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      1 # tzdb data for ships at sea and other miscellany
      2 
      3 # This file is in the public domain, so clarified as of
      4 # 2009-05-17 by Arthur David Olson.
      5 
      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 proleptic 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.
     11 
     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'.
     15 #
     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".
     18 
     19 # The following zone is used by tzcode functions like gmtime,
     20 # which load the "UTC" file to handle seconds properly.
     21 Zone	Etc/UTC		0	-	UTC
     22 
     23 # If leap second support is enabled, functions like gmtime
     24 # load the "GMT" file to handle leap seconds properly.
     25 # Vanguard section, which works with most .zi parsers.
     26 #Zone	GMT		0	-	GMT
     27 # Rearguard section, for TZUpdater 2.3.2 and earlier.
     28 Zone	Etc/GMT		0	-	GMT
     29 
     30 # The following link uses older naming conventions,
     31 # but it belongs here, not in the file 'backward',
     32 # as it is needed for tzcode releases through 2022a,
     33 # where functions like gmtime load "GMT" instead of the "Etc/UTC".
     34 # We want this to work even on installations that omit 'backward'.
     35 Link	Etc/GMT				GMT
     36 # End of rearguard section.
     37 
     38 # Be consistent with POSIX TZ settings in the Zone names,
     39 # even though this is the opposite of what many people expect.
     40 # POSIX has positive signs west of Greenwich, but many people expect
     41 # positive signs east of Greenwich.  For example, TZ='Etc/GMT+4' uses
     42 # the abbreviation "-04" and corresponds to 4 hours behind UT
     43 # (i.e. west of Greenwich) even though many people would expect it to
     44 # mean 4 hours ahead of UT (i.e. east of Greenwich).
     45 
     46 # Earlier incarnations of this package were not POSIX-compliant,
     47 # and had lines such as
     48 #		Zone	GMT-12		-12	-	GMT-1200
     49 # We did not want things to change quietly if someone accustomed to the old
     50 # way does a
     51 #		zic -l GMT-12
     52 # so we moved the names into the Etc subdirectory.
     53 # Also, the time zone abbreviations are now compatible with %z.
     54 
     55 # There is no "Etc/Unknown" entry, as CLDR says that "Etc/Unknown"
     56 # corresponds to an unknown or invalid time zone, and things would get
     57 # confusing if Etc/Unknown were made valid here.
     58 
     59 Zone	Etc/GMT-14	14	-	%z
     60 Zone	Etc/GMT-13	13	-	%z
     61 Zone	Etc/GMT-12	12	-	%z
     62 Zone	Etc/GMT-11	11	-	%z
     63 Zone	Etc/GMT-10	10	-	%z
     64 Zone	Etc/GMT-9	9	-	%z
     65 Zone	Etc/GMT-8	8	-	%z
     66 Zone	Etc/GMT-7	7	-	%z
     67 Zone	Etc/GMT-6	6	-	%z
     68 Zone	Etc/GMT-5	5	-	%z
     69 Zone	Etc/GMT-4	4	-	%z
     70 Zone	Etc/GMT-3	3	-	%z
     71 Zone	Etc/GMT-2	2	-	%z
     72 Zone	Etc/GMT-1	1	-	%z
     73 Zone	Etc/GMT+1	-1	-	%z
     74 Zone	Etc/GMT+2	-2	-	%z
     75 Zone	Etc/GMT+3	-3	-	%z
     76 Zone	Etc/GMT+4	-4	-	%z
     77 Zone	Etc/GMT+5	-5	-	%z
     78 Zone	Etc/GMT+6	-6	-	%z
     79 Zone	Etc/GMT+7	-7	-	%z
     80 Zone	Etc/GMT+8	-8	-	%z
     81 Zone	Etc/GMT+9	-9	-	%z
     82 Zone	Etc/GMT+10	-10	-	%z
     83 Zone	Etc/GMT+11	-11	-	%z
     84 Zone	Etc/GMT+12	-12	-	%z
     85