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80 lines
2.9 KiB
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80 lines
2.9 KiB
Plaintext
# tzdb data for ships at sea and other miscellany
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# This file is in the public domain, so clarified as of
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# 2009-05-17 by Arthur David Olson.
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# These entries are for uses not otherwise covered by the tz database.
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# Their main practical use is for platforms like Android that lack
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# support for POSIX-style TZ strings. On such platforms these entries
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# can be useful if the timezone database is wrong or if a ship or
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# aircraft at sea is not in a timezone.
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# Starting with POSIX 1003.1-2001, the entries below are all
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# unnecessary as settings for the TZ environment variable. E.g.,
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# instead of TZ='Etc/GMT+4' one can use the POSIX setting TZ='<-04>+4'.
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#
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# Do not use a POSIX TZ setting like TZ='GMT+4', which is four hours
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# behind GMT but uses the completely misleading abbreviation "GMT".
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# The following zone is used by tzcode functions like gmtime,
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# which load the "UTC" file to handle seconds properly.
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Zone Etc/UTC 0 - UTC
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# Functions like gmtime load the "GMT" file to handle leap seconds properly.
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# Vanguard section, which works with most .zi parsers.
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#Zone GMT 0 - GMT
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# Rearguard section, for TZUpdater 2.3.2 and earlier.
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Zone Etc/GMT 0 - GMT
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# The following link uses older naming conventions,
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# but it belongs here, not in the file 'backward',
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# as it is needed for tzcode releases through 2022a,
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# where functions like gmtime load "GMT" instead of the "Etc/UTC".
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# We want this to work even on installations that omit 'backward'.
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Link Etc/GMT GMT
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# End of rearguard section.
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# Be consistent with POSIX TZ settings in the Zone names,
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# even though this is the opposite of what many people expect.
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# POSIX has positive signs west of Greenwich, but many people expect
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# positive signs east of Greenwich. For example, TZ='Etc/GMT+4' uses
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# the abbreviation "-04" and corresponds to 4 hours behind UT
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# (i.e. west of Greenwich) even though many people would expect it to
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# mean 4 hours ahead of UT (i.e. east of Greenwich).
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# Earlier incarnations of this package were not POSIX-compliant,
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# and had lines such as
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# Zone GMT-12 -12 - GMT-1200
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# We did not want things to change quietly if someone accustomed to the old
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# way does a
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# zic -l GMT-12
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# so we moved the names into the Etc subdirectory.
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# Also, the time zone abbreviations are now compatible with %z.
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Zone Etc/GMT-14 14 - +14
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Zone Etc/GMT-13 13 - +13
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Zone Etc/GMT-12 12 - +12
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Zone Etc/GMT-11 11 - +11
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Zone Etc/GMT-10 10 - +10
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Zone Etc/GMT-9 9 - +09
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Zone Etc/GMT-8 8 - +08
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Zone Etc/GMT-7 7 - +07
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Zone Etc/GMT-6 6 - +06
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Zone Etc/GMT-5 5 - +05
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Zone Etc/GMT-4 4 - +04
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Zone Etc/GMT-3 3 - +03
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Zone Etc/GMT-2 2 - +02
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Zone Etc/GMT-1 1 - +01
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Zone Etc/GMT+1 -1 - -01
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Zone Etc/GMT+2 -2 - -02
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Zone Etc/GMT+3 -3 - -03
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Zone Etc/GMT+4 -4 - -04
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Zone Etc/GMT+5 -5 - -05
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Zone Etc/GMT+6 -6 - -06
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Zone Etc/GMT+7 -7 - -07
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Zone Etc/GMT+8 -8 - -08
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Zone Etc/GMT+9 -9 - -09
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Zone Etc/GMT+10 -10 - -10
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Zone Etc/GMT+11 -11 - -11
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Zone Etc/GMT+12 -12 - -12
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