795 # This file is by no means authoritative; if you think you know better, |
795 # This file is by no means authoritative; if you think you know better, |
796 # go ahead and edit the file (and please send any changes to |
796 # go ahead and edit the file (and please send any changes to |
797 # [email protected] for general use in the future). For more, please see |
797 # [email protected] for general use in the future). For more, please see |
798 # the file CONTRIBUTING in the tz distribution. |
798 # the file CONTRIBUTING in the tz distribution. |
799 |
799 |
800 # From Paul Eggert (2013-02-21): |
800 # From Paul Eggert (2014-10-31): |
801 # A good source for time zone historical data outside the U.S. is |
801 # |
|
802 # Unless otherwise specified, the source for data through 1990 is: |
802 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), |
803 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), |
803 # San Diego: ACS Publications, Inc. (2003). |
804 # San Diego: ACS Publications, Inc. (2003). |
|
805 # Unfortunately this book contains many errors and cites no sources. |
804 # |
806 # |
805 # Gwillim Law writes that a good source |
807 # Gwillim Law writes that a good source |
806 # for recent time zone data is the International Air Transport |
808 # for recent time zone data is the International Air Transport |
807 # Association's Standard Schedules Information Manual (IATA SSIM), |
809 # Association's Standard Schedules Information Manual (IATA SSIM), |
808 # published semiannually. Law sent in several helpful summaries |
810 # published semiannually. Law sent in several helpful summaries |
809 # of the IATA's data after 1990. |
811 # of the IATA's data after 1990. Except where otherwise noted, |
810 # |
812 # IATA SSIM is the source for entries after 1990. |
811 # Except where otherwise noted, Shanks & Pottenger is the source for |
|
812 # entries through 1990, and IATA SSIM is the source for entries afterwards. |
|
813 # |
813 # |
814 # Another source occasionally used is Edward W. Whitman, World Time Differences, |
814 # Another source occasionally used is Edward W. Whitman, World Time Differences, |
815 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which |
815 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which |
816 # I found in the UCLA library. |
816 # I found in the UCLA library. |
817 # |
817 # |