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