OpenGrok

1.2  kre # tzdb data for ships at sea and other miscellany
1.2  kre
1.1  apb # This file is in the public domain, so clarified as of
1.1  apb # 2009-05-17 by Arthur David Olson.
1.1  apb
1.2  kre # These entries are for uses not otherwise covered by the tz database.
1.2  kre # Their main practical use is for platforms like Android that lack
1.2  kre # support for POSIX proleptic TZ strings.  On such platforms these entries
1.2  kre # can be useful if the timezone database is wrong or if a ship or
1.2  kre # aircraft at sea is not in a timezone.
1.2  kre
1.2  kre # Starting with POSIX 1003.1-2001, the entries below are all
1.2  kre # unnecessary as settings for the TZ environment variable.  E.g.,
1.2  kre # instead of TZ='Etc/GMT+4' one can use the POSIX setting TZ='<-04>+4'.
1.2  kre #
1.2  kre # Do not use a POSIX TZ setting like TZ='GMT+4', which is four hours
1.2  kre # behind GMT but uses the completely misleading abbreviation "GMT".
1.1  apb
1.2  kre # The following zone is used by tzcode functions like gmtime,
1.2  kre # which load the "UTC" file to handle seconds properly.
1.2  kre Zone	Etc/UTC		0	-	UTC
1.2  kre
1.4  kre # If leap second support is enabled, functions like gmtime
1.4  kre # load the "GMT" file to handle leap seconds properly.
1.2  kre # Vanguard section, which works with most .zi parsers.
1.2  kre #Zone	GMT		0	-	GMT
1.2  kre # Rearguard section, for TZUpdater 2.3.2 and earlier.
1.1  apb Zone	Etc/GMT		0	-	GMT
1.1  apb
1.1  apb # The following link uses older naming conventions,
1.1  apb # but it belongs here, not in the file 'backward',
1.2  kre # as it is needed for tzcode releases through 2022a,
1.2  kre # where functions like gmtime load "GMT" instead of the "Etc/UTC".
1.2  kre # We want this to work even on installations that omit 'backward'.
1.1  apb Link	Etc/GMT				GMT
1.2  kre # End of rearguard section.
1.1  apb
1.2  kre # Be consistent with POSIX TZ settings in the Zone names,
1.1  apb # even though this is the opposite of what many people expect.
1.1  apb # POSIX has positive signs west of Greenwich, but many people expect
1.1  apb # positive signs east of Greenwich.  For example, TZ='Etc/GMT+4' uses
1.2  kre # the abbreviation "-04" and corresponds to 4 hours behind UT
1.1  apb # (i.e. west of Greenwich) even though many people would expect it to
1.1  apb # mean 4 hours ahead of UT (i.e. east of Greenwich).
1.1  apb
1.1  apb # Earlier incarnations of this package were not POSIX-compliant,
1.1  apb # and had lines such as
1.1  apb #		Zone	GMT-12		-12	-	GMT-1200
1.1  apb # We did not want things to change quietly if someone accustomed to the old
1.1  apb # way does a
1.1  apb #		zic -l GMT-12
1.1  apb # so we moved the names into the Etc subdirectory.
1.2  kre # Also, the time zone abbreviations are now compatible with %z.
1.1  apb
1.3  kre # There is no "Etc/Unknown" entry, as CLDR says that "Etc/Unknown"
1.3  kre # corresponds to an unknown or invalid time zone, and things would get
1.3  kre # confusing if Etc/Unknown were made valid here.
1.3  kre
1.2  kre Zone	Etc/GMT-14	14	-	%z
1.2  kre Zone	Etc/GMT-13	13	-	%z
1.2  kre Zone	Etc/GMT-12	12	-	%z
1.2  kre Zone	Etc/GMT-11	11	-	%z
1.2  kre Zone	Etc/GMT-10	10	-	%z
1.2  kre Zone	Etc/GMT-9	9	-	%z
1.2  kre Zone	Etc/GMT-8	8	-	%z
1.2  kre Zone	Etc/GMT-7	7	-	%z
1.2  kre Zone	Etc/GMT-6	6	-	%z
1.2  kre Zone	Etc/GMT-5	5	-	%z
1.2  kre Zone	Etc/GMT-4	4	-	%z
1.2  kre Zone	Etc/GMT-3	3	-	%z
1.2  kre Zone	Etc/GMT-2	2	-	%z
1.2  kre Zone	Etc/GMT-1	1	-	%z
1.2  kre Zone	Etc/GMT+1	-1	-	%z
1.2  kre Zone	Etc/GMT+2	-2	-	%z
1.2  kre Zone	Etc/GMT+3	-3	-	%z
1.2  kre Zone	Etc/GMT+4	-4	-	%z
1.2  kre Zone	Etc/GMT+5	-5	-	%z
1.2  kre Zone	Etc/GMT+6	-6	-	%z
1.2  kre Zone	Etc/GMT+7	-7	-	%z
1.2  kre Zone	Etc/GMT+8	-8	-	%z
1.2  kre Zone	Etc/GMT+9	-9	-	%z
1.2  kre Zone	Etc/GMT+10	-10	-	%z
1.2  kre Zone	Etc/GMT+11	-11	-	%z
1.2  kre Zone	Etc/GMT+12	-12	-	%z