818 # This file is by no means authoritative; if you think you know better, |
818 # This file is by no means authoritative; if you think you know better, |
819 # go ahead and edit the file (and please send any changes to |
819 # go ahead and edit the file (and please send any changes to |
820 # tz@iana.org for general use in the future). For more, please see |
820 # tz@iana.org for general use in the future). For more, please see |
821 # the file CONTRIBUTING in the tz distribution. |
821 # the file CONTRIBUTING in the tz distribution. |
822 |
822 |
823 # From Paul Eggert (2013-02-21): |
823 # From Paul Eggert (2014-10-31): |
824 # A good source for time zone historical data outside the U.S. is |
824 # |
|
825 # Unless otherwise specified, the source for data through 1990 is: |
825 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), |
826 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), |
826 # San Diego: ACS Publications, Inc. (2003). |
827 # San Diego: ACS Publications, Inc. (2003). |
|
828 # Unfortunately this book contains many errors and cites no sources. |
827 # |
829 # |
828 # Gwillim Law writes that a good source |
830 # Gwillim Law writes that a good source |
829 # for recent time zone data is the International Air Transport |
831 # for recent time zone data is the International Air Transport |
830 # Association's Standard Schedules Information Manual (IATA SSIM), |
832 # Association's Standard Schedules Information Manual (IATA SSIM), |
831 # published semiannually. Law sent in several helpful summaries |
833 # published semiannually. Law sent in several helpful summaries |
832 # of the IATA's data after 1990. |
834 # of the IATA's data after 1990. Except where otherwise noted, |
833 # |
835 # IATA SSIM is the source for entries after 1990. |
834 # Except where otherwise noted, Shanks & Pottenger is the source for |
|
835 # entries through 1990, and IATA SSIM is the source for entries afterwards. |
|
836 # |
836 # |
837 # Another source occasionally used is Edward W. Whitman, World Time Differences, |
837 # Another source occasionally used is Edward W. Whitman, World Time Differences, |
838 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which |
838 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which |
839 # I found in the UCLA library. |
839 # I found in the UCLA library. |
840 # |
840 # |