189abb9f8SPhilip Paeps# tzdb data for ships at sea and other miscellany 289abb9f8SPhilip Paeps 31315084cSEdwin Groothuis# This file is in the public domain, so clarified as of 41315084cSEdwin Groothuis# 2009-05-17 by Arthur David Olson. 51315084cSEdwin Groothuis 6dc505d53SPhilip Paeps# These entries are for uses not otherwise covered by the tz database. 7dc505d53SPhilip Paeps# Their main practical use is for platforms like Android that lack 82723c7ffSPhilip Paeps# support for POSIX.1-2017-style TZ strings. On such platforms these entries 9dc505d53SPhilip Paeps# can be useful if the timezone database is wrong or if a ship or 10dc505d53SPhilip Paeps# aircraft at sea is not in a timezone. 111315084cSEdwin Groothuis 128fdf5721SBaptiste Daroussin# Starting with POSIX 1003.1-2001, the entries below are all 138fdf5721SBaptiste Daroussin# unnecessary as settings for the TZ environment variable. E.g., 148fdf5721SBaptiste Daroussin# instead of TZ='Etc/GMT+4' one can use the POSIX setting TZ='<-04>+4'. 158fdf5721SBaptiste Daroussin# 168fdf5721SBaptiste Daroussin# Do not use a POSIX TZ setting like TZ='GMT+4', which is four hours 178fdf5721SBaptiste Daroussin# behind GMT but uses the completely misleading abbreviation "GMT". 188fdf5721SBaptiste Daroussin 199f9fc6bbSPhilip Paeps# The following zone is used by tzcode functions like gmtime, 209f9fc6bbSPhilip Paeps# which load the "UTC" file to handle seconds properly. 211315084cSEdwin GroothuisZone Etc/UTC 0 - UTC 221315084cSEdwin Groothuis 239142a2a3SPhilip Paeps# Functions like gmtime load the "GMT" file to handle leap seconds properly. 249142a2a3SPhilip Paeps# Vanguard section, which works with most .zi parsers. 259142a2a3SPhilip Paeps#Zone GMT 0 - GMT 269142a2a3SPhilip Paeps# Rearguard section, for TZUpdater 2.3.2 and earlier. 279142a2a3SPhilip PaepsZone Etc/GMT 0 - GMT 289142a2a3SPhilip Paeps 291315084cSEdwin Groothuis# The following link uses older naming conventions, 30eb1c1a05SSergey Kandaurov# but it belongs here, not in the file 'backward', 319f9fc6bbSPhilip Paeps# as it is needed for tzcode releases through 2022a, 329f9fc6bbSPhilip Paeps# where functions like gmtime load "GMT" instead of the "Etc/UTC". 339f9fc6bbSPhilip Paeps# We want this to work even on installations that omit 'backward'. 349f9fc6bbSPhilip PaepsLink Etc/GMT GMT 359142a2a3SPhilip Paeps# End of rearguard section. 361315084cSEdwin Groothuis 378fdf5721SBaptiste Daroussin# Be consistent with POSIX TZ settings in the Zone names, 381315084cSEdwin Groothuis# even though this is the opposite of what many people expect. 391315084cSEdwin Groothuis# POSIX has positive signs west of Greenwich, but many people expect 401315084cSEdwin Groothuis# positive signs east of Greenwich. For example, TZ='Etc/GMT+4' uses 418fdf5721SBaptiste Daroussin# the abbreviation "-04" and corresponds to 4 hours behind UT 421315084cSEdwin Groothuis# (i.e. west of Greenwich) even though many people would expect it to 43c26a5802SEdwin Groothuis# mean 4 hours ahead of UT (i.e. east of Greenwich). 441315084cSEdwin Groothuis 451315084cSEdwin Groothuis# Earlier incarnations of this package were not POSIX-compliant, 461315084cSEdwin Groothuis# and had lines such as 471315084cSEdwin Groothuis# Zone GMT-12 -12 - GMT-1200 481315084cSEdwin Groothuis# We did not want things to change quietly if someone accustomed to the old 491315084cSEdwin Groothuis# way does a 501315084cSEdwin Groothuis# zic -l GMT-12 511315084cSEdwin Groothuis# so we moved the names into the Etc subdirectory. 528fdf5721SBaptiste Daroussin# Also, the time zone abbreviations are now compatible with %z. 531315084cSEdwin Groothuis 548fdf5721SBaptiste DaroussinZone Etc/GMT-14 14 - +14 558fdf5721SBaptiste DaroussinZone Etc/GMT-13 13 - +13 568fdf5721SBaptiste DaroussinZone Etc/GMT-12 12 - +12 578fdf5721SBaptiste DaroussinZone Etc/GMT-11 11 - +11 588fdf5721SBaptiste DaroussinZone Etc/GMT-10 10 - +10 598fdf5721SBaptiste DaroussinZone Etc/GMT-9 9 - +09 608fdf5721SBaptiste DaroussinZone Etc/GMT-8 8 - +08 618fdf5721SBaptiste DaroussinZone Etc/GMT-7 7 - +07 628fdf5721SBaptiste DaroussinZone Etc/GMT-6 6 - +06 638fdf5721SBaptiste DaroussinZone Etc/GMT-5 5 - +05 648fdf5721SBaptiste DaroussinZone Etc/GMT-4 4 - +04 658fdf5721SBaptiste DaroussinZone Etc/GMT-3 3 - +03 668fdf5721SBaptiste DaroussinZone Etc/GMT-2 2 - +02 678fdf5721SBaptiste DaroussinZone Etc/GMT-1 1 - +01 688fdf5721SBaptiste DaroussinZone Etc/GMT+1 -1 - -01 698fdf5721SBaptiste DaroussinZone Etc/GMT+2 -2 - -02 708fdf5721SBaptiste DaroussinZone Etc/GMT+3 -3 - -03 718fdf5721SBaptiste DaroussinZone Etc/GMT+4 -4 - -04 728fdf5721SBaptiste DaroussinZone Etc/GMT+5 -5 - -05 738fdf5721SBaptiste DaroussinZone Etc/GMT+6 -6 - -06 748fdf5721SBaptiste DaroussinZone Etc/GMT+7 -7 - -07 758fdf5721SBaptiste DaroussinZone Etc/GMT+8 -8 - -08 768fdf5721SBaptiste DaroussinZone Etc/GMT+9 -9 - -09 778fdf5721SBaptiste DaroussinZone Etc/GMT+10 -10 - -10 788fdf5721SBaptiste DaroussinZone Etc/GMT+11 -11 - -11 798fdf5721SBaptiste DaroussinZone Etc/GMT+12 -12 - -12 80