hopes that they will "come to
|
|
1981 |
# their senses", but the locals evidently don't see any problem with
|
|
1982 |
# the current state of affairs.
|
|
1983 |
|
|
1984 |
# From Michaela Rodrigue, writing in the
|
|
1985 |
# <a href="http://www.nunatsiaq.com/archives/nunavut991130/nvt91119_17.html">
|
|
1986 |
# Nunatsiaq News (1999-11-19)</a>:
|
|
1987 |
# Clyde River, Pangnirtung and Sanikiluaq now operate with two time zones,
|
|
1988 |
# central - or Nunavut time - for government offices, and eastern time
|
|
1989 |
# for municipal offices and schools.... Igloolik [was similar but then]
|
|
1990 |
# made the switch to central time on Saturday, Nov. 6.
|
|
1991 |
|
|
1992 |
# From Paul Eggert (2000-10-02):
|
|
1993 |
# Matthews and Vincent (1998) say the following, but we lack histories
|
|
1994 |
# for these potential new Zones.
|
|
1995 |
#
|
|
1996 |
# The Canadian Forces station at Alert uses Eastern Time while the
|
|
1997 |
# handful of residents at the Eureka weather station [in the Central
|
|
1998 |
# zone] skip daylight savings. Baffin Island, which is crossed by the
|
|
1999 |
# Central, Eastern and Atlantic Time zones only uses Eastern Time.
|
|
2000 |
# Gjoa Haven, Taloyoak and Pelly Bay all use Mountain instead of
|
|
2001 |
# Central Time and Southampton Island [in the Central zone] is not
|
|
2002 |
# required to use daylight savings.
|
|
2003 |
|
|
2004 |
# From
|
|
2005 |
# <a href="http://www.nunatsiaq.com/archives/nunavut001130/nvt21110_02.html">
|
|
2006 |
# Nunavut now has two time zones
|
|
2007 |
# </a> (2000-11-10):
|
|
2008 |
# The Nunavut government would allow its employees in Kugluktuk and
|
|
2009 |
# Cambridge Bay to operate on central time year-round, putting them
|
|
2010 |
# one hour behind the rest of Nunavut for six months during the winter.
|
|
2011 |
# At the end of October the two communities had rebelled against
|
|
2012 |
# Nunavut's unified time zone, refusing to shift to eastern time with
|
|
2013 |
# the rest of the territory for the winter. Cambridge Bay remained on
|
|
2014 |
# central time, while Kugluktuk, even farther west, reverted to
|
|
2015 |
# mountain time, which they had used before the advent of Nunavut's
|
|
2016 |
# unified time zone in 1999.
|
|
2017 |
#
|
|
2018 |
# From Rives McDow (2001-01-20), quoting the Nunavut government:
|
|
2019 |
# The preceding decision came into effect at midnight, Saturday Nov 4, 2000.
|
|
2020 |
|
|
2021 |
# From Paul Eggert (2000-12-04):
|
|
2022 |
# Let's just keep track of the official times for now.
|
|
2023 |
|
|
2024 |
# From Rives McDow (2001-03-07):
|
|
2025 |
# The premier of Nunavut has issued a ministerial statement advising
|
|
2026 |
# that effective 2001-04-01, the territory of Nunavut will revert
|
|
2027 |
# back to three time zones (mountain, central, and eastern). Of the
|
|
2028 |
# cities in Nunavut, Coral Harbor is the only one that I know of that
|
|
2029 |
# has said it will not observe dst, staying on EST year round. I'm
|
|
2030 |
# checking for more info, and will get back to you if I come up with
|
|
2031 |
# more.
|
|
2032 |
# [Also see <http://www.nunatsiaq.com/nunavut/nvt10309_06.html> (2001-03-09).]
|
|
2033 |
|
|
2034 |
# From Gwillim Law (2005-05-21):
|
|
2035 |
# According to maps at
|
|
2036 |
# http://inms-ienm.nrc-cnrc.gc.ca/images/time_services/TZ01SWE.jpg
|
|
2037 |
# http://inms-ienm.nrc-cnrc.gc.ca/images/time_services/TZ01SSE.jpg
|
|
2038 |
# (both dated 2003), and
|
|
2039 |
# http://www.canadiangeographic.ca/Magazine/SO98/geomap.asp
|
|
2040 |
# (from a 1998 Canadian Geographic article), the de facto and de jure time
|
|
2041 |
# for Southampton Island (at the north end of Hudson Bay) is UTC-5 all year
|
|
2042 |
# round. Using Google, it's easy to find other websites that confirm this.
|
|
2043 |
# I wasn't able to find how far back this time regimen goes, but since it
|
|
2044 |
# predates the creation of Nunavut, it probably goes back many years....
|
|
2045 |
# The Inuktitut name of Coral Harbour is Sallit, but it's rarely used.
|
|
2046 |
#
|
|
2047 |
# From Paul Eggert (2005-07-26):
|
|
2048 |
# For lack of better information, assume that Southampton Island observed
|
|
2049 |
# daylight saving only during wartime.
|
|
2050 |
|
|
2051 |
# From Chris Walton (2007-03-01):
|
|
2052 |
# ... the community of Resolute (located on Cornwallis Island in
|
|
2053 |
# Nunavut) moved from Central Time to Eastern Time last November.
|
|
2054 |
# Basically the community did not change its clocks at the end of
|
|
2055 |
# daylight saving....
|
|
2056 |
# http://www.nnsl.com/frames/newspapers/2006-11/nov13_06none.html
|
|
2057 |
|
|
2058 |
# From Chris Walton (2011-03-21):
|
|
2059 |
# Back in 2007 I initiated the creation of a new "zone file" for Resolute
|
|
2060 |
# Bay. Resolute Bay is a small community located about 900km north of
|
|
2061 |
# the Arctic Circle. The zone file was required because Resolute Bay had
|
|
2062 |
# decided to use UTC-5 instead of UTC-6 for the winter of 2006-2007.
|
|
2063 |
#
|
|
2064 |
# According to new information which I received last week, Resolute Bay
|
|
2065 |
# went back to using UTC-6 in the winter of 2007-2008...
|
|
2066 |
#
|
|
2067 |
# On March 11/2007 most of Canada went onto daylight saving. On March
|
|
2068 |
# 14/2007 I phoned the Resolute Bay hamlet office to do a "time check." I
|
|
2069 |
# talked to somebody that was both knowledgeable and helpful. I was able
|
|
2070 |
# to confirm that Resolute Bay was still operating on UTC-5. It was
|
|
2071 |
# explained to me that Resolute Bay had been on the Eastern Time zone
|
|
2072 |
# (EST) in the winter, and was now back on the Central Time zone (CDT).
|
|
2073 |
# i.e. the time zone had changed twice in the last year but the clocks
|
|
2074 |
# had not moved. The residents had to know which time zone they were in
|
|
2075 |
# so they could follow the correct TV schedule...
|
|
2076 |
#
|
|
2077 |
# On Nov 02/2008 most of Canada went onto standard time. On Nov 03/2008 I
|
|
2078 |
# phoned the Resolute Bay hamlet office...[D]ue to the challenging nature
|
|
2079 |
# of the phone call, I decided to seek out an alternate source of
|
|
2080 |
# information. I found an e-mail address for somebody by the name of
|
|
2081 |
# Stephanie Adams whose job was listed as "Inns North Support Officer for
|
|
2082 |
# Arctic Co-operatives." I was under the impression that Stephanie lived
|
|
2083 |
# and worked in Resolute Bay...
|
|
2084 |
#
|
|
2085 |
# On March 14/2011 I phoned the hamlet office again. I was told that
|
|
2086 |
# Resolute Bay had been using Central Standard Time over the winter of
|
|
2087 |
# 2010-2011 and that the clocks had therefore been moved one hour ahead
|
|
2088 |
# on March 13/2011. The person I talked to was aware that Resolute Bay
|
|
2089 |
# had previously experimented with Eastern Standard Time but he could not
|
|
2090 |
# tell me when the practice had stopped.
|
|
2091 |
#
|
|
2092 |
# On March 17/2011 I searched the Web to find an e-mail address of
|
|
2093 |
# somebody that might be able to tell me exactly when Resolute Bay went
|
|
2094 |
# off Eastern Standard Time. I stumbled on the name "Aziz Kheraj." Aziz
|
|
2095 |
# used to be the mayor of Resolute Bay and he apparently owns half the
|
|
2096 |
# businesses including "South Camp Inn." This website has some info on
|
|
2097 |
# Aziz:
|
|
2098 |
# <a href="http://www.uphere.ca/node/493">
|
|
2099 |
# http://www.uphere.ca/node/493
|
|
2100 |
# </a>
|
|
2101 |
#
|
|
2102 |
# I sent Aziz an e-mail asking when Resolute Bay had stopped using
|
|
2103 |
# Eastern Standard Time.
|
|
2104 |
#
|
|
2105 |
# Aziz responded quickly with this: "hi, The time was not changed for the
|
|
2106 |
# 1 year only, the following year, the community went back to the old way
|
|
2107 |
# of "spring ahead-fall behind" currently we are zulu plus 5 hrs and in
|
|
2108 |
# the winter Zulu plus 6 hrs"
|
|
2109 |
#
|
|
2110 |
# This of course conflicted with everything I had ascertained in November 2008.
|
|
2111 |
#
|
|
2112 |
# I sent Aziz a copy of my 2008 e-mail exchange with Stephanie. Aziz
|
|
2113 |
# responded with this: "Hi, Stephanie lives in Winnipeg. I live here, You
|
|
2114 |
# may want to check with the weather office in Resolute Bay or do a
|
|
2115 |
# search on the weather through Env. Canada. web site"
|
|
2116 |
#
|
|
2117 |
# If I had realized the Stephanie did not live in Resolute Bay I would
|
|
2118 |
# never have contacted her. I now believe that all the information I
|
|
2119 |
# obtained in November 2008 should be ignored...
|
|
2120 |
# I apologize for reporting incorrect information in 2008.
|
|
2121 |
|
|
2122 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
2123 |
Rule NT_YK 1918 only - Apr 14 2:00 1:00 D
|
|
2124 |
Rule NT_YK 1918 only - Oct 27 2:00 0 S
|
|
2125 |
Rule NT_YK 1919 only - May 25 2:00 1:00 D
|
|
2126 |
Rule NT_YK 1919 only - Nov 1 0:00 0 S
|
|
2127 |
Rule NT_YK 1942 only - Feb 9 2:00 1:00 W # War
|
|
2128 |
Rule NT_YK 1945 only - Aug 14 23:00u 1:00 P # Peace
|
|
2129 |
Rule NT_YK 1945 only - Sep 30 2:00 0 S
|
|
2130 |
Rule NT_YK 1965 only - Apr lastSun 0:00 2:00 DD
|
|
2131 |
Rule NT_YK 1965 only - Oct lastSun 2:00 0 S
|
|
2132 |
Rule NT_YK 1980 1986 - Apr lastSun 2:00 1:00 D
|
|
2133 |
Rule NT_YK 1980 2006 - Oct lastSun 2:00 0 S
|
|
2134 |
Rule NT_YK 1987 2006 - Apr Sun>=1 2:00 1:00 D
|
|
2135 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
2136 |
# aka Panniqtuuq
|
|
2137 |
Zone America/Pangnirtung 0 - zzz 1921 # trading post est.
|
|
2138 |
-4:00 NT_YK A%sT 1995 Apr Sun>=1 2:00
|
|
2139 |
-5:00 Canada E%sT 1999 Oct 31 2:00
|
|
2140 |
-6:00 Canada C%sT 2000 Oct 29 2:00
|
|
2141 |
-5:00 Canada E%sT
|
|
2142 |
# formerly Frobisher Bay
|
|
2143 |
Zone America/Iqaluit 0 - zzz 1942 Aug # Frobisher Bay est.
|
|
2144 |
-5:00 NT_YK E%sT 1999 Oct 31 2:00
|
|
2145 |
-6:00 Canada C%sT 2000 Oct 29 2:00
|
|
2146 |
-5:00 Canada E%sT
|
|
2147 |
# aka Qausuittuq
|
|
2148 |
Zone America/Resolute 0 - zzz 1947 Aug 31 # Resolute founded
|
|
2149 |
-6:00 NT_YK C%sT 2000 Oct 29 2:00
|
|
2150 |
-5:00 - EST 2001 Apr 1 3:00
|
|
2151 |
-6:00 Canada C%sT 2006 Oct 29 2:00
|
|
2152 |
-5:00 - EST 2007 Mar 11 3:00
|
|
2153 |
-6:00 Canada C%sT
|
|
2154 |
# aka Kangiqiniq
|
|
2155 |
Zone America/Rankin_Inlet 0 - zzz 1957 # Rankin Inlet founded
|
|
2156 |
-6:00 NT_YK C%sT 2000 Oct 29 2:00
|
|
2157 |
-5:00 - EST 2001 Apr 1 3:00
|
|
2158 |
-6:00 Canada C%sT
|
|
2159 |
# aka Iqaluktuuttiaq
|
|
2160 |
Zone America/Cambridge_Bay 0 - zzz 1920 # trading post est.?
|
|
2161 |
-7:00 NT_YK M%sT 1999 Oct 31 2:00
|
|
2162 |
-6:00 Canada C%sT 2000 Oct 29 2:00
|
|
2163 |
-5:00 - EST 2000 Nov 5 0:00
|
|
2164 |
-6:00 - CST 2001 Apr 1 3:00
|
|
2165 |
-7:00 Canada M%sT
|
|
2166 |
Zone America/Yellowknife 0 - zzz 1935 # Yellowknife founded?
|
|
2167 |
-7:00 NT_YK M%sT 1980
|
|
2168 |
-7:00 Canada M%sT
|
|
2169 |
Zone America/Inuvik 0 - zzz 1953 # Inuvik founded
|
|
2170 |
-8:00 NT_YK P%sT 1979 Apr lastSun 2:00
|
|
2171 |
-7:00 NT_YK M%sT 1980
|
|
2172 |
-7:00 Canada M%sT
|
|
2173 |
Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20
|
|
2174 |
-9:00 NT_YK Y%sT 1966 Jul 1 2:00
|
|
2175 |
-8:00 NT_YK P%sT 1980
|
|
2176 |
-8:00 Canada P%sT
|
|
2177 |
Zone America/Dawson -9:17:40 - LMT 1900 Aug 20
|
|
2178 |
-9:00 NT_YK Y%sT 1973 Oct 28 0:00
|
|
2179 |
-8:00 NT_YK P%sT 1980
|
|
2180 |
-8:00 Canada P%sT
|
|
2181 |
|
|
2182 |
|
|
2183 |
###############################################################################
|
|
2184 |
|
|
2185 |
# Mexico
|
|
2186 |
|
|
2187 |
# From Paul Eggert (2001-03-05):
|
|
2188 |
# The Investigation and Analysis Service of the
|
|
2189 |
# Mexican Library of Congress (MLoC) has published a
|
|
2190 |
# <a href="http://www.cddhcu.gob.mx/bibliot/publica/inveyana/polisoc/horver/">
|
|
2191 |
# history of Mexican local time (in Spanish)
|
|
2192 |
# </a>.
|
|
2193 |
#
|
|
2194 |
# Here are the discrepancies between Shanks & Pottenger (S&P) and the MLoC.
|
|
2195 |
# (In all cases we go with the MLoC.)
|
|
2196 |
# S&P report that Baja was at -8:00 in 1922/1923.
|
|
2197 |
# S&P say the 1930 transition in Baja was 1930-11-16.
|
|
2198 |
# S&P report no DST during summer 1931.
|
|
2199 |
# S&P report a transition at 1932-03-30 23:00, not 1932-04-01.
|
|
2200 |
|
|
2201 |
# From Gwillim Law (2001-02-20):
|
|
2202 |
# There are some other discrepancies between the Decrees page and the
|
|
2203 |
# tz database. I think they can best be explained by supposing that
|
|
2204 |
# the researchers who prepared the Decrees page failed to find some of
|
|
2205 |
# the relevant documents.
|
|
2206 |
|
|
2207 |
# From Alan Perry (1996-02-15):
|
|
2208 |
# A guy from our Mexico subsidiary finally found the Presidential Decree
|
|
2209 |
# outlining the timezone changes in Mexico.
|
|
2210 |
#
|
|
2211 |
# ------------- Begin Forwarded Message -------------
|
|
2212 |
#
|
|
2213 |
# I finally got my hands on the Official Presidential Decree that sets up the
|
|
2214 |
# rules for the DST changes. The rules are:
|
|
2215 |
#
|
|
2216 |
# 1. The country is divided in 3 timezones:
|
|
2217 |
# - Baja California Norte (the Mexico/BajaNorte TZ)
|
|
2218 |
# - Baja California Sur, Nayarit, Sinaloa and Sonora (the Mexico/BajaSur TZ)
|
|
2219 |
# - The rest of the country (the Mexico/General TZ)
|
|
2220 |
#
|
|
2221 |
# 2. From the first Sunday in April at 2:00 AM to the last Sunday in October
|
|
2222 |
# at 2:00 AM, the times in each zone are as follows:
|
|
2223 |
# BajaNorte: GMT+7
|
|
2224 |
# BajaSur: GMT+6
|
|
2225 |
# General: GMT+5
|
|
2226 |
#
|
|
2227 |
# 3. The rest of the year, the times are as follows:
|
|
2228 |
# BajaNorte: GMT+8
|
|
2229 |
# BajaSur: GMT+7
|
|
2230 |
# General: GMT+6
|
|
2231 |
#
|
|
2232 |
# The Decree was published in Mexico's Official Newspaper on January 4th.
|
|
2233 |
#
|
|
2234 |
# -------------- End Forwarded Message --------------
|
|
2235 |
# From Paul Eggert (1996-06-12):
|
|
2236 |
# For an English translation of the decree, see
|
|
2237 |
# <a href="http://mexico-travel.com/extra/timezone_eng.html">
|
20867
|
2238 |
# "Diario Oficial: Time Zone Changeover" (1996-01-04).
|
15658
|
2239 |
# </a>
|
|
2240 |
|
|
2241 |
# From Rives McDow (1998-10-08):
|
|
2242 |
# The State of Quintana Roo has reverted back to central STD and DST times
|
|
2243 |
# (i.e. UTC -0600 and -0500 as of 1998-08-02).
|
|
2244 |
|
|
2245 |
# From Rives McDow (2000-01-10):
|
|
2246 |
# Effective April 4, 1999 at 2:00 AM local time, Sonora changed to the time
|
|
2247 |
# zone 5 hours from the International Date Line, and will not observe daylight
|
|
2248 |
# savings time so as to stay on the same time zone as the southern part of
|
|
2249 |
# Arizona year round.
|
|
2250 |
|
|
2251 |
# From Jesper Norgaard, translating
|
|
2252 |
# <http://www.reforma.com/nacional/articulo/064327/> (2001-01-17):
|
|
2253 |
# In Oaxaca, the 55.000 teachers from the Section 22 of the National
|
|
2254 |
# Syndicate of Education Workers, refuse to apply daylight saving each
|
|
2255 |
# year, so that the more than 10,000 schools work at normal hour the
|
|
2256 |
# whole year.
|
|
2257 |
|
|
2258 |
# From Gwillim Law (2001-01-19):
|
|
2259 |
# <http://www.reforma.com/negocios_y_dinero/articulo/064481/> ... says
|
|
2260 |
# (translated):...
|
|
2261 |
# January 17, 2000 - The Energy Secretary, Ernesto Martens, announced
|
|
2262 |
# that Summer Time will be reduced from seven to five months, starting
|
|
2263 |
# this year....
|
|
2264 |
# <http://www.publico.com.mx/scripts/texto3.asp?action=pagina&pag=21&pos=p&secc=naci&date=01/17/2001>
|
|
2265 |
# [translated], says "summer time will ... take effect on the first Sunday
|
|
2266 |
# in May, and end on the last Sunday of September.
|
|
2267 |
|
|
2268 |
# From Arthur David Olson (2001-01-25):
|
|
2269 |
# The 2001-01-24 traditional Washington Post contained the page one
|
|
2270 |
# story "Timely Issue Divides Mexicans."...
|
|
2271 |
# http://www.washingtonpost.com/wp-dyn/articles/A37383-2001Jan23.html
|
|
2272 |
# ... Mexico City Mayor Lopez Obrador "...is threatening to keep
|
|
2273 |
# Mexico City and its 20 million residents on a different time than
|
|
2274 |
# the rest of the country..." In particular, Lopez Obrador would abolish
|
|
2275 |
# observation of Daylight Saving Time.
|
|
2276 |
|
|
2277 |
# <a href="http://www.conae.gob.mx/ahorro/decretohorver2001.html#decre">
|
|
2278 |
# Official statute published by the Energy Department
|
|
2279 |
# </a> (2001-02-01) shows Baja and Chihauhua as still using US DST rules,
|
|
2280 |
# and Sonora with no DST. This was reported by Jesper Norgaard (2001-02-03).
|
|
2281 |
|
|
2282 |
# From Paul Eggert (2001-03-03):
|
|
2283 |
#
|
|
2284 |
# <a href="http://www.latimes.com/news/nation/20010303/t000018766.html">
|
|
2285 |
# James F. Smith writes in today's LA Times
|
|
2286 |
# </a>
|
|
2287 |
# * Sonora will continue to observe standard time.
|
|
2288 |
# * Last week Mexico City's mayor Andres Manuel Lopez Obrador decreed that
|
|
2289 |
# the Federal District will not adopt DST.
|
|
2290 |
# * 4 of 16 district leaders announced they'll ignore the decree.
|
|
2291 |
# * The decree does not affect federal-controlled facilities including
|
|
2292 |
# the airport, banks, hospitals, and schools.
|
|
2293 |
#
|
|
2294 |
# For now we'll assume that the Federal District will bow to federal rules.
|
|
2295 |
|
|
2296 |
# From Jesper Norgaard (2001-04-01):
|
|
2297 |
# I found some references to the Mexican application of daylight
|
|
2298 |
# saving, which modifies what I had already sent you, stating earlier
|
|
2299 |
# that a number of northern Mexican states would go on daylight
|
|
2300 |
# saving. The modification reverts this to only cover Baja California
|
|
2301 |
# (Norte), while all other states (except Sonora, who has no daylight
|
|
2302 |
# saving all year) will follow the original decree of president
|
|
2303 |
# Vicente Fox, starting daylight saving May 6, 2001 and ending
|
|
2304 |
# September 30, 2001.
|
|
2305 |
# References: "Diario de Monterrey" <www.diariodemonterrey.com/index.asp>
|
|
2306 |
# Palabra <http://palabra.infosel.com/010331/primera/ppri3101.pdf> (2001-03-31)
|
|
2307 |
|
|
2308 |
# From Reuters (2001-09-04):
|
|
2309 |
# Mexico's Supreme Court on Tuesday declared that daylight savings was
|
|
2310 |
# unconstitutional in Mexico City, creating the possibility the
|
|
2311 |
# capital will be in a different time zone from the rest of the nation
|
|
2312 |
# next year.... The Supreme Court's ruling takes effect at 2:00
|
|
2313 |
# a.m. (0800 GMT) on Sept. 30, when Mexico is scheduled to revert to
|
|
2314 |
# standard time. "This is so residents of the Federal District are not
|
|
2315 |
# subject to unexpected time changes," a statement from the court said.
|
|
2316 |
|
|
2317 |
# From Jesper Norgaard Welen (2002-03-12):
|
|
2318 |
# ... consulting my local grocery store(!) and my coworkers, they all insisted
|
|
2319 |
# that a new decision had been made to reinstate US style DST in Mexico....
|
|
2320 |
# http://www.conae.gob.mx/ahorro/horaver2001_m1_2002.html (2002-02-20)
|
|
2321 |
# confirms this. Sonora as usual is the only state where DST is not applied.
|
|
2322 |
|
|
2323 |
# From Steffen Thorsen (2009-12-28):
|
|
2324 |
#
|
|
2325 |
# Steffen Thorsen wrote:
|
|
2326 |
# > Mexico's House of Representatives has approved a proposal for northern
|
|
2327 |
# > Mexico's border cities to share the same daylight saving schedule as
|
|
2328 |
# > the United States.
|
|
2329 |
# Now this has passed both the Congress and the Senate, so starting from
|
|
2330 |
# 2010, some border regions will be the same:
|
|
2331 |
# <a href="http://www.signonsandiego.com/news/2009/dec/28/clocks-will-match-both-sides-border/">
|
|
2332 |
# http://www.signonsandiego.com/news/2009/dec/28/clocks-will-match-both-sides-border/
|
|
2333 |
# </a>
|
|
2334 |
# <a href="http://www.elmananarey.com/diario/noticia/nacional/noticias/empatan_horario_de_frontera_con_eu/621939">
|
|
2335 |
# http://www.elmananarey.com/diario/noticia/nacional/noticias/empatan_horario_de_frontera_con_eu/621939
|
|
2336 |
# </a>
|
|
2337 |
# (Spanish)
|
|
2338 |
#
|
|
2339 |
# Could not find the new law text, but the proposed law text changes are here:
|
|
2340 |
# <a href="http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/20091210-V.pdf">
|
|
2341 |
# http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/20091210-V.pdf
|
|
2342 |
# </a>
|
|
2343 |
# (Gaceta Parlamentaria)
|
|
2344 |
#
|
|
2345 |
# There is also a list of the votes here:
|
|
2346 |
# <a href="http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/V2-101209.html">
|
|
2347 |
# http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/V2-101209.html
|
|
2348 |
# </a>
|
|
2349 |
#
|
|
2350 |
# Our page:
|
|
2351 |
# <a href="http://www.timeanddate.com/news/time/north-mexico-dst-change.html">
|
|
2352 |
# http://www.timeanddate.com/news/time/north-mexico-dst-change.html
|
|
2353 |
# </a>
|
|
2354 |
|
|
2355 |
# From Arthur David Olson (2010-01-20):
|
|
2356 |
# The page
|
|
2357 |
# <a href="http://dof.gob.mx/nota_detalle.php?codigo=5127480&fecha=06/01/2010">
|
|
2358 |
# http://dof.gob.mx/nota_detalle.php?codigo=5127480&fecha=06/01/2010
|
|
2359 |
# </a>
|
|
2360 |
# includes this text:
|
|
2361 |
# En los municipios fronterizos de Tijuana y Mexicali en Baja California;
|
|
2362 |
# Juárez y Ojinaga en Chihuahua; Acuña y Piedras Negras en Coahuila;
|
|
2363 |
# Anáhuac en Nuevo León; y Nuevo Laredo, Reynosa y Matamoros en
|
|
2364 |
# Tamaulipas, la aplicación de este horario estacional surtirá efecto
|
|
2365 |
# desde las dos horas del segundo domingo de marzo y concluirá a las dos
|
|
2366 |
# horas del primer domingo de noviembre.
|
|
2367 |
# En los municipios fronterizos que se encuentren ubicados en la franja
|
|
2368 |
# fronteriza norte en el territorio comprendido entre la línea
|
|
2369 |
# internacional y la línea paralela ubicada a una distancia de veinte
|
|
2370 |
# kilómetros, así como la Ciudad de Ensenada, Baja California, hacia el
|
|
2371 |
# interior del país, la aplicación de este horario estacional surtirá
|
|
2372 |
# efecto desde las dos horas del segundo domingo de marzo y concluirá a
|
|
2373 |
# las dos horas del primer domingo de noviembre.
|
|
2374 |
|
|
2375 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
2376 |
Rule Mexico 1939 only - Feb 5 0:00 1:00 D
|
|
2377 |
Rule Mexico 1939 only - Jun 25 0:00 0 S
|
|
2378 |
Rule Mexico 1940 only - Dec 9 0:00 1:00 D
|
|
2379 |
Rule Mexico 1941 only - Apr 1 0:00 0 S
|
|
2380 |
Rule Mexico 1943 only - Dec 16 0:00 1:00 W # War
|
|
2381 |
Rule Mexico 1944 only - May 1 0:00 0 S
|
|
2382 |
Rule Mexico 1950 only - Feb 12 0:00 1:00 D
|
|
2383 |
Rule Mexico 1950 only - Jul 30 0:00 0 S
|
|
2384 |
Rule Mexico 1996 2000 - Apr Sun>=1 2:00 1:00 D
|
|
2385 |
Rule Mexico 1996 2000 - Oct lastSun 2:00 0 S
|
|
2386 |
Rule Mexico 2001 only - May Sun>=1 2:00 1:00 D
|
|
2387 |
Rule Mexico 2001 only - Sep lastSun 2:00 0 S
|
|
2388 |
Rule Mexico 2002 max - Apr Sun>=1 2:00 1:00 D
|
|
2389 |
Rule Mexico 2002 max - Oct lastSun 2:00 0 S
|
|
2390 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
2391 |
# Quintana Roo
|
|
2392 |
Zone America/Cancun -5:47:04 - LMT 1922 Jan 1 0:12:56
|
|
2393 |
-6:00 - CST 1981 Dec 23
|
|
2394 |
-5:00 Mexico E%sT 1998 Aug 2 2:00
|
|
2395 |
-6:00 Mexico C%sT
|
|
2396 |
# Campeche, Yucatan
|
|
2397 |
Zone America/Merida -5:58:28 - LMT 1922 Jan 1 0:01:32
|
|
2398 |
-6:00 - CST 1981 Dec 23
|
|
2399 |
-5:00 - EST 1982 Dec 2
|
|
2400 |
-6:00 Mexico C%sT
|
|
2401 |
# Coahuila, Durango, Nuevo Leon, Tamaulipas (near US border)
|
|
2402 |
Zone America/Matamoros -6:40:00 - LMT 1921 Dec 31 23:20:00
|
|
2403 |
-6:00 - CST 1988
|
|
2404 |
-6:00 US C%sT 1989
|
|
2405 |
-6:00 Mexico C%sT 2010
|
|
2406 |
-6:00 US C%sT
|
|
2407 |
# Coahuila, Durango, Nuevo Leon, Tamaulipas (away from US border)
|
|
2408 |
Zone America/Monterrey -6:41:16 - LMT 1921 Dec 31 23:18:44
|
|
2409 |
-6:00 - CST 1988
|
|
2410 |
-6:00 US C%sT 1989
|
|
2411 |
-6:00 Mexico C%sT
|
|
2412 |
# Central Mexico
|
|
2413 |
Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24
|
|
2414 |
-7:00 - MST 1927 Jun 10 23:00
|
|
2415 |
-6:00 - CST 1930 Nov 15
|
|
2416 |
-7:00 - MST 1931 May 1 23:00
|
|
2417 |
-6:00 - CST 1931 Oct
|
|
2418 |
-7:00 - MST 1932 Apr 1
|
|
2419 |
-6:00 Mexico C%sT 2001 Sep 30 02:00
|
|
2420 |
-6:00 - CST 2002 Feb 20
|
|
2421 |
-6:00 Mexico C%sT
|
|
2422 |
# Chihuahua (near US border)
|
|
2423 |
Zone America/Ojinaga -6:57:40 - LMT 1922 Jan 1 0:02:20
|
|
2424 |
-7:00 - MST 1927 Jun 10 23:00
|
|
2425 |
-6:00 - CST 1930 Nov 15
|
|
2426 |
-7:00 - MST 1931 May 1 23:00
|
|
2427 |
-6:00 - CST 1931 Oct
|
|
2428 |
-7:00 - MST 1932 Apr 1
|
|
2429 |
-6:00 - CST 1996
|
|
2430 |
-6:00 Mexico C%sT 1998
|
|
2431 |
-6:00 - CST 1998 Apr Sun>=1 3:00
|
|
2432 |
-7:00 Mexico M%sT 2010
|
|
2433 |
-7:00 US M%sT
|
|
2434 |
# Chihuahua (away from US border)
|
|
2435 |
Zone America/Chihuahua -7:04:20 - LMT 1921 Dec 31 23:55:40
|
|
2436 |
-7:00 - MST 1927 Jun 10 23:00
|
|
2437 |
-6:00 - CST 1930 Nov 15
|
|
2438 |
-7:00 - MST 1931 May 1 23:00
|
|
2439 |
-6:00 - CST 1931 Oct
|
|
2440 |
-7:00 - MST 1932 Apr 1
|
|
2441 |
-6:00 - CST 1996
|
|
2442 |
-6:00 Mexico C%sT 1998
|
|
2443 |
-6:00 - CST 1998 Apr Sun>=1 3:00
|
|
2444 |
-7:00 Mexico M%sT
|
|
2445 |
# Sonora
|
|
2446 |
Zone America/Hermosillo -7:23:52 - LMT 1921 Dec 31 23:36:08
|
|
2447 |
-7:00 - MST 1927 Jun 10 23:00
|
|
2448 |
-6:00 - CST 1930 Nov 15
|
|
2449 |
-7:00 - MST 1931 May 1 23:00
|
|
2450 |
-6:00 - CST 1931 Oct
|
|
2451 |
-7:00 - MST 1932 Apr 1
|
|
2452 |
-6:00 - CST 1942 Apr 24
|
|
2453 |
-7:00 - MST 1949 Jan 14
|
|
2454 |
-8:00 - PST 1970
|
|
2455 |
-7:00 Mexico M%sT 1999
|
|
2456 |
-7:00 - MST
|
|
2457 |
|
|
2458 |
# From Alexander Krivenyshev (2010-04-21):
|
|
2459 |
# According to news, Bahía de Banderas (Mexican state of Nayarit)
|
|
2460 |
# changed time zone UTC-7 to new time zone UTC-6 on April 4, 2010 (to
|
|
2461 |
# share the same time zone as nearby city Puerto Vallarta, Jalisco).
|
|
2462 |
#
|
|
2463 |
# (Spanish)
|
|
2464 |
# Bahía de Banderas homologa su horario al del centro del
|
|
2465 |
# país, a partir de este domingo
|
|
2466 |
# <a href="http://www.nayarit.gob.mx/notes.asp?id=20748">
|
|
2467 |
# http://www.nayarit.gob.mx/notes.asp?id=20748
|
|
2468 |
# </a>
|
|
2469 |
#
|
|
2470 |
# Bahía de Banderas homologa su horario con el del Centro del
|
|
2471 |
# País
|
|
2472 |
# <a href="http://www.bahiadebanderas.gob.mx/principal/index.php?option=com_content&view=article&id=261:bahia-de-banderas-homologa-su-horario-con-el-del-centro-del-pais&catid=42:comunicacion-social&Itemid=50">
|
|
2473 |
# http://www.bahiadebanderas.gob.mx/principal/index.php?option=com_content&view=article&id=261:bahia-de-banderas-homologa-su-horario-con-el-del-centro-del-pais&catid=42:comunicacion-social&Itemid=50"
|
|
2474 |
# </a>
|
|
2475 |
#
|
|
2476 |
# (English)
|
|
2477 |
# Puerto Vallarta and Bahía de Banderas: One Time Zone
|
|
2478 |
# <a href="http://virtualvallarta.com/puertovallarta/puertovallarta/localnews/2009-12-03-Puerto-Vallarta-and-Bahia-de-Banderas-One-Time-Zone.shtml">
|
|
2479 |
# http://virtualvallarta.com/puertovallarta/puertovallarta/localnews/2009-12-03-Puerto-Vallarta-and-Bahia-de-Banderas-One-Time-Zone.shtml
|
|
2480 |
# </a>
|
|
2481 |
#
|
|
2482 |
# or
|
|
2483 |
# <a href="http://www.worldtimezone.com/dst_news/dst_news_mexico08.html">
|
|
2484 |
# http://www.worldtimezone.com/dst_news/dst_news_mexico08.html
|
|
2485 |
# </a>
|
|
2486 |
#
|
|
2487 |
# "Mexico's Senate approved the amendments to the Mexican Schedule System that
|
|
2488 |
# will allow Bahía de Banderas and Puerto Vallarta to share the same time
|
|
2489 |
# zone ..."
|
|
2490 |
# Baja California Sur, Nayarit, Sinaloa
|
|
2491 |
|
|
2492 |
# From Arthur David Olson (2010-05-01):
|
|
2493 |
# Use "Bahia_Banderas" to keep the name to fourteen characters.
|
|
2494 |
|
|
2495 |
Zone America/Mazatlan -7:05:40 - LMT 1921 Dec 31 23:54:20
|
|
2496 |
-7:00 - MST 1927 Jun 10 23:00
|
|
2497 |
-6:00 - CST 1930 Nov 15
|
|
2498 |
-7:00 - MST 1931 May 1 23:00
|
|
2499 |
-6:00 - CST 1931 Oct
|
|
2500 |
-7:00 - MST 1932 Apr 1
|
|
2501 |
-6:00 - CST 1942 Apr 24
|
|
2502 |
-7:00 - MST 1949 Jan 14
|
|
2503 |
-8:00 - PST 1970
|
|
2504 |
-7:00 Mexico M%sT
|
|
2505 |
|
|
2506 |
Zone America/Bahia_Banderas -7:01:00 - LMT 1921 Dec 31 23:59:00
|
|
2507 |
-7:00 - MST 1927 Jun 10 23:00
|
|
2508 |
-6:00 - CST 1930 Nov 15
|
|
2509 |
-7:00 - MST 1931 May 1 23:00
|
|
2510 |
-6:00 - CST 1931 Oct
|
|
2511 |
-7:00 - MST 1932 Apr 1
|
|
2512 |
-6:00 - CST 1942 Apr 24
|
|
2513 |
-7:00 - MST 1949 Jan 14
|
|
2514 |
-8:00 - PST 1970
|
|
2515 |
-7:00 Mexico M%sT 2010 Apr 4 2:00
|
|
2516 |
-6:00 Mexico C%sT
|
|
2517 |
|
|
2518 |
# Baja California (near US border)
|
|
2519 |
Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56
|
|
2520 |
-7:00 - MST 1924
|
|
2521 |
-8:00 - PST 1927 Jun 10 23:00
|
|
2522 |
-7:00 - MST 1930 Nov 15
|
|
2523 |
-8:00 - PST 1931 Apr 1
|
|
2524 |
-8:00 1:00 PDT 1931 Sep 30
|
|
2525 |
-8:00 - PST 1942 Apr 24
|
|
2526 |
-8:00 1:00 PWT 1945 Aug 14 23:00u
|
|
2527 |
-8:00 1:00 PPT 1945 Nov 12 # Peace
|
|
2528 |
-8:00 - PST 1948 Apr 5
|
|
2529 |
-8:00 1:00 PDT 1949 Jan 14
|
|
2530 |
-8:00 - PST 1954
|
|
2531 |
-8:00 CA P%sT 1961
|
|
2532 |
-8:00 - PST 1976
|
|
2533 |
-8:00 US P%sT 1996
|
|
2534 |
-8:00 Mexico P%sT 2001
|
|
2535 |
-8:00 US P%sT 2002 Feb 20
|
|
2536 |
-8:00 Mexico P%sT 2010
|
|
2537 |
-8:00 US P%sT
|
|
2538 |
# Baja California (away from US border)
|
|
2539 |
Zone America/Santa_Isabel -7:39:28 - LMT 1922 Jan 1 0:20:32
|
|
2540 |
-7:00 - MST 1924
|
|
2541 |
-8:00 - PST 1927 Jun 10 23:00
|
|
2542 |
-7:00 - MST 1930 Nov 15
|
|
2543 |
-8:00 - PST 1931 Apr 1
|
|
2544 |
-8:00 1:00 PDT 1931 Sep 30
|
|
2545 |
-8:00 - PST 1942 Apr 24
|
|
2546 |
-8:00 1:00 PWT 1945 Aug 14 23:00u
|
|
2547 |
-8:00 1:00 PPT 1945 Nov 12 # Peace
|
|
2548 |
-8:00 - PST 1948 Apr 5
|
|
2549 |
-8:00 1:00 PDT 1949 Jan 14
|
|
2550 |
-8:00 - PST 1954
|
|
2551 |
-8:00 CA P%sT 1961
|
|
2552 |
-8:00 - PST 1976
|
|
2553 |
-8:00 US P%sT 1996
|
|
2554 |
-8:00 Mexico P%sT 2001
|
|
2555 |
-8:00 US P%sT 2002 Feb 20
|
|
2556 |
-8:00 Mexico P%sT
|
|
2557 |
# From Paul Eggert (2006-03-22):
|
|
2558 |
# Formerly there was an America/Ensenada zone, which differed from
|
|
2559 |
# America/Tijuana only in that it did not observe DST from 1976
|
|
2560 |
# through 1995. This was as per Shanks (1999). But Shanks & Pottenger say
|
|
2561 |
# Ensenada did not observe DST from 1948 through 1975. Guy Harris reports
|
|
2562 |
# that the 1987 OAG says "Only Ensenada, Mexicale, San Felipe and
|
|
2563 |
# Tijuana observe DST," which agrees with Shanks & Pottenger but implies that
|
|
2564 |
# DST-observance was a town-by-town matter back then. This concerns
|
|
2565 |
# data after 1970 so most likely there should be at least one Zone
|
|
2566 |
# other than America/Tijuana for Baja, but it's not clear yet what its
|
|
2567 |
# name or contents should be.
|
|
2568 |
#
|
|
2569 |
# Revillagigedo Is
|
|
2570 |
# no information
|
|
2571 |
|
|
2572 |
###############################################################################
|
|
2573 |
|
|
2574 |
# Anguilla
|
20867
|
2575 |
# See 'southamerica'.
|
15658
|
2576 |
|
|
2577 |
# Antigua and Barbuda
|
|
2578 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
2579 |
Zone America/Antigua -4:07:12 - LMT 1912 Mar 2
|
|
2580 |
-5:00 - EST 1951
|
|
2581 |
-4:00 - AST
|
|
2582 |
|
|
2583 |
# Bahamas
|
|
2584 |
#
|
17464
|
2585 |
# For 1899 Milne gives -5:09:29.5; round that.
|
|
2586 |
#
|
15658
|
2587 |
# From Sue Williams (2006-12-07):
|
|
2588 |
# The Bahamas announced about a month ago that they plan to change their DST
|
|
2589 |
# rules to sync with the U.S. starting in 2007....
|
|
2590 |
# http://www.jonesbahamas.com/?c=45&a=10412
|
|
2591 |
|
|
2592 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
2593 |
Rule Bahamas 1964 1975 - Oct lastSun 2:00 0 S
|
|
2594 |
Rule Bahamas 1964 1975 - Apr lastSun 2:00 1:00 D
|
|
2595 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
17464
|
2596 |
Zone America/Nassau -5:09:30 - LMT 1912 Mar 2
|
15658
|
2597 |
-5:00 Bahamas E%sT 1976
|
|
2598 |
-5:00 US E%sT
|
|
2599 |
|
|
2600 |
# Barbados
|
17464
|
2601 |
|
|
2602 |
# For 1899 Milne gives -3:58:29.2; round that.
|
|
2603 |
|
15658
|
2604 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
2605 |
Rule Barb 1977 only - Jun 12 2:00 1:00 D
|
|
2606 |
Rule Barb 1977 1978 - Oct Sun>=1 2:00 0 S
|
|
2607 |
Rule Barb 1978 1980 - Apr Sun>=15 2:00 1:00 D
|
|
2608 |
Rule Barb 1979 only - Sep 30 2:00 0 S
|
|
2609 |
Rule Barb 1980 only - Sep 25 2:00 0 S
|
|
2610 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
17464
|
2611 |
Zone America/Barbados -3:58:29 - LMT 1924 # Bridgetown
|
|
2612 |
-3:58:29 - BMT 1932 # Bridgetown Mean Time
|
15658
|
2613 |
-4:00 Barb A%sT
|
|
2614 |
|
|
2615 |
# Belize
|
|
2616 |
# Whitman entirely disagrees with Shanks; go with Shanks & Pottenger.
|
|
2617 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
2618 |
Rule Belize 1918 1942 - Oct Sun>=2 0:00 0:30 HD
|
|
2619 |
Rule Belize 1919 1943 - Feb Sun>=9 0:00 0 S
|
|
2620 |
Rule Belize 1973 only - Dec 5 0:00 1:00 D
|
|
2621 |
Rule Belize 1974 only - Feb 9 0:00 0 S
|
|
2622 |
Rule Belize 1982 only - Dec 18 0:00 1:00 D
|
|
2623 |
Rule Belize 1983 only - Feb 12 0:00 0 S
|
|
2624 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
2625 |
Zone America/Belize -5:52:48 - LMT 1912 Apr
|
|
2626 |
-6:00 Belize C%sT
|
|
2627 |
|
|
2628 |
# Bermuda
|
|
2629 |
|
17464
|
2630 |
# For 1899 Milne gives -4:19:18.3 as the meridian of the clock tower,
|
|
2631 |
# Bermuda dockyard, Ireland I; round that.
|
|
2632 |
|
15658
|
2633 |
# From Dan Jones, reporting in The Royal Gazette (2006-06-26):
|
|
2634 |
|
|
2635 |
# Next year, however, clocks in the US will go forward on the second Sunday
|
|
2636 |
# in March, until the first Sunday in November. And, after the Time Zone
|
|
2637 |
# (Seasonal Variation) Bill 2006 was passed in the House of Assembly on
|
|
2638 |
# Friday, the same thing will happen in Bermuda.
|
|
2639 |
# http://www.theroyalgazette.com/apps/pbcs.dll/article?AID=/20060529/NEWS/105290135
|
|
2640 |
|
|
2641 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
17464
|
2642 |
Zone Atlantic/Bermuda -4:19:18 - LMT 1930 Jan 1 2:00 # Hamilton
|
15658
|
2643 |
-4:00 - AST 1974 Apr 28 2:00
|
20867
|
2644 |
-4:00 Canada A%sT 1976
|
15658
|
2645 |
-4:00 US A%sT
|
|
2646 |
|
|
2647 |
# Cayman Is
|
|
2648 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
2649 |
Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown
|
20867
|
2650 |
-5:07:11 - KMT 1912 Feb # Kingston Mean Time
|
15658
|
2651 |
-5:00 - EST
|
|
2652 |
|
|
2653 |
# Costa Rica
|
17464
|
2654 |
|
|
2655 |
# Milne gives -5:36:13.3 as San Jose mean time; round to nearest.
|
|
2656 |
|
15658
|
2657 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
2658 |
Rule CR 1979 1980 - Feb lastSun 0:00 1:00 D
|
|
2659 |
Rule CR 1979 1980 - Jun Sun>=1 0:00 0 S
|
|
2660 |
Rule CR 1991 1992 - Jan Sat>=15 0:00 1:00 D
|
|
2661 |
# IATA SSIM (1991-09) says the following was at 1:00;
|
|
2662 |
# go with Shanks & Pottenger.
|
|
2663 |
Rule CR 1991 only - Jul 1 0:00 0 S
|
|
2664 |
Rule CR 1992 only - Mar 15 0:00 0 S
|
20867
|
2665 |
# There are too many San Joses elsewhere, so we'll use 'Costa Rica'.
|
15658
|
2666 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
17464
|
2667 |
Zone America/Costa_Rica -5:36:13 - LMT 1890 # San Jose
|
|
2668 |
-5:36:13 - SJMT 1921 Jan 15 # San Jose Mean Time
|
15658
|
2669 |
-6:00 CR C%sT
|
|
2670 |
# Coco
|
|
2671 |
# no information; probably like America/Costa_Rica
|
|
2672 |
|
|
2673 |
# Cuba
|
|
2674 |
|
17464
|
2675 |
# From Paul Eggert (2013-02-21):
|
|
2676 |
# Milne gives -5:28:50.45 for the observatory at Havana, -5:29:23.57
|
|
2677 |
# for the port, and -5:30 for meteorological observations.
|
|
2678 |
# For now, stick with Shanks & Pottenger.
|
|
2679 |
|
15658
|
2680 |
# From Arthur David Olson (1999-03-29):
|
|
2681 |
# The 1999-03-28 exhibition baseball game held in Havana, Cuba, between
|
|
2682 |
# the Cuban National Team and the Baltimore Orioles was carried live on
|
|
2683 |
# the Orioles Radio Network, including affiliate WTOP in Washington, DC.
|
|
2684 |
# During the game, play-by-play announcer Jim Hunter noted that
|
|
2685 |
# "We'll be losing two hours of sleep...Cuba switched to Daylight Saving
|
|
2686 |
# Time today." (The "two hour" remark referred to losing one hour of
|
|
2687 |
# sleep on 1999-03-28--when the announcers were in Cuba as it switched
|
|
2688 |
# to DST--and one more hour on 1999-04-04--when the announcers will have
|
|
2689 |
# returned to Baltimore, which switches on that date.)
|
|
2690 |
|
22616
|
2691 |
# From Steffen Thorsen (2013-11-11):
|
|
2692 |
# DST start in Cuba in 2004 ... does not follow the same rules as the
|
|
2693 |
# years before. The correct date should be Sunday 2004-03-28 00:00 ...
|
|
2694 |
# https://web.archive.org/web/20040402060750/http://www.granma.cu/espanol/2004/marzo/sab27/reloj.html
|
|
2695 |
|
15658
|
2696 |
# From Evert van der Veer via Steffen Thorsen (2004-10-28):
|
|
2697 |
# Cuba is not going back to standard time this year.
|
|
2698 |
# From Paul Eggert (2006-03-22):
|
|
2699 |
# http://www.granma.cu/ingles/2004/septiembre/juev30/41medid-i.html
|
|
2700 |
# says that it's due to a problem at the Antonio Guiteras
|
|
2701 |
# thermoelectric plant, and says "This October there will be no return
|
|
2702 |
# to normal hours (after daylight saving time)".
|
|
2703 |
# For now, let's assume that it's a temporary measure.
|
|
2704 |
|
|
2705 |
# From Carlos A. Carnero Delgado (2005-11-12):
|
|
2706 |
# This year (just like in 2004-2005) there's no change in time zone
|
|
2707 |
# adjustment in Cuba. We will stay in daylight saving time:
|
|
2708 |
# http://www.granma.cu/espanol/2005/noviembre/mier9/horario.html
|
|
2709 |
|
|
2710 |
# From Jesper Norgaard Welen (2006-10-21):
|
|
2711 |
# An article in GRANMA INTERNACIONAL claims that Cuba will end
|
|
2712 |
# the 3 years of permanent DST next weekend, see
|
|
2713 |
# http://www.granma.cu/ingles/2006/octubre/lun16/43horario.html
|
|
2714 |
# "On Saturday night, October 28 going into Sunday, October 29, at 01:00,
|
|
2715 |
# watches should be set back one hour -- going back to 00:00 hours -- returning
|
|
2716 |
# to the normal schedule....
|
|
2717 |
|
|
2718 |
# From Paul Eggert (2007-03-02):
|
|
2719 |
# http://www.granma.cubaweb.cu/english/news/art89.html, dated yesterday,
|
|
2720 |
# says Cuban clocks will advance at midnight on March 10.
|
|
2721 |
# For lack of better information, assume Cuba will use US rules,
|
|
2722 |
# except that it switches at midnight standard time as usual.
|
|
2723 |
#
|
|
2724 |
# From Steffen Thorsen (2007-10-25):
|
|
2725 |
# Carlos Alberto Fonseca Arauz informed me that Cuba will end DST one week
|
|
2726 |
# earlier - on the last Sunday of October, just like in 2006.
|
|
2727 |
#
|
|
2728 |
# He supplied these references:
|
|
2729 |
#
|
|
2730 |
# http://www.prensalatina.com.mx/article.asp?ID=%7B4CC32C1B-A9F7-42FB-8A07-8631AFC923AF%7D&language=ES
|
|
2731 |
# http://actualidad.terra.es/sociedad/articulo/cuba_llama_ahorrar_energia_cambio_1957044.htm
|
|
2732 |
#
|
|
2733 |
# From Alex Kryvenishev (2007-10-25):
|
|
2734 |
# Here is also article from Granma (Cuba):
|
|
2735 |
#
|
|
2736 |
# [Regira] el Horario Normal desde el [proximo] domingo 28 de octubre
|
|
2737 |
# http://www.granma.cubaweb.cu/2007/10/24/nacional/artic07.html
|
|
2738 |
#
|
|
2739 |
# http://www.worldtimezone.com/dst_news/dst_news_cuba03.html
|
|
2740 |
|
|
2741 |
# From Arthur David Olson (2008-03-09):
|
|
2742 |
# I'm in Maryland which is now observing United States Eastern Daylight
|
|
2743 |
# Time. At 9:44 local time I used RealPlayer to listen to
|
|
2744 |
# <a href="http://media.enet.cu/radioreloj">
|
|
2745 |
# http://media.enet.cu/radioreloj
|
|
2746 |
# </a>, a Cuban information station, and heard
|
|
2747 |
# the time announced as "ocho cuarenta y cuatro" ("eight forty-four"),
|
|
2748 |
# indicating that Cuba is still on standard time.
|
|
2749 |
|
|
2750 |
# From Steffen Thorsen (2008-03-12):
|
|
2751 |
# It seems that Cuba will start DST on Sunday, 2007-03-16...
|
|
2752 |
# It was announced yesterday, according to this source (in Spanish):
|
|
2753 |
# <a href="http://www.nnc.cubaweb.cu/marzo-2008/cien-1-11-3-08.htm">
|
|
2754 |
# http://www.nnc.cubaweb.cu/marzo-2008/cien-1-11-3-08.htm
|
|
2755 |
# </a>
|
|
2756 |
#
|
|
2757 |
# Some more background information is posted here:
|
|
2758 |
# <a href="http://www.timeanddate.com/news/time/cuba-starts-dst-march-16.html">
|
|
2759 |
# http://www.timeanddate.com/news/time/cuba-starts-dst-march-16.html
|
|
2760 |
# </a>
|
|
2761 |
#
|
|
2762 |
# The article also says that Cuba has been observing DST since 1963,
|
|
2763 |
# while Shanks (and tzdata) has 1965 as the first date (except in the
|
|
2764 |
# 1940's). Many other web pages in Cuba also claim that it has been
|
|
2765 |
# observed since 1963, but with the exception of 1970 - an exception
|
|
2766 |
# which is not present in tzdata/Shanks. So there is a chance we need to
|
|
2767 |
# change some historic records as well.
|
|
2768 |
#
|
|
2769 |
# One example:
|
|
2770 |
# <a href="http://www.radiohc.cu/espanol/noticias/mar07/11mar/hor.htm">
|
|
2771 |
# http://www.radiohc.cu/espanol/noticias/mar07/11mar/hor.htm
|
|
2772 |
# </a>
|
|
2773 |
|
|
2774 |
# From Jesper Norgaard Welen (2008-03-13):
|
|
2775 |
# The Cuban time change has just been confirmed on the most authoritative
|
|
2776 |
# web site, the Granma. Please check out
|
|
2777 |
# <a href="http://www.granma.cubaweb.cu/2008/03/13/nacional/artic10.html">
|
|
2778 |
# http://www.granma.cubaweb.cu/2008/03/13/nacional/artic10.html
|
|
2779 |
# </a>
|
|
2780 |
#
|
|
2781 |
# Basically as expected after Steffen Thorsens information, the change
|
|
2782 |
# will take place midnight between Saturday and Sunday.
|
|
2783 |
|
|
2784 |
# From Arthur David Olson (2008-03-12):
|
|
2785 |
# Assume Sun>=15 (third Sunday) going forward.
|
|
2786 |
|
|
2787 |
# From Alexander Krivenyshev (2009-03-04)
|
|
2788 |
# According to the Radio Reloj - Cuba will start Daylight Saving Time on
|
|
2789 |
# midnight between Saturday, March 07, 2009 and Sunday, March 08, 2009-
|
|
2790 |
# not on midnight March 14 / March 15 as previously thought.
|
|
2791 |
#
|
|
2792 |
# <a href="http://www.worldtimezone.com/dst_news/dst_news_cuba05.html">
|
|
2793 |
# http://www.worldtimezone.com/dst_news/dst_news_cuba05.html
|
|
2794 |
# (in Spanish)
|
|
2795 |
# </a>
|
|
2796 |
|
|
2797 |
# From Arthur David Olson (2009-03-09)
|
|
2798 |
# I listened over the Internet to
|
|
2799 |
# <a href="http://media.enet.cu/readioreloj">
|
|
2800 |
# http://media.enet.cu/readioreloj
|
|
2801 |
# </a>
|
|
2802 |
# this morning; when it was 10:05 a. m. here in Bethesda, Maryland the
|
|
2803 |
# the time was announced as "diez cinco"--the same time as here, indicating
|
|
2804 |
# that has indeed switched to DST. Assume second Sunday from 2009 forward.
|
|
2805 |
|
|
2806 |
# From Steffen Thorsen (2011-03-08):
|
|
2807 |
# Granma announced that Cuba is going to start DST on 2011-03-20 00:00:00
|
|
2808 |
# this year. Nothing about the end date known so far (if that has
|
|
2809 |
# changed at all).
|
|
2810 |
#
|
|
2811 |
# Source:
|
|
2812 |
# <a href="http://granma.co.cu/2011/03/08/nacional/artic01.html">
|
|
2813 |
# http://granma.co.cu/2011/03/08/nacional/artic01.html
|
|
2814 |
# </a>
|
|
2815 |
#
|
|
2816 |
# Our info:
|
|
2817 |
# <a href="http://www.timeanddate.com/news/time/cuba-starts-dst-2011.html">
|
|
2818 |
# http://www.timeanddate.com/news/time/cuba-starts-dst-2011.html
|
|
2819 |
# </a>
|
|
2820 |
#
|
|
2821 |
# From Steffen Thorsen (2011-10-30)
|
|
2822 |
# Cuba will end DST two weeks later this year. Instead of going back
|
|
2823 |
# tonight, it has been delayed to 2011-11-13 at 01:00.
|
|
2824 |
#
|
|
2825 |
# One source (Spanish)
|
|
2826 |
# <a href="http://www.radioangulo.cu/noticias/cuba/17105-cuba-restablecera-el-horario-del-meridiano-de-greenwich.html">
|
|
2827 |
# http://www.radioangulo.cu/noticias/cuba/17105-cuba-restablecera-el-horario-del-meridiano-de-greenwich.html
|
|
2828 |
# </a>
|
|
2829 |
#
|
|
2830 |
# Our page:
|
|
2831 |
# <a href="http://www.timeanddate.com/news/time/cuba-time-changes-2011.html">
|
|
2832 |
# http://www.timeanddate.com/news/time/cuba-time-changes-2011.html
|
|
2833 |
# </a>
|
|
2834 |
#
|
|
2835 |
# From Steffen Thorsen (2012-03-01)
|
|
2836 |
# According to Radio Reloj, Cuba will start DST on Midnight between March
|
|
2837 |
# 31 and April 1.
|
|
2838 |
#
|
|
2839 |
# Radio Reloj has the following info (Spanish):
|
|
2840 |
# <a href="http://www.radioreloj.cu/index.php/noticias-radio-reloj/71-miscelaneas/7529-cuba-aplicara-el-horario-de-verano-desde-el-1-de-abril">
|
|
2841 |
# http://www.radioreloj.cu/index.php/noticias-radio-reloj/71-miscelaneas/7529-cuba-aplicara-el-horario-de-verano-desde-el-1-de-abril
|
|
2842 |
# </a>
|
|
2843 |
#
|
|
2844 |
# Our info on it:
|
|
2845 |
# <a href="http://www.timeanddate.com/news/time/cuba-starts-dst-2012.html">
|
|
2846 |
# http://www.timeanddate.com/news/time/cuba-starts-dst-2012.html
|
|
2847 |
# </a>
|
|
2848 |
|
|
2849 |
# From Steffen Thorsen (2012-11-03):
|
|
2850 |
# Radio Reloj and many other sources report that Cuba is changing back
|
|
2851 |
# to standard time on 2012-11-04:
|
|
2852 |
# http://www.radioreloj.cu/index.php/noticias-radio-reloj/36-nacionales/9961-regira-horario-normal-en-cuba-desde-el-domingo-cuatro-de-noviembre
|
|
2853 |
# From Paul Eggert (2012-11-03):
|
|
2854 |
# For now, assume the future rule is first Sunday in November.
|
|
2855 |
|
|
2856 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
2857 |
Rule Cuba 1928 only - Jun 10 0:00 1:00 D
|
|
2858 |
Rule Cuba 1928 only - Oct 10 0:00 0 S
|
|
2859 |
Rule Cuba 1940 1942 - Jun Sun>=1 0:00 1:00 D
|
|
2860 |
Rule Cuba 1940 1942 - Sep Sun>=1 0:00 0 S
|
|
2861 |
Rule Cuba 1945 1946 - Jun Sun>=1 0:00 1:00 D
|
|
2862 |
Rule Cuba 1945 1946 - Sep Sun>=1 0:00 0 S
|
|
2863 |
Rule Cuba 1965 only - Jun 1 0:00 1:00 D
|
|
2864 |
Rule Cuba 1965 only - Sep 30 0:00 0 S
|
|
2865 |
Rule Cuba 1966 only - May 29 0:00 1:00 D
|
|
2866 |
Rule Cuba 1966 only - Oct 2 0:00 0 S
|
|
2867 |
Rule Cuba 1967 only - Apr 8 0:00 1:00 D
|
|
2868 |
Rule Cuba 1967 1968 - Sep Sun>=8 0:00 0 S
|
|
2869 |
Rule Cuba 1968 only - Apr 14 0:00 1:00 D
|
|
2870 |
Rule Cuba 1969 1977 - Apr lastSun 0:00 1:00 D
|
|
2871 |
Rule Cuba 1969 1971 - Oct lastSun 0:00 0 S
|
|
2872 |
Rule Cuba 1972 1974 - Oct 8 0:00 0 S
|
|
2873 |
Rule Cuba 1975 1977 - Oct lastSun 0:00 0 S
|
|
2874 |
Rule Cuba 1978 only - May 7 0:00 1:00 D
|
|
2875 |
Rule Cuba 1978 1990 - Oct Sun>=8 0:00 0 S
|
|
2876 |
Rule Cuba 1979 1980 - Mar Sun>=15 0:00 1:00 D
|
|
2877 |
Rule Cuba 1981 1985 - May Sun>=5 0:00 1:00 D
|
|
2878 |
Rule Cuba 1986 1989 - Mar Sun>=14 0:00 1:00 D
|
|
2879 |
Rule Cuba 1990 1997 - Apr Sun>=1 0:00 1:00 D
|
|
2880 |
Rule Cuba 1991 1995 - Oct Sun>=8 0:00s 0 S
|
|
2881 |
Rule Cuba 1996 only - Oct 6 0:00s 0 S
|
|
2882 |
Rule Cuba 1997 only - Oct 12 0:00s 0 S
|
|
2883 |
Rule Cuba 1998 1999 - Mar lastSun 0:00s 1:00 D
|
|
2884 |
Rule Cuba 1998 2003 - Oct lastSun 0:00s 0 S
|
22616
|
2885 |
Rule Cuba 2000 2003 - Apr Sun>=1 0:00s 1:00 D
|
|
2886 |
Rule Cuba 2004 only - Mar lastSun 0:00s 1:00 D
|
15658
|
2887 |
Rule Cuba 2006 2010 - Oct lastSun 0:00s 0 S
|
|
2888 |
Rule Cuba 2007 only - Mar Sun>=8 0:00s 1:00 D
|
|
2889 |
Rule Cuba 2008 only - Mar Sun>=15 0:00s 1:00 D
|
|
2890 |
Rule Cuba 2009 2010 - Mar Sun>=8 0:00s 1:00 D
|
|
2891 |
Rule Cuba 2011 only - Mar Sun>=15 0:00s 1:00 D
|
|
2892 |
Rule Cuba 2011 only - Nov 13 0:00s 0 S
|
|
2893 |
Rule Cuba 2012 only - Apr 1 0:00s 1:00 D
|
|
2894 |
Rule Cuba 2012 max - Nov Sun>=1 0:00s 0 S
|
|
2895 |
Rule Cuba 2013 max - Mar Sun>=8 0:00s 1:00 D
|
|
2896 |
|
|
2897 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
2898 |
Zone America/Havana -5:29:28 - LMT 1890
|
|
2899 |
-5:29:36 - HMT 1925 Jul 19 12:00 # Havana MT
|
|
2900 |
-5:00 Cuba C%sT
|
|
2901 |
|
|
2902 |
# Dominica
|
20867
|
2903 |
# See 'southamerica'.
|
15658
|
2904 |
|
|
2905 |
# Dominican Republic
|
|
2906 |
|
|
2907 |
# From Steffen Thorsen (2000-10-30):
|
|
2908 |
# Enrique Morales reported to me that the Dominican Republic has changed the
|
|
2909 |
# time zone to Eastern Standard Time as of Sunday 29 at 2 am....
|
|
2910 |
# http://www.listin.com.do/antes/261000/republica/princi.html
|
|
2911 |
|
|
2912 |
# From Paul Eggert (2000-12-04):
|
|
2913 |
# That URL (2000-10-26, in Spanish) says they planned to use US-style DST.
|
|
2914 |
|
|
2915 |
# From Rives McDow (2000-12-01):
|
|
2916 |
# Dominican Republic changed its mind and presidential decree on Tuesday,
|
|
2917 |
# November 28, 2000, with a new decree. On Sunday, December 3 at 1:00 AM the
|
|
2918 |
# Dominican Republic will be reverting to 8 hours from the International Date
|
|
2919 |
# Line, and will not be using DST in the foreseeable future. The reason they
|
|
2920 |
# decided to use DST was to be in synch with Puerto Rico, who was also going
|
|
2921 |
# to implement DST. When Puerto Rico didn't implement DST, the president
|
|
2922 |
# decided to revert.
|
|
2923 |
|
|
2924 |
|
|
2925 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
2926 |
Rule DR 1966 only - Oct 30 0:00 1:00 D
|
|
2927 |
Rule DR 1967 only - Feb 28 0:00 0 S
|
|
2928 |
Rule DR 1969 1973 - Oct lastSun 0:00 0:30 HD
|
|
2929 |
Rule DR 1970 only - Feb 21 0:00 0 S
|
|
2930 |
Rule DR 1971 only - Jan 20 0:00 0 S
|
|
2931 |
Rule DR 1972 1974 - Jan 21 0:00 0 S
|
|
2932 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
2933 |
Zone America/Santo_Domingo -4:39:36 - LMT 1890
|
|
2934 |
-4:40 - SDMT 1933 Apr 1 12:00 # S. Dom. MT
|
|
2935 |
-5:00 DR E%sT 1974 Oct 27
|
|
2936 |
-4:00 - AST 2000 Oct 29 02:00
|
|
2937 |
-5:00 US E%sT 2000 Dec 3 01:00
|
|
2938 |
-4:00 - AST
|
|
2939 |
|
|
2940 |
# El Salvador
|
|
2941 |
|
|
2942 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
2943 |
Rule Salv 1987 1988 - May Sun>=1 0:00 1:00 D
|
|
2944 |
Rule Salv 1987 1988 - Sep lastSun 0:00 0 S
|
|
2945 |
# There are too many San Salvadors elsewhere, so use America/El_Salvador
|
|
2946 |
# instead of America/San_Salvador.
|
|
2947 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
2948 |
Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador
|
|
2949 |
-6:00 Salv C%sT
|
|
2950 |
|
|
2951 |
# Grenada
|
|
2952 |
# Guadeloupe
|
|
2953 |
# St Barthelemy
|
|
2954 |
# St Martin (French part)
|
20867
|
2955 |
# See 'southamerica'.
|
15658
|
2956 |
|
|
2957 |
# Guatemala
|
|
2958 |
#
|
|
2959 |
# From Gwillim Law (2006-04-22), after a heads-up from Oscar van Vlijmen:
|
|
2960 |
# Diario Co Latino, at
|
|
2961 |
# http://www.diariocolatino.com/internacionales/detalles.asp?NewsID=8079,
|
|
2962 |
# says in an article dated 2006-04-19 that the Guatemalan government had
|
|
2963 |
# decided on that date to advance official time by 60 minutes, to lessen the
|
|
2964 |
# impact of the elevated cost of oil.... Daylight saving time will last from
|
|
2965 |
# 2006-04-29 24:00 (Guatemalan standard time) to 2006-09-30 (time unspecified).
|
|
2966 |
# From Paul Eggert (2006-06-22):
|
|
2967 |
# The Ministry of Energy and Mines, press release CP-15/2006
|
|
2968 |
# (2006-04-19), says DST ends at 24:00. See
|
|
2969 |
# <http://www.sieca.org.gt/Sitio_publico/Energeticos/Doc/Medidas/Cambio_Horario_Nac_190406.pdf>.
|
|
2970 |
|
|
2971 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
2972 |
Rule Guat 1973 only - Nov 25 0:00 1:00 D
|
|
2973 |
Rule Guat 1974 only - Feb 24 0:00 0 S
|
|
2974 |
Rule Guat 1983 only - May 21 0:00 1:00 D
|
|
2975 |
Rule Guat 1983 only - Sep 22 0:00 0 S
|
|
2976 |
Rule Guat 1991 only - Mar 23 0:00 1:00 D
|
|
2977 |
Rule Guat 1991 only - Sep 7 0:00 0 S
|
|
2978 |
Rule Guat 2006 only - Apr 30 0:00 1:00 D
|
|
2979 |
Rule Guat 2006 only - Oct 1 0:00 0 S
|
|
2980 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
2981 |
Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5
|
|
2982 |
-6:00 Guat C%sT
|
|
2983 |
|
|
2984 |
# Haiti
|
|
2985 |
# From Gwillim Law (2005-04-15):
|
|
2986 |
# Risto O. Nykanen wrote me that Haiti is now on DST.
|
|
2987 |
# I searched for confirmation, and I found a
|
|
2988 |
# <a href="http://www.haitianconsulate.org/time.doc"> press release
|
|
2989 |
# on the Web page of the Haitian Consulate in Chicago (2005-03-31),
|
|
2990 |
# </a>. Translated from French, it says:
|
|
2991 |
#
|
|
2992 |
# "The Prime Minister's Communication Office notifies the public in general
|
|
2993 |
# and the press in particular that, following a decision of the Interior
|
|
2994 |
# Ministry and the Territorial Collectivities [I suppose that means the
|
|
2995 |
# provinces], Haiti will move to Eastern Daylight Time in the night from next
|
|
2996 |
# Saturday the 2nd to Sunday the 3rd.
|
|
2997 |
#
|
|
2998 |
# "Consequently, the Prime Minister's Communication Office wishes to inform
|
|
2999 |
# the population that the country's clocks will be set forward one hour
|
|
3000 |
# starting at midnight. This provision will hold until the last Saturday in
|
|
3001 |
# October 2005.
|
|
3002 |
#
|
|
3003 |
# "Port-au-Prince, March 31, 2005"
|
|
3004 |
#
|
|
3005 |
# From Steffen Thorsen (2006-04-04):
|
|
3006 |
# I have been informed by users that Haiti observes DST this year like
|
|
3007 |
# last year, so the current "only" rule for 2005 might be changed to a
|
|
3008 |
# "max" rule or to last until 2006. (Who knows if they will observe DST
|
|
3009 |
# next year or if they will extend their DST like US/Canada next year).
|
|
3010 |
#
|
|
3011 |
# I have found this article about it (in French):
|
|
3012 |
# http://www.haitipressnetwork.com/news.cfm?articleID=7612
|
|
3013 |
#
|
|
3014 |
# The reason seems to be an energy crisis.
|
|
3015 |
|
|
3016 |
# From Stephen Colebourne (2007-02-22):
|
|
3017 |
# Some IATA info: Haiti won't be having DST in 2007.
|
|
3018 |
|
|
3019 |
# From Steffen Thorsen (2012-03-11):
|
|
3020 |
# According to several news sources, Haiti will observe DST this year,
|
|
3021 |
# apparently using the same start and end date as USA/Canada.
|
|
3022 |
# So this means they have already changed their time.
|
|
3023 |
#
|
|
3024 |
# http://www.alterpresse.org/spip.php?article12510
|
|
3025 |
# http://radiovision2000haiti.net/home/?p=13253
|
|
3026 |
#
|
|
3027 |
# From Arthur David Olson (2012-03-11):
|
|
3028 |
# The alterpresse.org source seems to show a US-style leap from 2:00 a.m. to
|
|
3029 |
# 3:00 a.m. rather than the traditional Haitian jump at midnight.
|
17464
|
3030 |
# Assume a US-style fall back as well.
|
|
3031 |
|
|
3032 |
# From Steffen Thorsen (2013-03-10):
|
|
3033 |
# It appears that Haiti is observing DST this year as well, same rules
|
|
3034 |
# as US/Canada. They did it last year as well, and it looks like they
|
|
3035 |
# are going to observe DST every year now...
|
|
3036 |
#
|
|
3037 |
# http://radiovision2000haiti.net/public/haiti-avis-changement-dheure-dimanche/
|
|
3038 |
# http://www.canalplushaiti.net/?p=6714
|
15658
|
3039 |
|
|
3040 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
3041 |
Rule Haiti 1983 only - May 8 0:00 1:00 D
|
|
3042 |
Rule Haiti 1984 1987 - Apr lastSun 0:00 1:00 D
|
|
3043 |
Rule Haiti 1983 1987 - Oct lastSun 0:00 0 S
|
|
3044 |
# Shanks & Pottenger say AT is 2:00, but IATA SSIM (1991/1997) says 1:00s.
|
|
3045 |
# Go with IATA.
|
|
3046 |
Rule Haiti 1988 1997 - Apr Sun>=1 1:00s 1:00 D
|
|
3047 |
Rule Haiti 1988 1997 - Oct lastSun 1:00s 0 S
|
|
3048 |
Rule Haiti 2005 2006 - Apr Sun>=1 0:00 1:00 D
|
|
3049 |
Rule Haiti 2005 2006 - Oct lastSun 0:00 0 S
|
17464
|
3050 |
Rule Haiti 2012 max - Mar Sun>=8 2:00 1:00 D
|
|
3051 |
Rule Haiti 2012 max - Nov Sun>=1 2:00 0 S
|
15658
|
3052 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
3053 |
Zone America/Port-au-Prince -4:49:20 - LMT 1890
|
|
3054 |
-4:49 - PPMT 1917 Jan 24 12:00 # P-a-P MT
|
|
3055 |
-5:00 Haiti E%sT
|
|
3056 |
|
|
3057 |
# Honduras
|
|
3058 |
# Shanks & Pottenger say 1921 Jan 1; go with Whitman's more precise Apr 1.
|
|
3059 |
|
|
3060 |
# From Paul Eggert (2006-05-05):
|
|
3061 |
# worldtimezone.com reports a 2006-05-02 Spanish-language AP article
|
|
3062 |
# saying Honduras will start using DST midnight Saturday, effective 4
|
|
3063 |
# months until September. La Tribuna reported today
|
|
3064 |
# <http://www.latribuna.hn/99299.html> that Manuel Zelaya, the president
|
|
3065 |
# of Honduras, refused to back down on this.
|
|
3066 |
|
|
3067 |
# From Jesper Norgaard Welen (2006-08-08):
|
|
3068 |
# It seems that Honduras has returned from DST to standard time this Monday at
|
|
3069 |
# 00:00 hours (prolonging Sunday to 25 hours duration).
|
|
3070 |
# http://www.worldtimezone.com/dst_news/dst_news_honduras04.html
|
|
3071 |
|
|
3072 |
# From Paul Eggert (2006-08-08):
|
|
3073 |
# Also see Diario El Heraldo, The country returns to standard time (2006-08-08)
|
|
3074 |
# <http://www.elheraldo.hn/nota.php?nid=54941&sec=12>.
|
|
3075 |
# It mentions executive decree 18-2006.
|
|
3076 |
|
|
3077 |
# From Steffen Thorsen (2006-08-17):
|
|
3078 |
# Honduras will observe DST from 2007 to 2009, exact dates are not
|
|
3079 |
# published, I have located this authoritative source:
|
|
3080 |
# http://www.presidencia.gob.hn/noticia.aspx?nId=47
|
|
3081 |
|
|
3082 |
# From Steffen Thorsen (2007-03-30):
|
|
3083 |
# http://www.laprensahn.com/pais_nota.php?id04962=7386
|
|
3084 |
# So it seems that Honduras will not enter DST this year....
|
|
3085 |
|
|
3086 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
3087 |
Rule Hond 1987 1988 - May Sun>=1 0:00 1:00 D
|
|
3088 |
Rule Hond 1987 1988 - Sep lastSun 0:00 0 S
|
|
3089 |
Rule Hond 2006 only - May Sun>=1 0:00 1:00 D
|
|
3090 |
Rule Hond 2006 only - Aug Mon>=1 0:00 0 S
|
|
3091 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
3092 |
Zone America/Tegucigalpa -5:48:52 - LMT 1921 Apr
|
|
3093 |
-6:00 Hond C%sT
|
|
3094 |
#
|
|
3095 |
# Great Swan I ceded by US to Honduras in 1972
|
|
3096 |
|
|
3097 |
# Jamaica
|
20867
|
3098 |
# Shanks & Pottenger give -5:07:12, but Milne records -5:07:10.41 from an
|
|
3099 |
# unspecified official document, and says "This time is used throughout the
|
|
3100 |
# island". Go with Milne. Round to the nearest second as required by zic.
|
15658
|
3101 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
20867
|
3102 |
Zone America/Jamaica -5:07:11 - LMT 1890 # Kingston
|
|
3103 |
-5:07:11 - KMT 1912 Feb # Kingston Mean Time
|
15658
|
3104 |
-5:00 - EST 1974 Apr 28 2:00
|
|
3105 |
-5:00 US E%sT 1984
|
|
3106 |
-5:00 - EST
|
|
3107 |
|
|
3108 |
# Martinique
|
|
3109 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
3110 |
Zone America/Martinique -4:04:20 - LMT 1890 # Fort-de-France
|
|
3111 |
-4:04:20 - FFMT 1911 May # Fort-de-France MT
|
|
3112 |
-4:00 - AST 1980 Apr 6
|
|
3113 |
-4:00 1:00 ADT 1980 Sep 28
|
|
3114 |
-4:00 - AST
|
|
3115 |
|
|
3116 |
# Montserrat
|
20867
|
3117 |
# See 'southamerica'.
|
15658
|
3118 |
|
|
3119 |
# Nicaragua
|
|
3120 |
#
|
|
3121 |
# This uses Shanks & Pottenger for times before 2005.
|
|
3122 |
#
|
|
3123 |
# From Steffen Thorsen (2005-04-12):
|
|
3124 |
# I've got reports from 8 different people that Nicaragua just started
|
|
3125 |
# DST on Sunday 2005-04-10, in order to save energy because of
|
|
3126 |
# expensive petroleum. The exact end date for DST is not yet
|
|
3127 |
# announced, only "September" but some sites also say "mid-September".
|
|
3128 |
# Some background information is available on the President's official site:
|
|
3129 |
# http://www.presidencia.gob.ni/Presidencia/Files_index/Secretaria/Notas%20de%20Prensa/Presidente/2005/ABRIL/Gobierno-de-nicaragua-adelanta-hora-oficial-06abril.htm
|
|
3130 |
# The Decree, no 23-2005 is available here:
|
|
3131 |
# http://www.presidencia.gob.ni/buscador_gaceta/BD/DECRETOS/2005/Decreto%2023-2005%20Se%20adelanta%20en%20una%20hora%20en%20todo%20el%20territorio%20nacional%20apartir%20de%20las%2024horas%20del%2009%20de%20Abril.pdf
|
|
3132 |
#
|
|
3133 |
# From Paul Eggert (2005-05-01):
|
|
3134 |
# The decree doesn't say anything about daylight saving, but for now let's
|
|
3135 |
# assume that it is daylight saving....
|
|
3136 |
#
|
|
3137 |
# From Gwillim Law (2005-04-21):
|
|
3138 |
# The Associated Press story on the time change, which can be found at
|
|
3139 |
# http://www.lapalmainteractivo.com/guias/content/gen/ap/America_Latina/AMC_GEN_NICARAGUA_HORA.html
|
|
3140 |
# and elsewhere, says (fifth paragraph, translated from Spanish): "The last
|
|
3141 |
# time that a change of clocks was applied to save energy was in the year 2000
|
|
3142 |
# during the Arnoldo Aleman administration."...
|
|
3143 |
# The northamerica file says that Nicaragua has been on UTC-6 continuously
|
|
3144 |
# since December 1998. I wasn't able to find any details of Nicaraguan time
|
|
3145 |
# changes in 2000. Perhaps a note could be added to the northamerica file, to
|
|
3146 |
# the effect that we have indirect evidence that DST was observed in 2000.
|
|
3147 |
#
|
|
3148 |
# From Jesper Norgaard Welen (2005-11-02):
|
|
3149 |
# Nicaragua left DST the 2005-10-02 at 00:00 (local time).
|
|
3150 |
# http://www.presidencia.gob.ni/presidencia/files_index/secretaria/comunicados/2005/septiembre/26septiembre-cambio-hora.htm
|
|
3151 |
# (2005-09-26)
|
|
3152 |
#
|
|
3153 |
# From Jesper Norgaard Welen (2006-05-05):
|
|
3154 |
# http://www.elnuevodiario.com.ni/2006/05/01/nacionales/18410
|
|
3155 |
# (my informal translation)
|
|
3156 |
# By order of the president of the republic, Enrique Bolanos, Nicaragua
|
|
3157 |
# advanced by sixty minutes their official time, yesterday at 2 in the
|
|
3158 |
# morning, and will stay that way until 30.th. of september.
|
|
3159 |
#
|
|
3160 |
# From Jesper Norgaard Welen (2006-09-30):
|
|
3161 |
# http://www.presidencia.gob.ni/buscador_gaceta/BD/DECRETOS/2006/D-063-2006P-PRN-Cambio-Hora.pdf
|
|
3162 |
# My informal translation runs:
|
|
3163 |
# The natural sun time is restored in all the national territory, in that the
|
|
3164 |
# time is returned one hour at 01:00 am of October 1 of 2006.
|
|
3165 |
#
|
|
3166 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
3167 |
Rule Nic 1979 1980 - Mar Sun>=16 0:00 1:00 D
|
|
3168 |
Rule Nic 1979 1980 - Jun Mon>=23 0:00 0 S
|
|
3169 |
Rule Nic 2005 only - Apr 10 0:00 1:00 D
|
|
3170 |
Rule Nic 2005 only - Oct Sun>=1 0:00 0 S
|
|
3171 |
Rule Nic 2006 only - Apr 30 2:00 1:00 D
|
|
3172 |
Rule Nic 2006 only - Oct Sun>=1 1:00 0 S
|
|
3173 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
3174 |
Zone America/Managua -5:45:08 - LMT 1890
|
|
3175 |
-5:45:12 - MMT 1934 Jun 23 # Managua Mean Time?
|
|
3176 |
-6:00 - CST 1973 May
|
|
3177 |
-5:00 - EST 1975 Feb 16
|
|
3178 |
-6:00 Nic C%sT 1992 Jan 1 4:00
|
|
3179 |
-5:00 - EST 1992 Sep 24
|
|
3180 |
-6:00 - CST 1993
|
|
3181 |
-5:00 - EST 1997
|
|
3182 |
-6:00 Nic C%sT
|
|
3183 |
|
|
3184 |
# Panama
|
|
3185 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
3186 |
Zone America/Panama -5:18:08 - LMT 1890
|
|
3187 |
-5:19:36 - CMT 1908 Apr 22 # Colon Mean Time
|
|
3188 |
-5:00 - EST
|
|
3189 |
|
|
3190 |
# Puerto Rico
|
20867
|
3191 |
# There are too many San Juans elsewhere, so we'll use 'Puerto_Rico'.
|
15658
|
3192 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
3193 |
Zone America/Puerto_Rico -4:24:25 - LMT 1899 Mar 28 12:00 # San Juan
|
|
3194 |
-4:00 - AST 1942 May 3
|
|
3195 |
-4:00 US A%sT 1946
|
|
3196 |
-4:00 - AST
|
|
3197 |
|
|
3198 |
# St Kitts-Nevis
|
|
3199 |
# St Lucia
|
20867
|
3200 |
# See 'southamerica'.
|
15658
|
3201 |
|
|
3202 |
# St Pierre and Miquelon
|
20867
|
3203 |
# There are too many St Pierres elsewhere, so we'll use 'Miquelon'.
|
15658
|
3204 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
3205 |
Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre
|
|
3206 |
-4:00 - AST 1980 May
|
|
3207 |
-3:00 - PMST 1987 # Pierre & Miquelon Time
|
|
3208 |
-3:00 Canada PM%sT
|
|
3209 |
|
|
3210 |
# St Vincent and the Grenadines
|
20867
|
3211 |
# See 'southamerica'.
|
15658
|
3212 |
|
|
3213 |
# Turks and Caicos
|
|
3214 |
#
|
|
3215 |
# From Chris Dunn in
|
|
3216 |
# <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=415007>
|
|
3217 |
# (2007-03-15): In the Turks & Caicos Islands (America/Grand_Turk) the
|
|
3218 |
# daylight saving dates for time changes have been adjusted to match
|
|
3219 |
# the recent U.S. change of dates.
|
|
3220 |
#
|
|
3221 |
# From Brian Inglis (2007-04-28):
|
|
3222 |
# http://www.turksandcaicos.tc/calendar/index.htm [2007-04-26]
|
|
3223 |
# there is an entry for Nov 4 "Daylight Savings Time Ends 2007" and three
|
|
3224 |
# rows before that there is an out of date entry for Oct:
|
|
3225 |
# "Eastern Standard Times Begins 2007
|
|
3226 |
# Clocks are set back one hour at 2:00 a.m. local Daylight Saving Time"
|
|
3227 |
# indicating that the normal ET rules are followed.
|
|
3228 |
#
|
|
3229 |
# From Paul Eggert (2006-05-01):
|
|
3230 |
# Shanks & Pottenger say they use US DST rules, but IATA SSIM (1991/1998)
|
|
3231 |
# says they switch at midnight. Go with Shanks & Pottenger.
|
|
3232 |
#
|
|
3233 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
|
3234 |
Rule TC 1979 1986 - Apr lastSun 2:00 1:00 D
|
|
3235 |
Rule TC 1979 2006 - Oct lastSun 2:00 0 S
|
|
3236 |
Rule TC 1987 2006 - Apr Sun>=1 2:00 1:00 D
|
|
3237 |
Rule TC 2007 max - Mar Sun>=8 2:00 1:00 D
|
|
3238 |
Rule TC 2007 max - Nov Sun>=1 2:00 0 S
|
|
3239 |
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
|
3240 |
Zone America/Grand_Turk -4:44:32 - LMT 1890
|
20867
|
3241 |
-5:07:11 - KMT 1912 Feb # Kingston Mean Time
|
15658
|
3242 |
-5:00 TC E%sT
|
|
3243 |
|
|
3244 |
# British Virgin Is
|
|
3245 |
# Virgin Is
|
20867
|
3246 |
# See 'southamerica'.
|