1 # tzdb data for ships at sea and other miscellany
3 # This file is in the public domain, so clarified as of
4 # 2009-05-17 by Arthur David Olson.
6 # These entries are for uses not otherwise covered by the tz database.
7 # Their main practical use is for platforms like Android that lack
8 # support for POSIX-style TZ strings. On such platforms these entries
9 # can be useful if the timezone database is wrong or if a ship or
10 # aircraft at sea is not in a timezone.
12 # Starting with POSIX 1003.1-2001, the entries below are all
13 # unnecessary as settings for the TZ environment variable. E.g.,
14 # instead of TZ='Etc/GMT+4' one can use the POSIX setting TZ='<-04>+4'.
16 # Do not use a POSIX TZ setting like TZ='GMT+4', which is four hours
17 # behind GMT but uses the completely misleading abbreviation "GMT".
19 # The following zone is used by tzcode functions like gmtime,
20 # which load the "UTC" file to handle seconds properly.
23 # Functions like gmtime load the "GMT" file to handle leap seconds properly.
24 # Vanguard section, which works with most .zi parsers.
26 # Rearguard section, for TZUpdater 2.3.2 and earlier.
29 # The following link uses older naming conventions,
30 # but it belongs here, not in the file 'backward',
31 # as it is needed for tzcode releases through 2022a,
32 # where functions like gmtime load "GMT" instead of the "Etc/UTC".
33 # We want this to work even on installations that omit 'backward'.
35 # End of rearguard section.
37 # Be consistent with POSIX TZ settings in the Zone names,
38 # even though this is the opposite of what many people expect.
39 # POSIX has positive signs west of Greenwich, but many people expect
40 # positive signs east of Greenwich. For example, TZ='Etc/GMT+4' uses
41 # the abbreviation "-04" and corresponds to 4 hours behind UT
42 # (i.e. west of Greenwich) even though many people would expect it to
43 # mean 4 hours ahead of UT (i.e. east of Greenwich).
45 # Earlier incarnations of this package were not POSIX-compliant,
46 # and had lines such as
47 # Zone GMT-12 -12 - GMT-1200
48 # We did not want things to change quietly if someone accustomed to the old
51 # so we moved the names into the Etc subdirectory.
52 # Also, the time zone abbreviations are now compatible with %z.
54 Zone Etc/GMT-14 14 - +14
55 Zone Etc/GMT-13 13 - +13
56 Zone Etc/GMT-12 12 - +12
57 Zone Etc/GMT-11 11 - +11
58 Zone Etc/GMT-10 10 - +10
59 Zone Etc/GMT-9 9 - +09
60 Zone Etc/GMT-8 8 - +08
61 Zone Etc/GMT-7 7 - +07
62 Zone Etc/GMT-6 6 - +06
63 Zone Etc/GMT-5 5 - +05
64 Zone Etc/GMT-4 4 - +04
65 Zone Etc/GMT-3 3 - +03
66 Zone Etc/GMT-2 2 - +02
67 Zone Etc/GMT-1 1 - +01
68 Zone Etc/GMT+1 -1 - -01
69 Zone Etc/GMT+2 -2 - -02
70 Zone Etc/GMT+3 -3 - -03
71 Zone Etc/GMT+4 -4 - -04
72 Zone Etc/GMT+5 -5 - -05
73 Zone Etc/GMT+6 -6 - -06
74 Zone Etc/GMT+7 -7 - -07
75 Zone Etc/GMT+8 -8 - -08
76 Zone Etc/GMT+9 -9 - -09
77 Zone Etc/GMT+10 -10 - -10
78 Zone Etc/GMT+11 -11 - -11
79 Zone Etc/GMT+12 -12 - -12