jdk/make/data/tzdata/southamerica
changeset 21805 c7d7946239de
parent 20867 38b088040f4f
child 21843 766fef71e8bb
equal deleted inserted replaced
21804:07b686da11c4 21805:c7d7946239de
       
     1 #
       
     2 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
       
     3 #
       
     4 # This code is free software; you can redistribute it and/or modify it
       
     5 # under the terms of the GNU General Public License version 2 only, as
       
     6 # published by the Free Software Foundation.  Oracle designates this
       
     7 # particular file as subject to the "Classpath" exception as provided
       
     8 # by Oracle in the LICENSE file that accompanied this code.
       
     9 #
       
    10 # This code is distributed in the hope that it will be useful, but WITHOUT
       
    11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
       
    12 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
       
    13 # version 2 for more details (a copy is included in the LICENSE file that
       
    14 # accompanied this code).
       
    15 #
       
    16 # You should have received a copy of the GNU General Public License version
       
    17 # 2 along with this work; if not, write to the Free Software Foundation,
       
    18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
       
    19 #
       
    20 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
       
    21 # or visit www.oracle.com if you need additional information or have any
       
    22 # questions.
       
    23 #
       
    24 # <pre>
       
    25 # This file is in the public domain, so clarified as of
       
    26 # 2009-05-17 by Arthur David Olson.
       
    27 
       
    28 # This data is by no means authoritative; if you think you know better,
       
    29 # go ahead and edit the file (and please send any changes to
       
    30 # tz@iana.org for general use in the future).
       
    31 
       
    32 # From Paul Eggert (2006-03-22):
       
    33 # A good source for time zone historical data outside the U.S. is
       
    34 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
       
    35 # San Diego: ACS Publications, Inc. (2003).
       
    36 #
       
    37 # For data circa 1899, a common source is:
       
    38 # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
       
    39 # <http://www.jstor.org/stable/1774359>.
       
    40 #
       
    41 # Gwillim Law writes that a good source
       
    42 # for recent time zone data is the International Air Transport
       
    43 # Association's Standard Schedules Information Manual (IATA SSIM),
       
    44 # published semiannually.  Law sent in several helpful summaries
       
    45 # of the IATA's data after 1990.
       
    46 #
       
    47 # Except where otherwise noted, Shanks & Pottenger is the source for
       
    48 # entries through 1990, and IATA SSIM is the source for entries afterwards.
       
    49 #
       
    50 # Earlier editions of these tables used the North American style (e.g. ARST and
       
    51 # ARDT for Argentine Standard and Daylight Time), but the following quote
       
    52 # suggests that it's better to use European style (e.g. ART and ARST).
       
    53 #	I suggest the use of _Summer time_ instead of the more cumbersome
       
    54 #	_daylight-saving time_.  _Summer time_ seems to be in general use
       
    55 #	in Europe and South America.
       
    56 #	-- E O Cutler, _New York Times_ (1937-02-14), quoted in
       
    57 #	H L Mencken, _The American Language: Supplement I_ (1960), p 466
       
    58 #
       
    59 # Earlier editions of these tables also used the North American style
       
    60 # for time zones in Brazil, but this was incorrect, as Brazilians say
       
    61 # "summer time".  Reinaldo Goulart, a Sao Paulo businessman active in
       
    62 # the railroad sector, writes (1999-07-06):
       
    63 #	The subject of time zones is currently a matter of discussion/debate in
       
    64 #	Brazil.  Let's say that "the Brasilia time" is considered the
       
    65 #	"official time" because Brasilia is the capital city.
       
    66 #	The other three time zones are called "Brasilia time "minus one" or
       
    67 #	"plus one" or "plus two".  As far as I know there is no such
       
    68 #	name/designation as "Eastern Time" or "Central Time".
       
    69 # So I invented the following (English-language) abbreviations for now.
       
    70 # Corrections are welcome!
       
    71 #		std	dst
       
    72 #	-2:00	FNT	FNST	Fernando de Noronha
       
    73 #	-3:00	BRT	BRST	Brasilia
       
    74 #	-4:00	AMT	AMST	Amazon
       
    75 #	-5:00	ACT	ACST	Acre
       
    76 
       
    77 ###############################################################################
       
    78 
       
    79 ###############################################################################
       
    80 
       
    81 # Argentina
       
    82 
       
    83 # From Bob Devine (1988-01-28):
       
    84 # Argentina: first Sunday in October to first Sunday in April since 1976.
       
    85 # Double Summer time from 1969 to 1974.  Switches at midnight.
       
    86 
       
    87 # From U. S. Naval Observatory (1988-01-199):
       
    88 # ARGENTINA           3 H BEHIND   UTC
       
    89 
       
    90 # From Hernan G. Otero (1995-06-26):
       
    91 # I am sending modifications to the Argentine time zone table...
       
    92 # AR was chosen because they are the ISO letters that represent Argentina.
       
    93 
       
    94 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
       
    95 Rule	Arg	1930	only	-	Dec	 1	0:00	1:00	S
       
    96 Rule	Arg	1931	only	-	Apr	 1	0:00	0	-
       
    97 Rule	Arg	1931	only	-	Oct	15	0:00	1:00	S
       
    98 Rule	Arg	1932	1940	-	Mar	 1	0:00	0	-
       
    99 Rule	Arg	1932	1939	-	Nov	 1	0:00	1:00	S
       
   100 Rule	Arg	1940	only	-	Jul	 1	0:00	1:00	S
       
   101 Rule	Arg	1941	only	-	Jun	15	0:00	0	-
       
   102 Rule	Arg	1941	only	-	Oct	15	0:00	1:00	S
       
   103 Rule	Arg	1943	only	-	Aug	 1	0:00	0	-
       
   104 Rule	Arg	1943	only	-	Oct	15	0:00	1:00	S
       
   105 Rule	Arg	1946	only	-	Mar	 1	0:00	0	-
       
   106 Rule	Arg	1946	only	-	Oct	 1	0:00	1:00	S
       
   107 Rule	Arg	1963	only	-	Oct	 1	0:00	0	-
       
   108 Rule	Arg	1963	only	-	Dec	15	0:00	1:00	S
       
   109 Rule	Arg	1964	1966	-	Mar	 1	0:00	0	-
       
   110 Rule	Arg	1964	1966	-	Oct	15	0:00	1:00	S
       
   111 Rule	Arg	1967	only	-	Apr	 2	0:00	0	-
       
   112 Rule	Arg	1967	1968	-	Oct	Sun>=1	0:00	1:00	S
       
   113 Rule	Arg	1968	1969	-	Apr	Sun>=1	0:00	0	-
       
   114 Rule	Arg	1974	only	-	Jan	23	0:00	1:00	S
       
   115 Rule	Arg	1974	only	-	May	 1	0:00	0	-
       
   116 Rule	Arg	1988	only	-	Dec	 1	0:00	1:00	S
       
   117 #
       
   118 # From Hernan G. Otero (1995-06-26):
       
   119 # These corrections were contributed by InterSoft Argentina S.A.,
       
   120 # obtaining the data from the:
       
   121 # Talleres de Hidrografia Naval Argentina
       
   122 # (Argentine Naval Hydrography Institute)
       
   123 Rule	Arg	1989	1993	-	Mar	Sun>=1	0:00	0	-
       
   124 Rule	Arg	1989	1992	-	Oct	Sun>=15	0:00	1:00	S
       
   125 #
       
   126 # From Hernan G. Otero (1995-06-26):
       
   127 # From this moment on, the law that mandated the daylight saving
       
   128 # time corrections was derogated and no more modifications
       
   129 # to the time zones (for daylight saving) are now made.
       
   130 #
       
   131 # From Rives McDow (2000-01-10):
       
   132 # On October 3, 1999, 0:00 local, Argentina implemented daylight savings time,
       
   133 # which did not result in the switch of a time zone, as they stayed 9 hours
       
   134 # from the International Date Line.
       
   135 Rule	Arg	1999	only	-	Oct	Sun>=1	0:00	1:00	S
       
   136 # From Paul Eggert (2007-12-28):
       
   137 # DST was set to expire on March 5, not March 3, but since it was converted
       
   138 # to standard time on March 3 it's more convenient for us to pretend that
       
   139 # it ended on March 3.
       
   140 Rule	Arg	2000	only	-	Mar	3	0:00	0	-
       
   141 #
       
   142 # From Peter Gradelski via Steffen Thorsen (2000-03-01):
       
   143 # We just checked with our Sao Paulo office and they say the government of
       
   144 # Argentina decided not to become one of the countries that go on or off DST.
       
   145 # So Buenos Aires should be -3 hours from GMT at all times.
       
   146 #
       
   147 # From Fabian L. Arce Jofre (2000-04-04):
       
   148 # The law that claimed DST for Argentina was derogated by President Fernando
       
   149 # de la Rua on March 2, 2000, because it would make people spend more energy
       
   150 # in the winter time, rather than less.  The change took effect on March 3.
       
   151 #
       
   152 # From Mariano Absatz (2001-06-06):
       
   153 # one of the major newspapers here in Argentina said that the 1999
       
   154 # Timezone Law (which never was effectively applied) will (would?) be
       
   155 # in effect.... The article is at
       
   156 # http://ar.clarin.com/diario/2001-06-06/e-01701.htm
       
   157 # ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted
       
   158 # 1999-09-17, and published 1999-09-21.  The official publication is at:
       
   159 # http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF
       
   160 # Regretfully, you have to subscribe (and pay) for the on-line version....
       
   161 #
       
   162 # (2001-06-12):
       
   163 # the timezone for Argentina will not change next Sunday.
       
   164 # Apparently it will do so on Sunday 24th....
       
   165 # http://ar.clarin.com/diario/2001-06-12/s-03501.htm
       
   166 #
       
   167 # (2001-06-25):
       
   168 # Last Friday (yes, the last working day before the date of the change), the
       
   169 # Senate annulled the 1999 law that introduced the changes later postponed.
       
   170 # http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm
       
   171 # It remains the vote of the Deputies..., but it will be the same....
       
   172 # This kind of things had always been done this way in Argentina.
       
   173 # We are still -03:00 all year round in all of the country.
       
   174 #
       
   175 # From Steffen Thorsen (2007-12-21):
       
   176 # A user (Leonardo Chaim) reported that Argentina will adopt DST....
       
   177 # all of the country (all Zone-entries) are affected.  News reports like
       
   178 # http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate
       
   179 # that Argentina will use DST next year as well, from October to
       
   180 # March, although exact rules are not given.
       
   181 #
       
   182 # From Jesper Norgaard Welen (2007-12-26)
       
   183 # The last hurdle of Argentina DST is over, the proposal was approved in
       
   184 # the lower chamber too (Deputados) with a vote 192 for and 2 against.
       
   185 # By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to
       
   186 # the original scanned proposal, where the dates and the zero hours are
       
   187 # clear and unambiguous...This is the article about final approval:
       
   188 # <a href="http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996">
       
   189 # http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996
       
   190 # </a>
       
   191 #
       
   192 # From Paul Eggert (2007-12-22):
       
   193 # For dates after mid-2008, the following rules are my guesses and
       
   194 # are quite possibly wrong, but are more likely than no DST at all.
       
   195 
       
   196 # From Alexander Krivenyshev (2008-09-05):
       
   197 # As per message from Carlos Alberto Fonseca Arauz (Nicaragua),
       
   198 # Argentina will start DST on Sunday October 19, 2008.
       
   199 #
       
   200 # <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina03.html">
       
   201 # http://www.worldtimezone.com/dst_news/dst_news_argentina03.html
       
   202 # </a>
       
   203 # OR
       
   204 # <a href="http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)">
       
   205 # http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)
       
   206 # </a>
       
   207 
       
   208 # From Rodrigo Severo (2008-10-06):
       
   209 # Here is some info available at a Gentoo bug related to TZ on Argentina's DST:
       
   210 # ...
       
   211 # ------- Comment #1 from [jmdocile]  2008-10-06 16:28 0000 -------
       
   212 # Hi, there is a problem with timezone-data-2008e and maybe with
       
   213 # timezone-data-2008f
       
   214 # Argentinian law [Number] 25.155 is no longer valid.
       
   215 # <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm">
       
   216 # http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm
       
   217 # </a>
       
   218 # The new one is law [Number] 26.350
       
   219 # <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm">
       
   220 # http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm
       
   221 # </a>
       
   222 # So there is no summer time in Argentina for now.
       
   223 
       
   224 # From Mariano Absatz (2008-10-20):
       
   225 # Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST in Argentina
       
   226 # From 2008-10-19 until 2009-03-15
       
   227 # <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01">
       
   228 # http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01
       
   229 # </a>
       
   230 #
       
   231 # Decree 1705/2008 excepting 12 Provinces from applying DST in the summer 2008/2009:
       
   232 # Catamarca, La Rioja, Mendoza, Salta, San Juan, San Luis, La Pampa, Neuquen, Rio Negro, Chubut, Santa Cruz
       
   233 # and Tierra del Fuego
       
   234 # <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01">
       
   235 # http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01
       
   236 # </a>
       
   237 #
       
   238 # Press release 235 dated Saturday October 18th, from the Government of the Province of Jujuy saying
       
   239 # it will not apply DST either (even when it was not included in Decree 1705/2008)
       
   240 # <a href="http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc">
       
   241 # http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc
       
   242 # </a>
       
   243 
       
   244 # From fullinet (2009-10-18):
       
   245 # As announced in
       
   246 # <a hef="http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356">
       
   247 # http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356
       
   248 # </a>
       
   249 # (an official .gob.ar) under title: "Sin Cambio de Hora" (english: "No hour change")
       
   250 #
       
   251 # "Por el momento, el Gobierno Nacional resolvio no modificar la hora
       
   252 # oficial, decision que estaba en estudio para su implementacion el
       
   253 # domingo 18 de octubre. Desde el Ministerio de Planificacion se anuncio
       
   254 # que la Argentina hoy, en estas condiciones meteorologicas, no necesita
       
   255 # la modificacion del huso horario, ya que 2009 nos encuentra con
       
   256 # crecimiento en la produccion y distribucion energetica."
       
   257 
       
   258 Rule	Arg	2007	only	-	Dec	30	0:00	1:00	S
       
   259 Rule	Arg	2008	2009	-	Mar	Sun>=15	0:00	0	-
       
   260 Rule	Arg	2008	only	-	Oct	Sun>=15	0:00	1:00	S
       
   261 
       
   262 # From Mariano Absatz (2004-05-21):
       
   263 # Today it was officially published that the Province of Mendoza is changing
       
   264 # its timezone this winter... starting tomorrow night....
       
   265 # http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf
       
   266 # From Paul Eggert (2004-05-24):
       
   267 # It's Law No. 7,210.  This change is due to a public power emergency, so for
       
   268 # now we'll assume it's for this year only.
       
   269 #
       
   270 # From Paul Eggert (2006-03-22):
       
   271 # <a href="http://www.spicasc.net/horvera.html">
       
   272 # Hora de verano para la Republica Argentina (2003-06-08)
       
   273 # </a> says that standard time in Argentina from 1894-10-31
       
   274 # to 1920-05-01 was -4:16:48.25.  Go with this more-precise value
       
   275 # over Shanks & Pottenger.
       
   276 #
       
   277 # From Mariano Absatz (2004-06-05):
       
   278 # These media articles from a major newspaper mostly cover the current state:
       
   279 # http://www.lanacion.com.ar/04/05/27/de_604825.asp
       
   280 # http://www.lanacion.com.ar/04/05/28/de_605203.asp
       
   281 #
       
   282 # The following eight (8) provinces pulled clocks back to UTC-04:00 at
       
   283 # midnight Monday May 31st. (that is, the night between 05/31 and 06/01).
       
   284 # Apparently, all nine provinces would go back to UTC-03:00 at the same
       
   285 # time in October 17th.
       
   286 #
       
   287 # Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz,
       
   288 # Tierra del Fuego, Tucuman.
       
   289 #
       
   290 # From Mariano Absatz (2004-06-14):
       
   291 # ... this weekend, the Province of Tucuman decided it'd go back to UTC-03:00
       
   292 # yesterday midnight (that is, at 24:00 Saturday 12th), since the people's
       
   293 # annoyance with the change is much higher than the power savings obtained....
       
   294 #
       
   295 # From Gwillim Law (2004-06-14):
       
   296 # http://www.lanacion.com.ar/04/06/10/de_609078.asp ...
       
   297 #     "The time change in Tierra del Fuego was a conflicted decision from
       
   298 #   the start.  The government had decreed that the measure would take
       
   299 #   effect on June 1, but a normative error forced the new time to begin
       
   300 #   three days earlier, from a Saturday to a Sunday....
       
   301 # Our understanding was that the change was originally scheduled to take place
       
   302 # on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other
       
   303 # provinces).  Sunday was May 30, only two days earlier.  So the article
       
   304 # contains a contradiction.  I would give more credence to the Saturday/Sunday
       
   305 # date than the "three days earlier" phrase, and conclude that Tierra del
       
   306 # Fuego set its clocks back at 2004-05-30 00:00.
       
   307 #
       
   308 # From Steffen Thorsen (2004-10-05):
       
   309 # The previous law 7210 which changed the province of Mendoza's time zone
       
   310 # back in May have been modified slightly in a new law 7277, which set the
       
   311 # new end date to 2004-09-26 (original date was 2004-10-17).
       
   312 # http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf
       
   313 #
       
   314 # From Mariano Absatz (2004-10-05):
       
   315 # San Juan changed from UTC-03:00 to UTC-04:00 at midnight between
       
   316 # Sunday, May 30th and Monday, May 31st.  It changed back to UTC-03:00
       
   317 # at midnight between Saturday, July 24th and Sunday, July 25th....
       
   318 # http://www.sanjuan.gov.ar/prensa/archivo/000329.html
       
   319 # http://www.sanjuan.gov.ar/prensa/archivo/000426.html
       
   320 # http://www.sanjuan.gov.ar/prensa/archivo/000441.html
       
   321 
       
   322 # From Alex Krivenyshev (2008-01-17):
       
   323 # Here are articles that Argentina Province San Luis is planning to end DST
       
   324 # as earlier as upcoming Monday January 21, 2008 or February 2008:
       
   325 #
       
   326 # Provincia argentina retrasa reloj y marca diferencia con resto del pais
       
   327 # (Argentine Province delayed clock and mark difference with the rest of the
       
   328 # country)
       
   329 # <a href="http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel">
       
   330 # http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel
       
   331 # </a>
       
   332 #
       
   333 # Es inminente que en San Luis atrasen una hora los relojes
       
   334 # (It is imminent in San Luis clocks one hour delay)
       
   335 # <a href="http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414">
       
   336 # http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414
       
   337 # </a>
       
   338 #
       
   339 # <a href="http://www.worldtimezone.net/dst_news/dst_news_argentina02.html">
       
   340 # http://www.worldtimezone.net/dst_news/dst_news_argentina02.html
       
   341 # </a>
       
   342 
       
   343 # From Jesper Norgaard Welen (2008-01-18):
       
   344 # The page of the San Luis provincial government
       
   345 # <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812">
       
   346 # http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812
       
   347 # </a>
       
   348 # confirms what Alex Krivenyshev has earlier sent to the tz
       
   349 # emailing list about that San Luis plans to return to standard
       
   350 # time much earlier than the rest of the country. It also
       
   351 # confirms that upon request the provinces San Juan and Mendoza
       
   352 # refused to follow San Luis in this change.
       
   353 #
       
   354 # The change is supposed to take place Monday the 21.st at 0:00
       
   355 # hours. As far as I understand it if this goes ahead, we need
       
   356 # a new timezone for San Luis (although there are also documented
       
   357 # independent changes in the southamerica file of San Luis in
       
   358 # 1990 and 1991 which has not been confirmed).
       
   359 
       
   360 # From Jesper Norgaard Welen (2008-01-25):
       
   361 # Unfortunately the below page has become defunct, about the San Luis
       
   362 # time change. Perhaps because it now is part of a group of pages "Most
       
   363 # important pages of 2008."
       
   364 #
       
   365 # You can use
       
   366 # <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834">
       
   367 # http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834
       
   368 # </a>
       
   369 # instead it seems. Or use "Buscador" from the main page of the San Luis
       
   370 # government, and fill in "huso" and click OK, and you will get 3 pages
       
   371 # from which the first one is identical to the above.
       
   372 
       
   373 # From Mariano Absatz (2008-01-28):
       
   374 # I can confirm that the Province of San Luis (and so far only that
       
   375 # province) decided to go back to UTC-3 effective midnight Jan 20th 2008
       
   376 # (that is, Monday 21st at 0:00 is the time the clocks were delayed back
       
   377 # 1 hour), and they intend to keep UTC-3 as their timezone all year round
       
   378 # (that is, unless they change their mind any minute now).
       
   379 #
       
   380 # So we'll have to add yet another city to 'southamerica' (I think San
       
   381 # Luis city is the mos populated city in the Province, so it'd be
       
   382 # America/Argentina/San_Luis... of course I can't remember if San Luis's
       
   383 # history of particular changes goes along with Mendoza or San Juan :-(
       
   384 # (I only remember not being able to collect hard facts about San Luis
       
   385 # back in 2004, when these provinces changed to UTC-4 for a few days, I
       
   386 # mailed them personally and never got an answer).
       
   387 
       
   388 # From Paul Eggert (2008-06-30):
       
   389 # Unless otherwise specified, data are from Shanks & Pottenger through 1992,
       
   390 # from the IATA otherwise.  As noted below, Shanks & Pottenger say that
       
   391 # America/Cordoba split into 6 subregions during 1991/1992, one of which
       
   392 # was America/San_Luis, but we haven't verified this yet so for now we'll
       
   393 # keep America/Cordoba a single region rather than splitting it into the
       
   394 # other 5 subregions.
       
   395 
       
   396 # From Mariano Absatz (2009-03-13):
       
   397 # Yesterday (with our usual 2-day notice) the Province of San Luis
       
   398 # decided that next Sunday instead of "staying" @utc-03:00 they will go
       
   399 # to utc-04:00 until the second Saturday in October...
       
   400 #
       
   401 # The press release is at
       
   402 # <a href="http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102">
       
   403 # http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102
       
   404 # </a>
       
   405 # (I couldn't find the decree, but
       
   406 # <a href="http://www.sanluis.gov.ar">
       
   407 # www.sanluis.gov.ar
       
   408 # <a/>
       
   409 # is the official page for the Province Government).
       
   410 #
       
   411 # There's also a note in only one of the major national papers ...
       
   412 # http://www.lanacion.com.ar/nota.asp?nota_id=1107912
       
   413 #
       
   414 # The press release says [quick and dirty translation]:
       
   415 # ... announced that next Sunday, at 00:00, Puntanos (the San Luis
       
   416 # inhabitants) will have to turn back one hour their clocks
       
   417 #
       
   418 # Since then, San Luis will establish its own Province timezone. Thus,
       
   419 # during 2009, this timezone change will run from 00:00 the third Sunday
       
   420 # in March until 24:00 of the second Saturday in October.
       
   421 
       
   422 # From Mariano Absatz (2009-10-16):
       
   423 # ...the Province of San Luis is a case in itself.
       
   424 #
       
   425 # The Law at
       
   426 # <a href="http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276>"
       
   427 # http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276
       
   428 # </a>
       
   429 # is ambiguous because establishes a calendar from the 2nd Sunday in
       
   430 # October at 0:00 thru the 2nd Saturday in March at 24:00 and the
       
   431 # complement of that starting on the 2nd Sunday of March at 0:00 and
       
   432 # ending on the 2nd Saturday of March at 24:00.
       
   433 #
       
   434 # This clearly breaks every time the 1st of March or October is a Sunday.
       
   435 #
       
   436 # IMHO, the "spirit of the Law" is to make the changes at 0:00 on the 2nd
       
   437 # Sunday of October and March.
       
   438 #
       
   439 # The problem is that the changes in the rest of the Provinces that did
       
   440 # change in 2007/2008, were made according to the Federal Law and Decrees
       
   441 # that did so on the 3rd Sunday of October and March.
       
   442 #
       
   443 # In fact, San Luis actually switched from UTC-4 to UTC-3 last Sunday
       
   444 # (October 11th) at 0:00.
       
   445 #
       
   446 # So I guess a new set of rules, besides "Arg", must be made and the last
       
   447 # America/Argentina/San_Luis entries should change to use these...
       
   448 #
       
   449 # I'm enclosing a patch that does what I say... regretfully, the San Luis
       
   450 # timezone must be called "WART/WARST" even when most of the time (like,
       
   451 # right now) WARST == ART... that is, since last Sunday, all the country
       
   452 # is using UTC-3, but in my patch, San Luis calls it "WARST" and the rest
       
   453 # of the country calls it "ART".
       
   454 # ...
       
   455 
       
   456 # From Alexander Krivenyshev (2010-04-09):
       
   457 # According to news reports from El Diario de la Republica Province San
       
   458 # Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time
       
   459 # after April 11, 2010--will continue to have same time as rest of
       
   460 # Argentina (UTC-3) (no DST).
       
   461 #
       
   462 # Confirmaron la pr&oacute;rroga del huso horario de verano (Spanish)
       
   463 # <a href="http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9">
       
   464 # http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9
       
   465 # </a>
       
   466 # or (some English translation):
       
   467 # <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina08.html">
       
   468 # http://www.worldtimezone.com/dst_news/dst_news_argentina08.html
       
   469 # </a>
       
   470 
       
   471 # From Mariano Absatz (2010-04-12):
       
   472 # yes...I can confirm this...and given that San Luis keeps calling
       
   473 # UTC-03:00 "summer time", we should't just let San Luis go back to "Arg"
       
   474 # rules...San Luis is still using "Western ARgentina Time" and it got
       
   475 # stuck on Summer daylight savings time even though the summer is over.
       
   476 
       
   477 # From Paul Eggert (2013-09-05):
       
   478 # Perhaps San Luis operates on the legal fiction that it is at UTC-4
       
   479 # with perpetual summer time, but ordinary usage typically seems to
       
   480 # just say it's at UTC-3; see, for example,
       
   481 # <http://es.wikipedia.org/wiki/Hora_oficial_argentina>.
       
   482 # We've documented similar situations as being plain changes to
       
   483 # standard time, so let's do that here too.  This does not change UTC
       
   484 # offsets, only tm_isdst and the time zone abbreviations.  One minor
       
   485 # plus is that this silences a zic complaint that there's no POSIX TZ
       
   486 # setting for time stamps past 2038.
       
   487 
       
   488 # From Paul Eggert (2013-02-21):
       
   489 # Milne says Cordoba time was -4:16:48.2.  Round to the nearest second.
       
   490 
       
   491 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
   492 #
       
   493 # Buenos Aires (BA), Capital Federal (CF),
       
   494 Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
       
   495 			-4:16:48 -	CMT	1920 May # Cordoba Mean Time
       
   496 			-4:00	-	ART	1930 Dec
       
   497 			-4:00	Arg	AR%sT	1969 Oct  5
       
   498 			-3:00	Arg	AR%sT	1999 Oct  3
       
   499 			-4:00	Arg	AR%sT	2000 Mar  3
       
   500 			-3:00	Arg	AR%sT
       
   501 #
       
   502 # Cordoba (CB), Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN),
       
   503 # Chaco (CC), Formosa (FM), Santiago del Estero (SE)
       
   504 #
       
   505 # Shanks & Pottenger also make the following claims, which we haven't verified:
       
   506 # - Formosa switched to -3:00 on 1991-01-07.
       
   507 # - Misiones switched to -3:00 on 1990-12-29.
       
   508 # - Chaco switched to -3:00 on 1991-01-04.
       
   509 # - Santiago del Estero switched to -4:00 on 1991-04-01,
       
   510 #   then to -3:00 on 1991-04-26.
       
   511 #
       
   512 Zone America/Argentina/Cordoba -4:16:48 - LMT	1894 Oct 31
       
   513 			-4:16:48 -	CMT	1920 May
       
   514 			-4:00	-	ART	1930 Dec
       
   515 			-4:00	Arg	AR%sT	1969 Oct  5
       
   516 			-3:00	Arg	AR%sT	1991 Mar  3
       
   517 			-4:00	-	WART	1991 Oct 20
       
   518 			-3:00	Arg	AR%sT	1999 Oct  3
       
   519 			-4:00	Arg	AR%sT	2000 Mar  3
       
   520 			-3:00	Arg	AR%sT
       
   521 #
       
   522 # Salta (SA), La Pampa (LP), Neuquen (NQ), Rio Negro (RN)
       
   523 Zone America/Argentina/Salta -4:21:40 - LMT	1894 Oct 31
       
   524 			-4:16:48 -	CMT	1920 May
       
   525 			-4:00	-	ART	1930 Dec
       
   526 			-4:00	Arg	AR%sT	1969 Oct  5
       
   527 			-3:00	Arg	AR%sT	1991 Mar  3
       
   528 			-4:00	-	WART	1991 Oct 20
       
   529 			-3:00	Arg	AR%sT	1999 Oct  3
       
   530 			-4:00	Arg	AR%sT	2000 Mar  3
       
   531 			-3:00	Arg	AR%sT	2008 Oct 18
       
   532 			-3:00	-	ART
       
   533 #
       
   534 # Tucuman (TM)
       
   535 Zone America/Argentina/Tucuman -4:20:52 - LMT	1894 Oct 31
       
   536 			-4:16:48 -	CMT	1920 May
       
   537 			-4:00	-	ART	1930 Dec
       
   538 			-4:00	Arg	AR%sT	1969 Oct  5
       
   539 			-3:00	Arg	AR%sT	1991 Mar  3
       
   540 			-4:00	-	WART	1991 Oct 20
       
   541 			-3:00	Arg	AR%sT	1999 Oct  3
       
   542 			-4:00	Arg	AR%sT	2000 Mar  3
       
   543 			-3:00	-	ART	2004 Jun  1
       
   544 			-4:00	-	WART	2004 Jun 13
       
   545 			-3:00	Arg	AR%sT
       
   546 #
       
   547 # La Rioja (LR)
       
   548 Zone America/Argentina/La_Rioja -4:27:24 - LMT	1894 Oct 31
       
   549 			-4:16:48 -	CMT	1920 May
       
   550 			-4:00	-	ART	1930 Dec
       
   551 			-4:00	Arg	AR%sT	1969 Oct  5
       
   552 			-3:00	Arg	AR%sT	1991 Mar  1
       
   553 			-4:00	-	WART	1991 May  7
       
   554 			-3:00	Arg	AR%sT	1999 Oct  3
       
   555 			-4:00	Arg	AR%sT	2000 Mar  3
       
   556 			-3:00	-	ART	2004 Jun  1
       
   557 			-4:00	-	WART	2004 Jun 20
       
   558 			-3:00	Arg	AR%sT	2008 Oct 18
       
   559 			-3:00	-	ART
       
   560 #
       
   561 # San Juan (SJ)
       
   562 Zone America/Argentina/San_Juan -4:34:04 - LMT	1894 Oct 31
       
   563 			-4:16:48 -	CMT	1920 May
       
   564 			-4:00	-	ART	1930 Dec
       
   565 			-4:00	Arg	AR%sT	1969 Oct  5
       
   566 			-3:00	Arg	AR%sT	1991 Mar  1
       
   567 			-4:00	-	WART	1991 May  7
       
   568 			-3:00	Arg	AR%sT	1999 Oct  3
       
   569 			-4:00	Arg	AR%sT	2000 Mar  3
       
   570 			-3:00	-	ART	2004 May 31
       
   571 			-4:00	-	WART	2004 Jul 25
       
   572 			-3:00	Arg	AR%sT	2008 Oct 18
       
   573 			-3:00	-	ART
       
   574 #
       
   575 # Jujuy (JY)
       
   576 Zone America/Argentina/Jujuy -4:21:12 -	LMT	1894 Oct 31
       
   577 			-4:16:48 -	CMT	1920 May
       
   578 			-4:00	-	ART	1930 Dec
       
   579 			-4:00	Arg	AR%sT	1969 Oct  5
       
   580 			-3:00	Arg	AR%sT	1990 Mar  4
       
   581 			-4:00	-	WART	1990 Oct 28
       
   582 			-4:00	1:00	WARST	1991 Mar 17
       
   583 			-4:00	-	WART	1991 Oct  6
       
   584 			-3:00	1:00	ARST	1992
       
   585 			-3:00	Arg	AR%sT	1999 Oct  3
       
   586 			-4:00	Arg	AR%sT	2000 Mar  3
       
   587 			-3:00	Arg	AR%sT	2008 Oct 18
       
   588 			-3:00	-	ART
       
   589 #
       
   590 # Catamarca (CT), Chubut (CH)
       
   591 Zone America/Argentina/Catamarca -4:23:08 - LMT	1894 Oct 31
       
   592 			-4:16:48 -	CMT	1920 May
       
   593 			-4:00	-	ART	1930 Dec
       
   594 			-4:00	Arg	AR%sT	1969 Oct  5
       
   595 			-3:00	Arg	AR%sT	1991 Mar  3
       
   596 			-4:00	-	WART	1991 Oct 20
       
   597 			-3:00	Arg	AR%sT	1999 Oct  3
       
   598 			-4:00	Arg	AR%sT	2000 Mar  3
       
   599 			-3:00	-	ART	2004 Jun  1
       
   600 			-4:00	-	WART	2004 Jun 20
       
   601 			-3:00	Arg	AR%sT	2008 Oct 18
       
   602 			-3:00	-	ART
       
   603 #
       
   604 # Mendoza (MZ)
       
   605 Zone America/Argentina/Mendoza -4:35:16 - LMT	1894 Oct 31
       
   606 			-4:16:48 -	CMT	1920 May
       
   607 			-4:00	-	ART	1930 Dec
       
   608 			-4:00	Arg	AR%sT	1969 Oct  5
       
   609 			-3:00	Arg	AR%sT	1990 Mar  4
       
   610 			-4:00	-	WART	1990 Oct 15
       
   611 			-4:00	1:00	WARST	1991 Mar  1
       
   612 			-4:00	-	WART	1991 Oct 15
       
   613 			-4:00	1:00	WARST	1992 Mar  1
       
   614 			-4:00	-	WART	1992 Oct 18
       
   615 			-3:00	Arg	AR%sT	1999 Oct  3
       
   616 			-4:00	Arg	AR%sT	2000 Mar  3
       
   617 			-3:00	-	ART	2004 May 23
       
   618 			-4:00	-	WART	2004 Sep 26
       
   619 			-3:00	Arg	AR%sT	2008 Oct 18
       
   620 			-3:00	-	ART
       
   621 #
       
   622 # San Luis (SL)
       
   623 
       
   624 Rule	SanLuis	2008	2009	-	Mar	Sun>=8	0:00	0	-
       
   625 Rule	SanLuis	2007	2008	-	Oct	Sun>=8	0:00	1:00	S
       
   626 
       
   627 Zone America/Argentina/San_Luis -4:25:24 - LMT	1894 Oct 31
       
   628 			-4:16:48 -	CMT	1920 May
       
   629 			-4:00	-	ART	1930 Dec
       
   630 			-4:00	Arg	AR%sT	1969 Oct  5
       
   631 			-3:00	Arg	AR%sT	1990
       
   632 			-3:00	1:00	ARST	1990 Mar 14
       
   633 			-4:00	-	WART	1990 Oct 15
       
   634 			-4:00	1:00	WARST	1991 Mar  1
       
   635 			-4:00	-	WART	1991 Jun  1
       
   636 			-3:00	-	ART	1999 Oct  3
       
   637 			-4:00	1:00	WARST	2000 Mar  3
       
   638 			-3:00	-	ART	2004 May 31
       
   639 			-4:00	-	WART	2004 Jul 25
       
   640 			-3:00	Arg	AR%sT	2008 Jan 21
       
   641 			-4:00	SanLuis	WAR%sT	2009 Oct 11
       
   642 			-3:00	-	ART
       
   643 #
       
   644 # Santa Cruz (SC)
       
   645 Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31
       
   646 			-4:16:48 -	CMT	1920 May # Cordoba Mean Time
       
   647 			-4:00	-	ART	1930 Dec
       
   648 			-4:00	Arg	AR%sT	1969 Oct  5
       
   649 			-3:00	Arg	AR%sT	1999 Oct  3
       
   650 			-4:00	Arg	AR%sT	2000 Mar  3
       
   651 			-3:00	-	ART	2004 Jun  1
       
   652 			-4:00	-	WART	2004 Jun 20
       
   653 			-3:00	Arg	AR%sT	2008 Oct 18
       
   654 			-3:00	-	ART
       
   655 #
       
   656 # Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF)
       
   657 Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31
       
   658 			-4:16:48 -	CMT	1920 May # Cordoba Mean Time
       
   659 			-4:00	-	ART	1930 Dec
       
   660 			-4:00	Arg	AR%sT	1969 Oct  5
       
   661 			-3:00	Arg	AR%sT	1999 Oct  3
       
   662 			-4:00	Arg	AR%sT	2000 Mar  3
       
   663 			-3:00	-	ART	2004 May 30
       
   664 			-4:00	-	WART	2004 Jun 20
       
   665 			-3:00	Arg	AR%sT	2008 Oct 18
       
   666 			-3:00	-	ART
       
   667 
       
   668 # Aruba
       
   669 Link America/Curacao America/Aruba
       
   670 
       
   671 # Bolivia
       
   672 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
   673 Zone	America/La_Paz	-4:32:36 -	LMT	1890
       
   674 			-4:32:36 -	CMT	1931 Oct 15 # Calamarca MT
       
   675 			-4:32:36 1:00	BOST	1932 Mar 21 # Bolivia ST
       
   676 			-4:00	-	BOT	# Bolivia Time
       
   677 
       
   678 # Brazil
       
   679 
       
   680 # From Paul Eggert (1993-11-18):
       
   681 # The mayor of Rio recently attempted to change the time zone rules
       
   682 # just in his city, in order to leave more summer time for the tourist trade.
       
   683 # The rule change lasted only part of the day;
       
   684 # the federal government refused to follow the city's rules, and business
       
   685 # was in a chaos, so the mayor backed down that afternoon.
       
   686 
       
   687 # From IATA SSIM (1996-02):
       
   688 # _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS),
       
   689 # Santa Catarina (SC), Parana (PR), Sao Paulo (SP), Rio de Janeiro (RJ),
       
   690 # Espirito Santo (ES), Minas Gerais (MG), Bahia (BA), Goias (GO),
       
   691 # Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL].
       
   692 # [The last three states are new to this issue of the IATA SSIM.]
       
   693 
       
   694 # From Gwillim Law (1996-10-07):
       
   695 # Geography, history (Tocantins was part of Goias until 1989), and other
       
   696 # sources of time zone information lead me to believe that AL, SE, and TO were
       
   697 # always in BR1, and so the only change was whether or not they observed DST....
       
   698 # The earliest issue of the SSIM I have is 2/91.  Each issue from then until
       
   699 # 9/95 says that DST is observed only in the ten states I quoted from 9/95,
       
   700 # along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2
       
   701 # (UTC-4)....  The other two time zones given for Brazil are BR3, which is
       
   702 # UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is
       
   703 # UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's
       
   704 # become part of the state of Pernambuco).  The boundary between BR1 and BR2
       
   705 # has never been clearly stated.  They've simply been called East and West.
       
   706 # However, some conclusions can be drawn from another IATA manual: the Airline
       
   707 # Coding Directory, which lists close to 400 airports in Brazil.  For each
       
   708 # airport it gives a time zone which is coded to the SSIM.  From that
       
   709 # information, I'm led to conclude that the states of Amapa (AP), Ceara (CE),
       
   710 # Maranhao (MA), Paraiba (PR), Pernambuco (PE), Piaui (PI), and Rio Grande do
       
   711 # Norte (RN), and the eastern part of Para (PA) are all in BR1 without DST.
       
   712 
       
   713 # From Marcos Tadeu (1998-09-27):
       
   714 # <a href="http://pcdsh01.on.br/verao1.html">
       
   715 # Brazilian official page
       
   716 # </a>
       
   717 
       
   718 # From Jesper Norgaard (2000-11-03):
       
   719 # [For an official list of which regions in Brazil use which time zones, see:]
       
   720 # http://pcdsh01.on.br/Fusbr.htm
       
   721 # http://pcdsh01.on.br/Fusbrhv.htm
       
   722 
       
   723 # From Celso Doria via David Madeo (2002-10-09):
       
   724 # The reason for the delay this year has to do with elections in Brazil.
       
   725 #
       
   726 # Unlike in the United States, elections in Brazil are 100% computerized and
       
   727 # the results are known almost immediately.  Yesterday, it was the first
       
   728 # round of the elections when 115 million Brazilians voted for President,
       
   729 # Governor, Senators, Federal Deputies, and State Deputies.  Nobody is
       
   730 # counting (or re-counting) votes anymore and we know there will be a second
       
   731 # round for the Presidency and also for some Governors.  The 2nd round will
       
   732 # take place on October 27th.
       
   733 #
       
   734 # The reason why the DST will only begin November 3rd is that the thousands
       
   735 # of electoral machines used cannot have their time changed, and since the
       
   736 # Constitution says the elections must begin at 8:00 AM and end at 5:00 PM,
       
   737 # the Government decided to postpone DST, instead of changing the Constitution
       
   738 # (maybe, for the next elections, it will be possible to change the clock)...
       
   739 
       
   740 # From Rodrigo Severo (2004-10-04):
       
   741 # It's just the biannual change made necessary by the much hyped, supposedly
       
   742 # modern Brazilian eletronic voting machines which, apparently, can't deal
       
   743 # with a time change between the first and the second rounds of the elections.
       
   744 
       
   745 # From Steffen Thorsen (2007-09-20):
       
   746 # Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00:
       
   747 # http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975
       
   748 
       
   749 # From Paul Schulze (2008-06-24):
       
   750 # ...by law number 11.662 of April 24, 2008 (published in the "Diario
       
   751 # Oficial da Uniao"...) in Brazil there are changes in the timezones,
       
   752 # effective today (00:00am at June 24, 2008) as follows:
       
   753 #
       
   754 # a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the
       
   755 # part of the Amazonas state that had this timezone now being put to the
       
   756 # timezone UTC+4
       
   757 # b) The whole Para state now is put at timezone UTC+3, instead of just
       
   758 # part of it, as was before.
       
   759 #
       
   760 # This change follows a proposal of senator Tiao Viana of Acre state, that
       
   761 # proposed it due to concerns about open television channels displaying
       
   762 # programs inappropriate to youths in the states that had the timezone
       
   763 # UTC+5 too early in the night. In the occasion, some more corrections
       
   764 # were proposed, trying to unify the timezones of any given state. This
       
   765 # change modifies timezone rules defined in decree 2.784 of 18 June,
       
   766 # 1913.
       
   767 
       
   768 # From Rodrigo Severo (2008-06-24):
       
   769 # Just correcting the URL:
       
   770 # <a href="https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008">
       
   771 # https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008
       
   772 # </a>
       
   773 #
       
   774 # As a result of the above Decree I believe the America/Rio_Branco
       
   775 # timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall
       
   776 # be created to represent the...west side of the Para State. I
       
   777 # suggest this new timezone be called Santarem as the most
       
   778 # important/populated city in the affected area.
       
   779 #
       
   780 # This new timezone would be the same as the Rio_Branco timezone up to
       
   781 # the 2008/06/24 change which would be to UTC-3 instead of UTC-4.
       
   782 
       
   783 # From Alex Krivenyshev (2008-06-24):
       
   784 # This is a quick reference page for New and Old Brazil Time Zones map.
       
   785 # <a href="http://www.worldtimezone.com/brazil-time-new-old.php">
       
   786 # http://www.worldtimezone.com/brazil-time-new-old.php
       
   787 # </a>
       
   788 #
       
   789 # - 4 time zones replaced by 3 time zones-eliminating time zone UTC- 05
       
   790 # (state Acre and the part of the Amazonas will be UTC/GMT- 04) - western
       
   791 # part of Par state is moving to one timezone UTC- 03 (from UTC -04).
       
   792 
       
   793 # From Paul Eggert (2002-10-10):
       
   794 # The official decrees referenced below are mostly taken from
       
   795 # <a href="http://pcdsh01.on.br/DecHV.html">
       
   796 # Decretos sobre o Horario de Verao no Brasil
       
   797 # </a>.
       
   798 
       
   799 # From Steffen Thorsen (2008-08-29):
       
   800 # As announced by the government and many newspapers in Brazil late
       
   801 # yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and
       
   802 # it will end on 2009-02-15 (current rule for Brazil is fine). Based on
       
   803 # past years experience with the elections, there was a good chance that
       
   804 # the start was postponed to November, but it did not happen this year.
       
   805 #
       
   806 # It has not yet been posted to http://pcdsh01.on.br/DecHV.html
       
   807 #
       
   808 # An official page about it:
       
   809 # <a href="http://www.mme.gov.br/site/news/detail.do?newsId=16722">
       
   810 # http://www.mme.gov.br/site/news/detail.do?newsId=16722
       
   811 # </a>
       
   812 # Note that this link does not always work directly, but must be accessed
       
   813 # by going to
       
   814 # <a href="http://www.mme.gov.br/first">
       
   815 # http://www.mme.gov.br/first
       
   816 # </a>
       
   817 #
       
   818 # One example link that works directly:
       
   819 # <a href="http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54">
       
   820 # http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54
       
   821 # (Portuguese)
       
   822 # </a>
       
   823 #
       
   824 # We have a written a short article about it as well:
       
   825 # <a href="http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html">
       
   826 # http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html
       
   827 # </a>
       
   828 #
       
   829 # From Alexander Krivenyshev (2011-10-04):
       
   830 # State Bahia will return to Daylight savings time this year after 8 years off.
       
   831 # The announcement was made by Governor Jaques Wagner in an interview to a
       
   832 # television station in Salvador.
       
   833 
       
   834 # In Portuguese:
       
   835 # <a href="http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html">
       
   836 # http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html
       
   837 # </a> and
       
   838 # <a href="http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html">
       
   839 # http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html
       
   840 # </a>
       
   841 
       
   842 # From Guilherme Bernardes Rodrigues (2011-10-07):
       
   843 # There is news in the media, however there is still no decree about it.
       
   844 # I just send a e-mail to Zulmira Brandao at
       
   845 # <a href="http://pcdsh01.on.br/">http://pcdsh01.on.br/</a> the
       
   846 # official agency about time in Brazil, and she confirmed that the old rule is
       
   847 # still in force.
       
   848 
       
   849 # From Guilherme Bernardes Rodrigues (2011-10-14)
       
   850 # It's official, the President signed a decree that includes Bahia in summer
       
   851 # time.
       
   852 #	 [ and in a second message (same day): ]
       
   853 # I found the decree.
       
   854 #
       
   855 # DECRETO No- 7.584, DE 13 DE OUTUBRO DE 2011
       
   856 # Link :
       
   857 # <a href="http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6">
       
   858 # http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6
       
   859 # </a>
       
   860 
       
   861 # From Kelley Cook (2012-10-16):
       
   862 # The governor of state of Bahia in Brazil announced on Thursday that
       
   863 # due to public pressure, he is reversing the DST policy they implemented
       
   864 # last year and will not be going to Summer Time on October 21st....
       
   865 # http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia
       
   866 
       
   867 # From Rodrigo Severo (2012-10-16):
       
   868 # Tocantins state will have DST.
       
   869 # http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html
       
   870 
       
   871 # From Steffen Thorsen (2013-09-20):
       
   872 # Tocantins in Brazil is very likely not to observe DST from October....
       
   873 # http://conexaoto.com.br/2013/09/18/ministerio-confirma-que-tocantins-esta-fora-do-horario-de-verao-em-2013-mas-falta-publicacao-de-decreto
       
   874 # We will keep this article updated when this is confirmed:
       
   875 # http://www.timeanddate.com/news/time/brazil-starts-dst-2013.html
       
   876 
       
   877 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
       
   878 # Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01)
       
   879 # Decree <a href="http://pcdsh01.on.br/HV21896.htm">21,896</a> (1932-01-10)
       
   880 Rule	Brazil	1931	only	-	Oct	 3	11:00	1:00	S
       
   881 Rule	Brazil	1932	1933	-	Apr	 1	 0:00	0	-
       
   882 Rule	Brazil	1932	only	-	Oct	 3	 0:00	1:00	S
       
   883 # Decree <a href="http://pcdsh01.on.br/HV23195.htm">23,195</a> (1933-10-10)
       
   884 # revoked DST.
       
   885 # Decree <a href="http://pcdsh01.on.br/HV27496.htm">27,496</a> (1949-11-24)
       
   886 # Decree <a href="http://pcdsh01.on.br/HV27998.htm">27,998</a> (1950-04-13)
       
   887 Rule	Brazil	1949	1952	-	Dec	 1	 0:00	1:00	S
       
   888 Rule	Brazil	1950	only	-	Apr	16	 1:00	0	-
       
   889 Rule	Brazil	1951	1952	-	Apr	 1	 0:00	0	-
       
   890 # Decree <a href="http://pcdsh01.on.br/HV32308.htm">32,308</a> (1953-02-24)
       
   891 Rule	Brazil	1953	only	-	Mar	 1	 0:00	0	-
       
   892 # Decree <a href="http://pcdsh01.on.br/HV34724.htm">34,724</a> (1953-11-30)
       
   893 # revoked DST.
       
   894 # Decree <a href="http://pcdsh01.on.br/HV52700.htm">52,700</a> (1963-10-18)
       
   895 # established DST from 1963-10-23 00:00 to 1964-02-29 00:00
       
   896 # in SP, RJ, GB, MG, ES, due to the prolongation of the drought.
       
   897 # Decree <a href="http://pcdsh01.on.br/HV53071.htm">53,071</a> (1963-12-03)
       
   898 # extended the above decree to all of the national territory on 12-09.
       
   899 Rule	Brazil	1963	only	-	Dec	 9	 0:00	1:00	S
       
   900 # Decree <a href="http://pcdsh01.on.br/HV53604.htm">53,604</a> (1964-02-25)
       
   901 # extended summer time by one day to 1964-03-01 00:00 (start of school).
       
   902 Rule	Brazil	1964	only	-	Mar	 1	 0:00	0	-
       
   903 # Decree <a href="http://pcdsh01.on.br/HV55639.htm">55,639</a> (1965-01-27)
       
   904 Rule	Brazil	1965	only	-	Jan	31	 0:00	1:00	S
       
   905 Rule	Brazil	1965	only	-	Mar	31	 0:00	0	-
       
   906 # Decree <a href="http://pcdsh01.on.br/HV57303.htm">57,303</a> (1965-11-22)
       
   907 Rule	Brazil	1965	only	-	Dec	 1	 0:00	1:00	S
       
   908 # Decree <a href="http://pcdsh01.on.br/HV57843.htm">57,843</a> (1966-02-18)
       
   909 Rule	Brazil	1966	1968	-	Mar	 1	 0:00	0	-
       
   910 Rule	Brazil	1966	1967	-	Nov	 1	 0:00	1:00	S
       
   911 # Decree <a href="http://pcdsh01.on.br/HV63429.htm">63,429</a> (1968-10-15)
       
   912 # revoked DST.
       
   913 # Decree <a href="http://pcdsh01.on.br/HV91698.htm">91,698</a> (1985-09-27)
       
   914 Rule	Brazil	1985	only	-	Nov	 2	 0:00	1:00	S
       
   915 # Decree 92,310 (1986-01-21)
       
   916 # Decree 92,463 (1986-03-13)
       
   917 Rule	Brazil	1986	only	-	Mar	15	 0:00	0	-
       
   918 # Decree 93,316 (1986-10-01)
       
   919 Rule	Brazil	1986	only	-	Oct	25	 0:00	1:00	S
       
   920 Rule	Brazil	1987	only	-	Feb	14	 0:00	0	-
       
   921 # Decree <a href="http://pcdsh01.on.br/HV94922.htm">94,922</a> (1987-09-22)
       
   922 Rule	Brazil	1987	only	-	Oct	25	 0:00	1:00	S
       
   923 Rule	Brazil	1988	only	-	Feb	 7	 0:00	0	-
       
   924 # Decree <a href="http://pcdsh01.on.br/HV96676.htm">96,676</a> (1988-09-12)
       
   925 # except for the states of AC, AM, PA, RR, RO, and AP (then a territory)
       
   926 Rule	Brazil	1988	only	-	Oct	16	 0:00	1:00	S
       
   927 Rule	Brazil	1989	only	-	Jan	29	 0:00	0	-
       
   928 # Decree <a href="http://pcdsh01.on.br/HV98077.htm">98,077</a> (1989-08-21)
       
   929 # with the same exceptions
       
   930 Rule	Brazil	1989	only	-	Oct	15	 0:00	1:00	S
       
   931 Rule	Brazil	1990	only	-	Feb	11	 0:00	0	-
       
   932 # Decree <a href="http://pcdsh01.on.br/HV99530.htm">99,530</a> (1990-09-17)
       
   933 # adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF.
       
   934 # Decree 99,629 (1990-10-19) adds BA, MT.
       
   935 Rule	Brazil	1990	only	-	Oct	21	 0:00	1:00	S
       
   936 Rule	Brazil	1991	only	-	Feb	17	 0:00	0	-
       
   937 # <a href="http://pcdsh01.on.br/HV1991.htm">Unnumbered decree</a> (1991-09-25)
       
   938 # adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF.
       
   939 Rule	Brazil	1991	only	-	Oct	20	 0:00	1:00	S
       
   940 Rule	Brazil	1992	only	-	Feb	 9	 0:00	0	-
       
   941 # <a href="http://pcdsh01.on.br/HV1992.htm">Unnumbered decree</a> (1992-10-16)
       
   942 # adopted by same states.
       
   943 Rule	Brazil	1992	only	-	Oct	25	 0:00	1:00	S
       
   944 Rule	Brazil	1993	only	-	Jan	31	 0:00	0	-
       
   945 # Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28)
       
   946 # adopted by same states, plus AM.
       
   947 # Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22;
       
   948 # web page corrected 2004-01-07) adopted by same states, minus AM.
       
   949 # Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14)
       
   950 # adopted by same states, plus MT and TO.
       
   951 # Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13)
       
   952 # adds AL, SE.
       
   953 Rule	Brazil	1993	1995	-	Oct	Sun>=11	 0:00	1:00	S
       
   954 Rule	Brazil	1994	1995	-	Feb	Sun>=15	 0:00	0	-
       
   955 Rule	Brazil	1996	only	-	Feb	11	 0:00	0	-
       
   956 # Decree <a href="http://pcdsh01.on.br/HV2000.htm">2,000</a> (1996-09-04)
       
   957 # adopted by same states, minus AL, SE.
       
   958 Rule	Brazil	1996	only	-	Oct	 6	 0:00	1:00	S
       
   959 Rule	Brazil	1997	only	-	Feb	16	 0:00	0	-
       
   960 # From Daniel C. Sobral (1998-02-12):
       
   961 # In 1997, the DS began on October 6. The stated reason was that
       
   962 # because international television networks ignored Brazil's policy on DS,
       
   963 # they bought the wrong times on satellite for coverage of Pope's visit.
       
   964 # This year, the ending date of DS was postponed to March 1
       
   965 # to help dealing with the shortages of electric power.
       
   966 #
       
   967 # Decree 2,317 (1997-09-04), adopted by same states.
       
   968 Rule	Brazil	1997	only	-	Oct	 6	 0:00	1:00	S
       
   969 # Decree <a href="http://pcdsh01.on.br/figuras/HV2495.JPG">2,495</a>
       
   970 # (1998-02-10)
       
   971 Rule	Brazil	1998	only	-	Mar	 1	 0:00	0	-
       
   972 # Decree <a href="http://pcdsh01.on.br/figuras/Hv98.jpg">2,780</a> (1998-09-11)
       
   973 # adopted by the same states as before.
       
   974 Rule	Brazil	1998	only	-	Oct	11	 0:00	1:00	S
       
   975 Rule	Brazil	1999	only	-	Feb	21	 0:00	0	-
       
   976 # Decree <a href="http://pcdsh01.on.br/figuras/HV3150.gif">3,150</a>
       
   977 # (1999-08-23) adopted by same states.
       
   978 # Decree <a href="http://pcdsh01.on.br/DecHV99.gif">3,188</a> (1999-09-30)
       
   979 # adds SE, AL, PB, PE, RN, CE, PI, MA and RR.
       
   980 Rule	Brazil	1999	only	-	Oct	 3	 0:00	1:00	S
       
   981 Rule	Brazil	2000	only	-	Feb	27	 0:00	0	-
       
   982 # Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3,592</a> (2000-09-06)
       
   983 # adopted by the same states as before.
       
   984 # Decree <a href="http://pcdsh01.on.br/Dec3630.jpg">3,630</a> (2000-10-13)
       
   985 # repeals DST in PE and RR, effective 2000-10-15 00:00.
       
   986 # Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17)
       
   987 # repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00.
       
   988 # Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a>
       
   989 # (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE.
       
   990 Rule	Brazil	2000	2001	-	Oct	Sun>=8	 0:00	1:00	S
       
   991 Rule	Brazil	2001	2006	-	Feb	Sun>=15	 0:00	0	-
       
   992 # Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE.
       
   993 # <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm">4,399</a>
       
   994 Rule	Brazil	2002	only	-	Nov	 3	 0:00	1:00	S
       
   995 # Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO.
       
   996 # <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm">4,844</a>
       
   997 Rule	Brazil	2003	only	-	Oct	19	 0:00	1:00	S
       
   998 # Decree 5,223 (2004-10-01) reestablishes DST in MT.
       
   999 # <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm">5,223</a>
       
  1000 Rule	Brazil	2004	only	-	Nov	 2	 0:00	1:00	S
       
  1001 # Decree <a href="http://pcdsh01.on.br/DecHV5539.gif">5,539</a> (2005-09-19),
       
  1002 # adopted by the same states as before.
       
  1003 Rule	Brazil	2005	only	-	Oct	16	 0:00	1:00	S
       
  1004 # Decree <a href="http://pcdsh01.on.br/DecHV5920.gif">5,920</a> (2006-10-03),
       
  1005 # adopted by the same states as before.
       
  1006 Rule	Brazil	2006	only	-	Nov	 5	 0:00	1:00	S
       
  1007 Rule	Brazil	2007	only	-	Feb	25	 0:00	0	-
       
  1008 # Decree <a href="http://pcdsh01.on.br/DecHV6212.gif">6,212</a> (2007-09-26),
       
  1009 # adopted by the same states as before.
       
  1010 Rule	Brazil	2007	only	-	Oct	Sun>=8	 0:00	1:00	S
       
  1011 # From Frederico A. C. Neves (2008-09-10):
       
  1012 # According to this decree
       
  1013 # <a href="http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm">
       
  1014 # http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm
       
  1015 # </a>
       
  1016 # [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the
       
  1017 # 3rd Feb Sunday. There is an exception on the return date when this is
       
  1018 # the Carnival Sunday then the return date will be the next Sunday...
       
  1019 Rule	Brazil	2008	max	-	Oct	Sun>=15	0:00	1:00	S
       
  1020 Rule	Brazil	2008	2011	-	Feb	Sun>=15	0:00	0	-
       
  1021 Rule	Brazil	2012	only	-	Feb	Sun>=22	0:00	0	-
       
  1022 Rule	Brazil	2013	2014	-	Feb	Sun>=15	0:00	0	-
       
  1023 Rule	Brazil	2015	only	-	Feb	Sun>=22	0:00	0	-
       
  1024 Rule	Brazil	2016	2022	-	Feb	Sun>=15	0:00	0	-
       
  1025 Rule	Brazil	2023	only	-	Feb	Sun>=22	0:00	0	-
       
  1026 Rule	Brazil	2024	2025	-	Feb	Sun>=15	0:00	0	-
       
  1027 Rule	Brazil	2026	only	-	Feb	Sun>=22	0:00	0	-
       
  1028 Rule	Brazil	2027	2033	-	Feb	Sun>=15	0:00	0	-
       
  1029 Rule	Brazil	2034	only	-	Feb	Sun>=22	0:00	0	-
       
  1030 Rule	Brazil	2035	2036	-	Feb	Sun>=15	0:00	0	-
       
  1031 Rule	Brazil	2037	only	-	Feb	Sun>=22	0:00	0	-
       
  1032 # From Arthur David Olson (2008-09-29):
       
  1033 # The next is wrong in some years but is better than nothing.
       
  1034 Rule	Brazil	2038	max	-	Feb	Sun>=15	0:00	0	-
       
  1035 
       
  1036 # The latest ruleset listed above says that the following states observe DST:
       
  1037 # DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP.
       
  1038 
       
  1039 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1040 #
       
  1041 # Fernando de Noronha (administratively part of PE)
       
  1042 Zone America/Noronha	-2:09:40 -	LMT	1914
       
  1043 			-2:00	Brazil	FN%sT	1990 Sep 17
       
  1044 			-2:00	-	FNT	1999 Sep 30
       
  1045 			-2:00	Brazil	FN%sT	2000 Oct 15
       
  1046 			-2:00	-	FNT	2001 Sep 13
       
  1047 			-2:00	Brazil	FN%sT	2002 Oct  1
       
  1048 			-2:00	-	FNT
       
  1049 # Other Atlantic islands have no permanent settlement.
       
  1050 # These include Trindade and Martin Vaz (administratively part of ES),
       
  1051 # Atol das Rocas (RN), and Penedos de Sao Pedro e Sao Paulo (PE).
       
  1052 # Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01;
       
  1053 # it also included the Penedos.
       
  1054 #
       
  1055 # Amapa (AP), east Para (PA)
       
  1056 # East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu.
       
  1057 # The division between east and west Para is the river Xingu.
       
  1058 # In the north a very small part from the river Javary (now Jari I guess,
       
  1059 # the border with Amapa) to the Amazon, then to the Xingu.
       
  1060 Zone America/Belem	-3:13:56 -	LMT	1914
       
  1061 			-3:00	Brazil	BR%sT	1988 Sep 12
       
  1062 			-3:00	-	BRT
       
  1063 #
       
  1064 # west Para (PA)
       
  1065 # West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem.
       
  1066 Zone America/Santarem	-3:38:48 -	LMT	1914
       
  1067 			-4:00	Brazil	AM%sT	1988 Sep 12
       
  1068 			-4:00	-	AMT	2008 Jun 24 00:00
       
  1069 			-3:00	-	BRT
       
  1070 #
       
  1071 # Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN),
       
  1072 # Paraiba (PB)
       
  1073 Zone America/Fortaleza	-2:34:00 -	LMT	1914
       
  1074 			-3:00	Brazil	BR%sT	1990 Sep 17
       
  1075 			-3:00	-	BRT	1999 Sep 30
       
  1076 			-3:00	Brazil	BR%sT	2000 Oct 22
       
  1077 			-3:00	-	BRT	2001 Sep 13
       
  1078 			-3:00	Brazil	BR%sT	2002 Oct  1
       
  1079 			-3:00	-	BRT
       
  1080 #
       
  1081 # Pernambuco (PE) (except Atlantic islands)
       
  1082 Zone America/Recife	-2:19:36 -	LMT	1914
       
  1083 			-3:00	Brazil	BR%sT	1990 Sep 17
       
  1084 			-3:00	-	BRT	1999 Sep 30
       
  1085 			-3:00	Brazil	BR%sT	2000 Oct 15
       
  1086 			-3:00	-	BRT	2001 Sep 13
       
  1087 			-3:00	Brazil	BR%sT	2002 Oct  1
       
  1088 			-3:00	-	BRT
       
  1089 #
       
  1090 # Tocantins (TO)
       
  1091 Zone America/Araguaina	-3:12:48 -	LMT	1914
       
  1092 			-3:00	Brazil	BR%sT	1990 Sep 17
       
  1093 			-3:00	-	BRT	1995 Sep 14
       
  1094 			-3:00	Brazil	BR%sT	2003 Sep 24
       
  1095 			-3:00	-	BRT	2012 Oct 21
       
  1096 			-3:00	Brazil	BR%sT	2013 Sep
       
  1097 			-3:00	-	BRT
       
  1098 #
       
  1099 # Alagoas (AL), Sergipe (SE)
       
  1100 Zone America/Maceio	-2:22:52 -	LMT	1914
       
  1101 			-3:00	Brazil	BR%sT	1990 Sep 17
       
  1102 			-3:00	-	BRT	1995 Oct 13
       
  1103 			-3:00	Brazil	BR%sT	1996 Sep  4
       
  1104 			-3:00	-	BRT	1999 Sep 30
       
  1105 			-3:00	Brazil	BR%sT	2000 Oct 22
       
  1106 			-3:00	-	BRT	2001 Sep 13
       
  1107 			-3:00	Brazil	BR%sT	2002 Oct  1
       
  1108 			-3:00	-	BRT
       
  1109 #
       
  1110 # Bahia (BA)
       
  1111 # There are too many Salvadors elsewhere, so use America/Bahia instead
       
  1112 # of America/Salvador.
       
  1113 Zone America/Bahia	-2:34:04 -	LMT	1914
       
  1114 			-3:00	Brazil	BR%sT	2003 Sep 24
       
  1115 			-3:00	-	BRT	2011 Oct 16
       
  1116 			-3:00	Brazil	BR%sT	2012 Oct 21
       
  1117 			-3:00	-	BRT
       
  1118 #
       
  1119 # Goias (GO), Distrito Federal (DF), Minas Gerais (MG),
       
  1120 # Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR),
       
  1121 # Santa Catarina (SC), Rio Grande do Sul (RS)
       
  1122 Zone America/Sao_Paulo	-3:06:28 -	LMT	1914
       
  1123 			-3:00	Brazil	BR%sT	1963 Oct 23 00:00
       
  1124 			-3:00	1:00	BRST	1964
       
  1125 			-3:00	Brazil	BR%sT
       
  1126 #
       
  1127 # Mato Grosso do Sul (MS)
       
  1128 Zone America/Campo_Grande -3:38:28 -	LMT	1914
       
  1129 			-4:00	Brazil	AM%sT
       
  1130 #
       
  1131 # Mato Grosso (MT)
       
  1132 Zone America/Cuiaba	-3:44:20 -	LMT	1914
       
  1133 			-4:00	Brazil	AM%sT	2003 Sep 24
       
  1134 			-4:00	-	AMT	2004 Oct  1
       
  1135 			-4:00	Brazil	AM%sT
       
  1136 #
       
  1137 # Rondonia (RO)
       
  1138 Zone America/Porto_Velho -4:15:36 -	LMT	1914
       
  1139 			-4:00	Brazil	AM%sT	1988 Sep 12
       
  1140 			-4:00	-	AMT
       
  1141 #
       
  1142 # Roraima (RR)
       
  1143 Zone America/Boa_Vista	-4:02:40 -	LMT	1914
       
  1144 			-4:00	Brazil	AM%sT	1988 Sep 12
       
  1145 			-4:00	-	AMT	1999 Sep 30
       
  1146 			-4:00	Brazil	AM%sT	2000 Oct 15
       
  1147 			-4:00	-	AMT
       
  1148 #
       
  1149 # east Amazonas (AM): Boca do Acre, Jutai, Manaus, Floriano Peixoto
       
  1150 # The great circle line from Tabatinga to Porto Acre divides
       
  1151 # east from west Amazonas.
       
  1152 Zone America/Manaus	-4:00:04 -	LMT	1914
       
  1153 			-4:00	Brazil	AM%sT	1988 Sep 12
       
  1154 			-4:00	-	AMT	1993 Sep 28
       
  1155 			-4:00	Brazil	AM%sT	1994 Sep 22
       
  1156 			-4:00	-	AMT
       
  1157 #
       
  1158 # west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant,
       
  1159 #	Eirunepe, Envira, Ipixuna
       
  1160 Zone America/Eirunepe	-4:39:28 -	LMT	1914
       
  1161 			-5:00	Brazil	AC%sT	1988 Sep 12
       
  1162 			-5:00	-	ACT	1993 Sep 28
       
  1163 			-5:00	Brazil	AC%sT	1994 Sep 22
       
  1164 			-5:00	-	ACT	2008 Jun 24 00:00
       
  1165 			-4:00	-	AMT
       
  1166 #
       
  1167 # Acre (AC)
       
  1168 Zone America/Rio_Branco	-4:31:12 -	LMT	1914
       
  1169 			-5:00	Brazil	AC%sT	1988 Sep 12
       
  1170 			-5:00	-	ACT	2008 Jun 24 00:00
       
  1171 			-4:00	-	AMT
       
  1172 
       
  1173 # Chile
       
  1174 
       
  1175 # From Eduardo Krell (1995-10-19):
       
  1176 # The law says to switch to DST at midnight [24:00] on the second SATURDAY
       
  1177 # of October....  The law is the same for March and October.
       
  1178 # (1998-09-29):
       
  1179 # Because of the drought this year, the government decided to go into
       
  1180 # DST earlier (saturday 9/26 at 24:00). This is a one-time change only ...
       
  1181 # (unless there's another dry season next year, I guess).
       
  1182 
       
  1183 # From Julio I. Pacheco Troncoso (1999-03-18):
       
  1184 # Because of the same drought, the government decided to end DST later,
       
  1185 # on April 3, (one-time change).
       
  1186 
       
  1187 # From Oscar van Vlijmen (2006-10-08):
       
  1188 # http://www.horaoficial.cl/cambio.htm
       
  1189 
       
  1190 # From Jesper Norgaard Welen (2006-10-08):
       
  1191 # I think that there are some obvious mistakes in the suggested link
       
  1192 # from Oscar van Vlijmen,... for instance entry 66 says that GMT-4
       
  1193 # ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15
       
  1194 # (they should have been 1990-09-15 and 1990-09-16 respectively), but
       
  1195 # anyhow it clears up some doubts too.
       
  1196 
       
  1197 # From Paul Eggert (2006-12-27):
       
  1198 # The following data for Chile and America/Santiago are from
       
  1199 # <http://www.horaoficial.cl/horaof.htm> (2006-09-20), transcribed by
       
  1200 # Jesper Norgaard Welen.  The data for Pacific/Easter are from Shanks
       
  1201 # & Pottenger, except with DST transitions after 1932 cloned from
       
  1202 # America/Santiago.  The pre-1980 Pacific/Easter data are dubious,
       
  1203 # but we have no other source.
       
  1204 
       
  1205 # From German Poo-Caaman~o (2008-03-03):
       
  1206 # Due to drought, Chile extends Daylight Time in three weeks.  This
       
  1207 # is one-time change (Saturday 3/29 at 24:00 for America/Santiago
       
  1208 # and Saturday 3/29 at 22:00 for Pacific/Easter)
       
  1209 # The Supreme Decree is located at
       
  1210 # <a href="http://www.shoa.cl/servicios/supremo316.pdf">
       
  1211 # http://www.shoa.cl/servicios/supremo316.pdf
       
  1212 # </a>
       
  1213 # and the instructions for 2008 are located in:
       
  1214 # <a href="http://www.horaoficial.cl/cambio.htm">
       
  1215 # http://www.horaoficial.cl/cambio.htm
       
  1216 # </a>.
       
  1217 
       
  1218 # From Jose Miguel Garrido (2008-03-05):
       
  1219 # ...
       
  1220 # You could see the announces of the change on
       
  1221 # <a href="http://www.shoa.cl/noticias/2008/04hora/hora.htm">
       
  1222 # http://www.shoa.cl/noticias/2008/04hora/hora.htm
       
  1223 # </a>.
       
  1224 
       
  1225 # From Angel Chiang (2010-03-04):
       
  1226 # Subject: DST in Chile exceptionally extended to 3 April due to earthquake
       
  1227 # <a href="http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098">
       
  1228 # http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098
       
  1229 # </a>
       
  1230 # (in Spanish, last paragraph).
       
  1231 #
       
  1232 # This is breaking news. There should be more information available later.
       
  1233 
       
  1234 # From Arthur Daivd Olson (2010-03-06):
       
  1235 # Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch.
       
  1236 
       
  1237 # From Glenn Eychaner (2011-03-02): [geychaner@mac.com]
       
  1238 # It appears that the Chilean government has decided to postpone the
       
  1239 # change from summer time to winter time again, by three weeks to April
       
  1240 # 2nd:
       
  1241 # <a href="http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651">
       
  1242 # http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651
       
  1243 # </a>
       
  1244 #
       
  1245 # This is not yet reflected in the official "cambio de hora" site, but
       
  1246 # probably will be soon:
       
  1247 # <a href="http://www.horaoficial.cl/cambio.htm">
       
  1248 # http://www.horaoficial.cl/cambio.htm
       
  1249 # </a>
       
  1250 
       
  1251 # From Arthur David Olson (2011-03-02):
       
  1252 # The emol.com article mentions a water shortage as the cause of the
       
  1253 # postponement, which may mean that it's not a permanent change.
       
  1254 
       
  1255 # From Glenn Eychaner (2011-03-28):
       
  1256 # The article:
       
  1257 # <a href="http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E}">
       
  1258 # http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E}
       
  1259 # </a>
       
  1260 #
       
  1261 # In English:
       
  1262 # Chile's clocks will go back an hour this year on the 7th of May instead
       
  1263 # of this Saturday. They will go forward again the 3rd Saturday in
       
  1264 # August, not in October as they have since 1968. This is a pilot plan
       
  1265 # which will be reevaluated in 2012.
       
  1266 
       
  1267 # From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23):
       
  1268 # As stated in the website of the Chilean Energy Ministry
       
  1269 # http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html
       
  1270 # The Chilean Government has decided to postpone the entrance into winter time
       
  1271 # (to leave DST) from March 11 2012 to April 28th 2012. The decision has not
       
  1272 # been yet formalized but it will within the next days.
       
  1273 # Quote from the website communication:
       
  1274 #
       
  1275 # 6. For the year 2012, the dates of entry into winter time will be as follows:
       
  1276 # a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at
       
  1277 # 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00
       
  1278 # of the same day.
       
  1279 # b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is,
       
  1280 # at 23:59:59, instead of passing to 0:00, the time should be adjusted to be
       
  1281 # 01:00 on September 2.
       
  1282 
       
  1283 # From Steffen Thorsen (2013-02-15):
       
  1284 # According to several news sources, Chile has extended DST this year,
       
  1285 # they will end DST later and start DST earlier than planned.  They
       
  1286 # hope to save energy.  The new end date is 2013-04-28 00:00 and new
       
  1287 # start date is 2013-09-08 00:00....
       
  1288 # http://www.gob.cl/informa/2013/02/15/gobierno-anuncia-fechas-de-cambio-de-hora-para-el-ano-2013.htm
       
  1289 
       
  1290 # NOTE: ChileAQ rules for Antarctic bases are stored separately in the
       
  1291 # 'antarctica' file.
       
  1292 
       
  1293 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
       
  1294 Rule	Chile	1927	1932	-	Sep	 1	0:00	1:00	S
       
  1295 Rule	Chile	1928	1932	-	Apr	 1	0:00	0	-
       
  1296 Rule	Chile	1942	only	-	Jun	 1	4:00u	0	-
       
  1297 Rule	Chile	1942	only	-	Aug	 1	5:00u	1:00	S
       
  1298 Rule	Chile	1946	only	-	Jul	15	4:00u	1:00	S
       
  1299 Rule	Chile	1946	only	-	Sep	 1	3:00u	0:00	-
       
  1300 Rule	Chile	1947	only	-	Apr	 1	4:00u	0	-
       
  1301 Rule	Chile	1968	only	-	Nov	 3	4:00u	1:00	S
       
  1302 Rule	Chile	1969	only	-	Mar	30	3:00u	0	-
       
  1303 Rule	Chile	1969	only	-	Nov	23	4:00u	1:00	S
       
  1304 Rule	Chile	1970	only	-	Mar	29	3:00u	0	-
       
  1305 Rule	Chile	1971	only	-	Mar	14	3:00u	0	-
       
  1306 Rule	Chile	1970	1972	-	Oct	Sun>=9	4:00u	1:00	S
       
  1307 Rule	Chile	1972	1986	-	Mar	Sun>=9	3:00u	0	-
       
  1308 Rule	Chile	1973	only	-	Sep	30	4:00u	1:00	S
       
  1309 Rule	Chile	1974	1987	-	Oct	Sun>=9	4:00u	1:00	S
       
  1310 Rule	Chile	1987	only	-	Apr	12	3:00u	0	-
       
  1311 Rule	Chile	1988	1989	-	Mar	Sun>=9	3:00u	0	-
       
  1312 Rule	Chile	1988	only	-	Oct	Sun>=1	4:00u	1:00	S
       
  1313 Rule	Chile	1989	only	-	Oct	Sun>=9	4:00u	1:00	S
       
  1314 Rule	Chile	1990	only	-	Mar	18	3:00u	0	-
       
  1315 Rule	Chile	1990	only	-	Sep	16	4:00u	1:00	S
       
  1316 Rule	Chile	1991	1996	-	Mar	Sun>=9	3:00u	0	-
       
  1317 Rule	Chile	1991	1997	-	Oct	Sun>=9	4:00u	1:00	S
       
  1318 Rule	Chile	1997	only	-	Mar	30	3:00u	0	-
       
  1319 Rule	Chile	1998	only	-	Mar	Sun>=9	3:00u	0	-
       
  1320 Rule	Chile	1998	only	-	Sep	27	4:00u	1:00	S
       
  1321 Rule	Chile	1999	only	-	Apr	 4	3:00u	0	-
       
  1322 Rule	Chile	1999	2010	-	Oct	Sun>=9	4:00u	1:00	S
       
  1323 Rule	Chile	2000	2007	-	Mar	Sun>=9	3:00u	0	-
       
  1324 # N.B.: the end of March 29 in Chile is March 30 in Universal time,
       
  1325 # which is used below in specifying the transition.
       
  1326 Rule	Chile	2008	only	-	Mar	30	3:00u	0	-
       
  1327 Rule	Chile	2009	only	-	Mar	Sun>=9	3:00u	0	-
       
  1328 Rule	Chile	2010	only	-	Apr	Sun>=1	3:00u	0	-
       
  1329 Rule	Chile	2011	only	-	May	Sun>=2	3:00u	0	-
       
  1330 Rule	Chile	2011	only	-	Aug	Sun>=16	4:00u	1:00	S
       
  1331 Rule	Chile	2012	max	-	Apr	Sun>=23	3:00u	0	-
       
  1332 Rule	Chile	2012	max	-	Sep	Sun>=2	4:00u	1:00	S
       
  1333 # IATA SSIM anomalies: (1992-02) says 1992-03-14;
       
  1334 # (1996-09) says 1998-03-08.  Ignore these.
       
  1335 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1336 Zone America/Santiago	-4:42:46 -	LMT	1890
       
  1337 			-4:42:46 -	SMT	1910 	    # Santiago Mean Time
       
  1338 			-5:00	-	CLT	1916 Jul  1 # Chile Time
       
  1339 			-4:42:46 -	SMT	1918 Sep  1 # Santiago Mean Time
       
  1340 			-4:00	-	CLT	1919 Jul  1 # Chile Time
       
  1341 			-4:42:46 -	SMT	1927 Sep  1 # Santiago Mean Time
       
  1342 			-5:00	Chile	CL%sT	1947 May 22 # Chile Time
       
  1343 			-4:00	Chile	CL%sT
       
  1344 Zone Pacific/Easter	-7:17:44 -	LMT	1890
       
  1345 			-7:17:28 -	EMT	1932 Sep    # Easter Mean Time
       
  1346 			-7:00	Chile	EAS%sT	1982 Mar 13 21:00 # Easter I Time
       
  1347 			-6:00	Chile	EAS%sT
       
  1348 #
       
  1349 # Sala y Gomez Island is like Pacific/Easter.
       
  1350 # Other Chilean locations, including Juan Fernandez Is, San Ambrosio,
       
  1351 # San Felix, and Antarctic bases, are like America/Santiago.
       
  1352 
       
  1353 # Colombia
       
  1354 
       
  1355 # Milne gives 4:56:16.4 for Bogota time in 1899; round to nearest.  He writes,
       
  1356 # "A variation of fifteen minutes in the public clocks of Bogota is not rare."
       
  1357 
       
  1358 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
       
  1359 Rule	CO	1992	only	-	May	 3	0:00	1:00	S
       
  1360 Rule	CO	1993	only	-	Apr	 4	0:00	0	-
       
  1361 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1362 Zone	America/Bogota	-4:56:16 -	LMT	1884 Mar 13
       
  1363 			-4:56:16 -	BMT	1914 Nov 23 # Bogota Mean Time
       
  1364 			-5:00	CO	CO%sT	# Colombia Time
       
  1365 # Malpelo, Providencia, San Andres
       
  1366 # no information; probably like America/Bogota
       
  1367 
       
  1368 # Curacao
       
  1369 
       
  1370 # Milne gives 4:35:46.9 for Curacao mean time; round to nearest.
       
  1371 #
       
  1372 # From Paul Eggert (2006-03-22):
       
  1373 # Shanks & Pottenger say that The Bottom and Philipsburg have been at
       
  1374 # -4:00 since standard time was introduced on 1912-03-02; and that
       
  1375 # Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from
       
  1376 # 1912-02-02 to 1965-01-01.  The former is dubious, since S&P also say
       
  1377 # Saba Island has been like Curacao.
       
  1378 # This all predates our 1970 cutoff, though.
       
  1379 #
       
  1380 # By July 2007 Curacao and St Maarten are planned to become
       
  1381 # associated states within the Netherlands, much like Aruba;
       
  1382 # Bonaire, Saba and St Eustatius would become directly part of the
       
  1383 # Netherlands as Kingdom Islands.  This won't affect their time zones
       
  1384 # though, as far as we know.
       
  1385 #
       
  1386 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1387 Zone	America/Curacao	-4:35:47 -	LMT	1912 Feb 12	# Willemstad
       
  1388 			-4:30	-	ANT	1965 # Netherlands Antilles Time
       
  1389 			-4:00	-	AST
       
  1390 
       
  1391 # From Arthur David Olson (2011-06-15):
       
  1392 # use links for places with new iso3166 codes.
       
  1393 # The name "Lower Prince's Quarter" is both longer than fourteen charaters
       
  1394 # and contains an apostrophe; use "Lower_Princes" below.
       
  1395 
       
  1396 Link	America/Curacao	America/Lower_Princes	# Sint Maarten
       
  1397 Link	America/Curacao	America/Kralendijk	# Caribbean Netherlands
       
  1398 
       
  1399 # Ecuador
       
  1400 #
       
  1401 # Milne says the Sentral and South American Telegraph Company used -5:24:15.
       
  1402 #
       
  1403 # From Paul Eggert (2007-03-04):
       
  1404 # Apparently Ecuador had a failed experiment with DST in 1992.
       
  1405 # <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and
       
  1406 # <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both
       
  1407 # talk about "hora Sixto".  Leave this alone for now, as we have no data.
       
  1408 #
       
  1409 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1410 Zone America/Guayaquil	-5:19:20 -	LMT	1890
       
  1411 			-5:14:00 -	QMT	1931 # Quito Mean Time
       
  1412 			-5:00	-	ECT	     # Ecuador Time
       
  1413 Zone Pacific/Galapagos	-5:58:24 -	LMT	1931 # Puerto Baquerizo Moreno
       
  1414 			-5:00	-	ECT	1986
       
  1415 			-6:00	-	GALT	     # Galapagos Time
       
  1416 
       
  1417 # Falklands
       
  1418 
       
  1419 # From Paul Eggert (2006-03-22):
       
  1420 # Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except
       
  1421 # the IATA gives 1996-09-08.  Go with Shanks & Pottenger.
       
  1422 
       
  1423 # From Falkland Islands Government Office, London (2001-01-22)
       
  1424 # via Jesper Norgaard:
       
  1425 # ... the clocks revert back to Local Mean Time at 2 am on Sunday 15
       
  1426 # April 2001 and advance one hour to summer time at 2 am on Sunday 2
       
  1427 # September.  It is anticipated that the clocks will revert back at 2
       
  1428 # am on Sunday 21 April 2002 and advance to summer time at 2 am on
       
  1429 # Sunday 1 September.
       
  1430 
       
  1431 # From Rives McDow (2001-02-13):
       
  1432 #
       
  1433 # I have communicated several times with people there, and the last
       
  1434 # time I had communications that was helpful was in 1998.  Here is
       
  1435 # what was said then:
       
  1436 #
       
  1437 # "The general rule was that Stanley used daylight saving and the Camp
       
  1438 # did not. However for various reasons many people in the Camp have
       
  1439 # started to use daylight saving (known locally as 'Stanley Time')
       
  1440 # There is no rule as to who uses daylight saving - it is a matter of
       
  1441 # personal choice and so it is impossible to draw a map showing who
       
  1442 # uses it and who does not. Any list would be out of date as soon as
       
  1443 # it was produced. This year daylight saving ended on April 18/19th
       
  1444 # and started again on September 12/13th.  I do not know what the rule
       
  1445 # is, but can find out if you like.  We do not change at the same time
       
  1446 # as UK or Chile."
       
  1447 #
       
  1448 # I did have in my notes that the rule was "Second Saturday in Sep at
       
  1449 # 0:00 until third Saturday in Apr at 0:00".  I think that this does
       
  1450 # not agree in some cases with Shanks; is this true?
       
  1451 #
       
  1452 # Also, there is no mention in the list that some areas in the
       
  1453 # Falklands do not use DST.  I have found in my communications there
       
  1454 # that these areas are on the western half of East Falkland and all of
       
  1455 # West Falkland.  Stanley is the only place that consistently observes
       
  1456 # DST.  Again, as in other places in the world, the farmers don't like
       
  1457 # it.  West Falkland is almost entirely sheep farmers.
       
  1458 #
       
  1459 # I know one lady there that keeps a list of which farm keeps DST and
       
  1460 # which doesn't each year.  She runs a shop in Stanley, and says that
       
  1461 # the list changes each year.  She uses it to communicate to her
       
  1462 # customers, catching them when they are home for lunch or dinner.
       
  1463 
       
  1464 # From Paul Eggert (2001-03-05):
       
  1465 # For now, we'll just record the time in Stanley, since we have no
       
  1466 # better info.
       
  1467 
       
  1468 # From Steffen Thorsen (2011-04-01):
       
  1469 # The Falkland Islands will not turn back clocks this winter, but stay on
       
  1470 # daylight saving time.
       
  1471 #
       
  1472 # One source:
       
  1473 # <a href="http://www.falklandnews.com/public/story.cfm?get=5914&source=3">
       
  1474 # http://www.falklandnews.com/public/story.cfm?get=5914&source=3
       
  1475 # </a>
       
  1476 #
       
  1477 # We have gotten this confirmed by a clerk of the legislative assembly:
       
  1478 # Normally the clocks revert to Local Mean Time (UTC/GMT -4 hours) on the
       
  1479 # third Sunday of April at 0200hrs and advance to Summer Time (UTC/GMT -3
       
  1480 # hours) on the first Sunday of September at 0200hrs.
       
  1481 #
       
  1482 # IMPORTANT NOTE: During 2011, on a trial basis, the Falkland Islands
       
  1483 # will not revert to local mean time, but clocks will remain on Summer
       
  1484 # time (UTC/GMT - 3 hours) throughout the whole of 2011.  Any long term
       
  1485 # change to local time following the trial period will be notified.
       
  1486 #
       
  1487 # From Andrew Newman (2012-02-24)
       
  1488 # A letter from Justin McPhee, Chief Executive,
       
  1489 # Cable & Wireless Falkland Islands (dated 2012-02-22)
       
  1490 # states...
       
  1491 #   The current Atlantic/Stanley entry under South America expects the
       
  1492 #   clocks to go back to standard Falklands Time (FKT) on the 15th April.
       
  1493 #   The database entry states that in 2011 Stanley was staying on fixed
       
  1494 #   summer time on a trial basis only.  FIG need to contact IANA and/or
       
  1495 #   the maintainers of the database to inform them we're adopting
       
  1496 #   the same policy this year and suggest recommendations for future years.
       
  1497 #
       
  1498 # For now we will assume permanent summer time for the Falklands
       
  1499 # until advised differently (to apply for 2012 and beyond, after the 2011
       
  1500 # experiment was apparently successful.)
       
  1501 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
       
  1502 Rule	Falk	1937	1938	-	Sep	lastSun	0:00	1:00	S
       
  1503 Rule	Falk	1938	1942	-	Mar	Sun>=19	0:00	0	-
       
  1504 Rule	Falk	1939	only	-	Oct	1	0:00	1:00	S
       
  1505 Rule	Falk	1940	1942	-	Sep	lastSun	0:00	1:00	S
       
  1506 Rule	Falk	1943	only	-	Jan	1	0:00	0	-
       
  1507 Rule	Falk	1983	only	-	Sep	lastSun	0:00	1:00	S
       
  1508 Rule	Falk	1984	1985	-	Apr	lastSun	0:00	0	-
       
  1509 Rule	Falk	1984	only	-	Sep	16	0:00	1:00	S
       
  1510 Rule	Falk	1985	2000	-	Sep	Sun>=9	0:00	1:00	S
       
  1511 Rule	Falk	1986	2000	-	Apr	Sun>=16	0:00	0	-
       
  1512 Rule	Falk	2001	2010	-	Apr	Sun>=15	2:00	0	-
       
  1513 Rule	Falk	2001	2010	-	Sep	Sun>=1	2:00	1:00	S
       
  1514 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1515 Zone Atlantic/Stanley	-3:51:24 -	LMT	1890
       
  1516 			-3:51:24 -	SMT	1912 Mar 12  # Stanley Mean Time
       
  1517 			-4:00	Falk	FK%sT	1983 May     # Falkland Is Time
       
  1518 			-3:00	Falk	FK%sT	1985 Sep 15
       
  1519 			-4:00	Falk	FK%sT	2010 Sep 5 02:00
       
  1520 			-3:00	-	FKST
       
  1521 
       
  1522 # French Guiana
       
  1523 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1524 Zone America/Cayenne	-3:29:20 -	LMT	1911 Jul
       
  1525 			-4:00	-	GFT	1967 Oct # French Guiana Time
       
  1526 			-3:00	-	GFT
       
  1527 
       
  1528 # Guyana
       
  1529 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1530 Zone	America/Guyana	-3:52:40 -	LMT	1915 Mar	# Georgetown
       
  1531 			-3:45	-	GBGT	1966 May 26 # Br Guiana Time
       
  1532 			-3:45	-	GYT	1975 Jul 31 # Guyana Time
       
  1533 			-3:00	-	GYT	1991
       
  1534 # IATA SSIM (1996-06) says -4:00.  Assume a 1991 switch.
       
  1535 			-4:00	-	GYT
       
  1536 
       
  1537 # Paraguay
       
  1538 #
       
  1539 # From Paul Eggert (2006-03-22):
       
  1540 # Shanks & Pottenger say that spring transitions are from 01:00 -> 02:00,
       
  1541 # and autumn transitions are from 00:00 -> 23:00.  Go with pre-1999
       
  1542 # editions of Shanks, and with the IATA, who say transitions occur at 00:00.
       
  1543 #
       
  1544 # From Waldemar Villamayor-Venialbo (2013-09-20):
       
  1545 # No time of the day is established for the adjustment, so people normally
       
  1546 # adjust their clocks at 0 hour of the given dates.
       
  1547 #
       
  1548 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
       
  1549 Rule	Para	1975	1988	-	Oct	 1	0:00	1:00	S
       
  1550 Rule	Para	1975	1978	-	Mar	 1	0:00	0	-
       
  1551 Rule	Para	1979	1991	-	Apr	 1	0:00	0	-
       
  1552 Rule	Para	1989	only	-	Oct	22	0:00	1:00	S
       
  1553 Rule	Para	1990	only	-	Oct	 1	0:00	1:00	S
       
  1554 Rule	Para	1991	only	-	Oct	 6	0:00	1:00	S
       
  1555 Rule	Para	1992	only	-	Mar	 1	0:00	0	-
       
  1556 Rule	Para	1992	only	-	Oct	 5	0:00	1:00	S
       
  1557 Rule	Para	1993	only	-	Mar	31	0:00	0	-
       
  1558 Rule	Para	1993	1995	-	Oct	 1	0:00	1:00	S
       
  1559 Rule	Para	1994	1995	-	Feb	lastSun	0:00	0	-
       
  1560 Rule	Para	1996	only	-	Mar	 1	0:00	0	-
       
  1561 # IATA SSIM (2000-02) says 1999-10-10; ignore this for now.
       
  1562 # From Steffen Thorsen (2000-10-02):
       
  1563 # I have three independent reports that Paraguay changed to DST this Sunday
       
  1564 # (10-01).
       
  1565 #
       
  1566 # Translated by Gwillim Law (2001-02-27) from
       
  1567 # <a href="http://www.diarionoticias.com.py/011000/nacional/naciona1.htm">
       
  1568 # Noticias, a daily paper in Asuncion, Paraguay (2000-10-01)
       
  1569 # </a>:
       
  1570 # Starting at 0:00 today, the clock will be set forward 60 minutes, in
       
  1571 # fulfillment of Decree No. 7,273 of the Executive Power....  The time change
       
  1572 # system has been operating for several years.  Formerly there was a separate
       
  1573 # decree each year; the new law has the same effect, but permanently.  Every
       
  1574 # year, the time will change on the first Sunday of October; likewise, the
       
  1575 # clock will be set back on the first Sunday of March.
       
  1576 #
       
  1577 Rule	Para	1996	2001	-	Oct	Sun>=1	0:00	1:00	S
       
  1578 # IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger.
       
  1579 Rule	Para	1997	only	-	Feb	lastSun	0:00	0	-
       
  1580 # Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but
       
  1581 # (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27).
       
  1582 Rule	Para	1998	2001	-	Mar	Sun>=1	0:00	0	-
       
  1583 # From Rives McDow (2002-02-28):
       
  1584 # A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the
       
  1585 # dst method to be from the first Sunday in September to the first Sunday in
       
  1586 # April.
       
  1587 Rule	Para	2002	2004	-	Apr	Sun>=1	0:00	0	-
       
  1588 Rule	Para	2002	2003	-	Sep	Sun>=1	0:00	1:00	S
       
  1589 #
       
  1590 # From Jesper Norgaard Welen (2005-01-02):
       
  1591 # There are several sources that claim that Paraguay made
       
  1592 # a timezone rule change in autumn 2004.
       
  1593 # From Steffen Thorsen (2005-01-05):
       
  1594 # Decree 1,867 (2004-03-05)
       
  1595 # From Carlos Raul Perasso via Jesper Norgaard Welen (2006-10-13)
       
  1596 # <http://www.presidencia.gov.py/decretos/D1867.pdf>
       
  1597 Rule	Para	2004	2009	-	Oct	Sun>=15	0:00	1:00	S
       
  1598 Rule	Para	2005	2009	-	Mar	Sun>=8	0:00	0	-
       
  1599 # From Carlos Raul Perasso (2010-02-18):
       
  1600 # By decree number 3958 issued yesterday (
       
  1601 # <a href="http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf">
       
  1602 # http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf
       
  1603 # </a>
       
  1604 # )
       
  1605 # Paraguay changes its DST schedule, postponing the March rule to April and
       
  1606 # modifying the October date. The decree reads:
       
  1607 # ...
       
  1608 # Art. 1. It is hereby established that from the second Sunday of the month of
       
  1609 # April of this year (2010), the official time is to be set back 60 minutes,
       
  1610 # and that on the first Sunday of the month of October, it is to be set
       
  1611 # forward 60 minutes, in all the territory of the Paraguayan Republic.
       
  1612 # ...
       
  1613 Rule	Para	2010	max	-	Oct	Sun>=1	0:00	1:00	S
       
  1614 Rule	Para	2010	2012	-	Apr	Sun>=8	0:00	0	-
       
  1615 #
       
  1616 # From Steffen Thorsen (2013-03-07):
       
  1617 # Paraguay will end DST on 2013-03-24 00:00....
       
  1618 # http://www.ande.gov.py/interna.php?id=1075
       
  1619 #
       
  1620 # From Carlos Raul Perasso (2013-03-15):
       
  1621 # The change in Paraguay is now final.  Decree number 10780
       
  1622 # http://www.presidencia.gov.py/uploads/pdf/presidencia-3b86ff4b691c79d4f5927ca964922ec74772ce857c02ca054a52a37b49afc7fb.pdf
       
  1623 Rule	Para	2013	max	-	Mar	Sun>=22	0:00	0	-
       
  1624 
       
  1625 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1626 Zone America/Asuncion	-3:50:40 -	LMT	1890
       
  1627 			-3:50:40 -	AMT	1931 Oct 10 # Asuncion Mean Time
       
  1628 			-4:00	-	PYT	1972 Oct # Paraguay Time
       
  1629 			-3:00	-	PYT	1974 Apr
       
  1630 			-4:00	Para	PY%sT
       
  1631 
       
  1632 # Peru
       
  1633 #
       
  1634 # <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net">
       
  1635 # From Evelyn C. Leeper via Mark Brader (2003-10-26):</a>
       
  1636 # When we were in Peru in 1985-1986, they apparently switched over
       
  1637 # sometime between December 29 and January 3 while we were on the Amazon.
       
  1638 #
       
  1639 # From Paul Eggert (2006-03-22):
       
  1640 # Shanks & Pottenger don't have this transition.  Assume 1986 was like 1987.
       
  1641 
       
  1642 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
       
  1643 Rule	Peru	1938	only	-	Jan	 1	0:00	1:00	S
       
  1644 Rule	Peru	1938	only	-	Apr	 1	0:00	0	-
       
  1645 Rule	Peru	1938	1939	-	Sep	lastSun	0:00	1:00	S
       
  1646 Rule	Peru	1939	1940	-	Mar	Sun>=24	0:00	0	-
       
  1647 Rule	Peru	1986	1987	-	Jan	 1	0:00	1:00	S
       
  1648 Rule	Peru	1986	1987	-	Apr	 1	0:00	0	-
       
  1649 Rule	Peru	1990	only	-	Jan	 1	0:00	1:00	S
       
  1650 Rule	Peru	1990	only	-	Apr	 1	0:00	0	-
       
  1651 # IATA is ambiguous for 1993/1995; go with Shanks & Pottenger.
       
  1652 Rule	Peru	1994	only	-	Jan	 1	0:00	1:00	S
       
  1653 Rule	Peru	1994	only	-	Apr	 1	0:00	0	-
       
  1654 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1655 Zone	America/Lima	-5:08:12 -	LMT	1890
       
  1656 			-5:08:36 -	LMT	1908 Jul 28 # Lima Mean Time?
       
  1657 			-5:00	Peru	PE%sT	# Peru Time
       
  1658 
       
  1659 # South Georgia
       
  1660 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1661 Zone Atlantic/South_Georgia -2:26:08 -	LMT	1890		# Grytviken
       
  1662 			-2:00	-	GST	# South Georgia Time
       
  1663 
       
  1664 # South Sandwich Is
       
  1665 # uninhabited; scientific personnel have wintered
       
  1666 
       
  1667 # Suriname
       
  1668 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1669 Zone America/Paramaribo	-3:40:40 -	LMT	1911
       
  1670 			-3:40:52 -	PMT	1935     # Paramaribo Mean Time
       
  1671 			-3:40:36 -	PMT	1945 Oct # The capital moved?
       
  1672 			-3:30	-	NEGT	1975 Nov 20 # Dutch Guiana Time
       
  1673 			-3:30	-	SRT	1984 Oct # Suriname Time
       
  1674 			-3:00	-	SRT
       
  1675 
       
  1676 # Trinidad and Tobago
       
  1677 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1678 Zone America/Port_of_Spain -4:06:04 -	LMT	1912 Mar 2
       
  1679 			-4:00	-	AST
       
  1680 
       
  1681 Link America/Port_of_Spain America/Anguilla
       
  1682 Link America/Port_of_Spain America/Dominica
       
  1683 Link America/Port_of_Spain America/Grenada
       
  1684 Link America/Port_of_Spain America/Guadeloupe
       
  1685 Link America/Port_of_Spain America/Marigot
       
  1686 Link America/Port_of_Spain America/Montserrat
       
  1687 Link America/Port_of_Spain America/St_Barthelemy
       
  1688 Link America/Port_of_Spain America/St_Kitts
       
  1689 Link America/Port_of_Spain America/St_Lucia
       
  1690 Link America/Port_of_Spain America/St_Thomas
       
  1691 Link America/Port_of_Spain America/St_Vincent
       
  1692 Link America/Port_of_Spain America/Tortola
       
  1693 
       
  1694 # Uruguay
       
  1695 # From Paul Eggert (1993-11-18):
       
  1696 # Uruguay wins the prize for the strangest peacetime manipulation of the rules.
       
  1697 # From Shanks & Pottenger:
       
  1698 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
       
  1699 # Whitman gives 1923 Oct 1; go with Shanks & Pottenger.
       
  1700 Rule	Uruguay	1923	only	-	Oct	 2	 0:00	0:30	HS
       
  1701 Rule	Uruguay	1924	1926	-	Apr	 1	 0:00	0	-
       
  1702 Rule	Uruguay	1924	1925	-	Oct	 1	 0:00	0:30	HS
       
  1703 Rule	Uruguay	1933	1935	-	Oct	lastSun	 0:00	0:30	HS
       
  1704 # Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman.
       
  1705 Rule	Uruguay	1934	1936	-	Mar	Sat>=25	23:30s	0	-
       
  1706 Rule	Uruguay	1936	only	-	Nov	 1	 0:00	0:30	HS
       
  1707 Rule	Uruguay	1937	1941	-	Mar	lastSun	 0:00	0	-
       
  1708 # Whitman gives 1937 Oct 3; go with Shanks & Pottenger.
       
  1709 Rule	Uruguay	1937	1940	-	Oct	lastSun	 0:00	0:30	HS
       
  1710 # Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13,
       
  1711 # and 1943 Apr 13 "to present time"; go with Shanks & Pottenger.
       
  1712 Rule	Uruguay	1941	only	-	Aug	 1	 0:00	0:30	HS
       
  1713 Rule	Uruguay	1942	only	-	Jan	 1	 0:00	0	-
       
  1714 Rule	Uruguay	1942	only	-	Dec	14	 0:00	1:00	S
       
  1715 Rule	Uruguay	1943	only	-	Mar	14	 0:00	0	-
       
  1716 Rule	Uruguay	1959	only	-	May	24	 0:00	1:00	S
       
  1717 Rule	Uruguay	1959	only	-	Nov	15	 0:00	0	-
       
  1718 Rule	Uruguay	1960	only	-	Jan	17	 0:00	1:00	S
       
  1719 Rule	Uruguay	1960	only	-	Mar	 6	 0:00	0	-
       
  1720 Rule	Uruguay	1965	1967	-	Apr	Sun>=1	 0:00	1:00	S
       
  1721 Rule	Uruguay	1965	only	-	Sep	26	 0:00	0	-
       
  1722 Rule	Uruguay	1966	1967	-	Oct	31	 0:00	0	-
       
  1723 Rule	Uruguay	1968	1970	-	May	27	 0:00	0:30	HS
       
  1724 Rule	Uruguay	1968	1970	-	Dec	 2	 0:00	0	-
       
  1725 Rule	Uruguay	1972	only	-	Apr	24	 0:00	1:00	S
       
  1726 Rule	Uruguay	1972	only	-	Aug	15	 0:00	0	-
       
  1727 Rule	Uruguay	1974	only	-	Mar	10	 0:00	0:30	HS
       
  1728 Rule	Uruguay	1974	only	-	Dec	22	 0:00	1:00	S
       
  1729 Rule	Uruguay	1976	only	-	Oct	 1	 0:00	0	-
       
  1730 Rule	Uruguay	1977	only	-	Dec	 4	 0:00	1:00	S
       
  1731 Rule	Uruguay	1978	only	-	Apr	 1	 0:00	0	-
       
  1732 Rule	Uruguay	1979	only	-	Oct	 1	 0:00	1:00	S
       
  1733 Rule	Uruguay	1980	only	-	May	 1	 0:00	0	-
       
  1734 Rule	Uruguay	1987	only	-	Dec	14	 0:00	1:00	S
       
  1735 Rule	Uruguay	1988	only	-	Mar	14	 0:00	0	-
       
  1736 Rule	Uruguay	1988	only	-	Dec	11	 0:00	1:00	S
       
  1737 Rule	Uruguay	1989	only	-	Mar	12	 0:00	0	-
       
  1738 Rule	Uruguay	1989	only	-	Oct	29	 0:00	1:00	S
       
  1739 # Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2,
       
  1740 # and that 1992/3's DST was from 10-25 to 03-01.  Go with IATA.
       
  1741 Rule	Uruguay	1990	1992	-	Mar	Sun>=1	 0:00	0	-
       
  1742 Rule	Uruguay	1990	1991	-	Oct	Sun>=21	 0:00	1:00	S
       
  1743 Rule	Uruguay	1992	only	-	Oct	18	 0:00	1:00	S
       
  1744 Rule	Uruguay	1993	only	-	Feb	28	 0:00	0	-
       
  1745 # From Eduardo Cota (2004-09-20):
       
  1746 # The uruguayan government has decreed a change in the local time....
       
  1747 # http://www.presidencia.gub.uy/decretos/2004091502.htm
       
  1748 Rule	Uruguay	2004	only	-	Sep	19	 0:00	1:00	S
       
  1749 # From Steffen Thorsen (2005-03-11):
       
  1750 # Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to
       
  1751 # save energy ... it was postponed two weeks....
       
  1752 # http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm
       
  1753 Rule	Uruguay	2005	only	-	Mar	27	 2:00	0	-
       
  1754 # From Eduardo Cota (2005-09-27):
       
  1755 # http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF
       
  1756 # This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at
       
  1757 # 02:00 local time, official time in Uruguay will be at GMT -2.
       
  1758 Rule	Uruguay	2005	only	-	Oct	 9	 2:00	1:00	S
       
  1759 Rule	Uruguay	2006	only	-	Mar	12	 2:00	0	-
       
  1760 # From Jesper Norgaard Welen (2006-09-06):
       
  1761 # http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF
       
  1762 Rule	Uruguay	2006	max	-	Oct	Sun>=1	 2:00	1:00	S
       
  1763 Rule	Uruguay	2007	max	-	Mar	Sun>=8	 2:00	0	-
       
  1764 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1765 Zone America/Montevideo	-3:44:44 -	LMT	1898 Jun 28
       
  1766 			-3:44:44 -	MMT	1920 May  1	# Montevideo MT
       
  1767 			-3:30	Uruguay	UY%sT	1942 Dec 14	# Uruguay Time
       
  1768 			-3:00	Uruguay	UY%sT
       
  1769 
       
  1770 # Venezuela
       
  1771 #
       
  1772 # From John Stainforth (2007-11-28):
       
  1773 # ... the change for Venezuela originally expected for 2007-12-31 has
       
  1774 # been brought forward to 2007-12-09.  The official announcement was
       
  1775 # published today in the "Gaceta Oficial de la Republica Bolivariana
       
  1776 # de Venezuela, numero 38.819" (official document for all laws or
       
  1777 # resolution publication)
       
  1778 # http://www.globovision.com/news.php?nid=72208
       
  1779 
       
  1780 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
       
  1781 Zone	America/Caracas	-4:27:44 -	LMT	1890
       
  1782 			-4:27:40 -	CMT	1912 Feb 12 # Caracas Mean Time?
       
  1783 			-4:30	-	VET	1965	     # Venezuela Time
       
  1784 			-4:00	-	VET	2007 Dec  9 03:00
       
  1785 			-4:30	-	VET