1 # <pre>
   2 # This file is in the public domain, so clarified as of
   3 # 2009-05-17 by Arthur David Olson.
   4 
   5 # These entries are mostly present for historical reasons, so that
   6 # people in areas not otherwise covered by the tz files could "zic -l"
   7 # to a time zone that was right for their area.  These days, the
   8 # tz files cover almost all the inhabited world, and the only practical
   9 # need now for the entries that are not on UTC are for ships at sea
  10 # that cannot use POSIX TZ settings.
  11 
  12 Zone    Etc/GMT         0       -       GMT
  13 Zone    Etc/UTC         0       -       UTC
  14 Zone    Etc/UCT         0       -       UCT
  15 
  16 # The following link uses older naming conventions,
  17 # but it belongs here, not in the file `backward',
  18 # as functions like gmtime load the "GMT" file to handle leap seconds properly.
  19 # We want this to work even on installations that omit the other older names.
  20 Link    Etc/GMT                         GMT
  21 
  22 Link    Etc/UTC                         Etc/Universal
  23 Link    Etc/UTC                         Etc/Zulu
  24 
  25 Link    Etc/GMT                         Etc/Greenwich
  26 Link    Etc/GMT                         Etc/GMT-0
  27 Link    Etc/GMT                         Etc/GMT+0
  28 Link    Etc/GMT                         Etc/GMT0
  29 
  30 # We use POSIX-style signs in the Zone names and the output abbreviations,
  31 # even though this is the opposite of what many people expect.
  32 # POSIX has positive signs west of Greenwich, but many people expect
  33 # positive signs east of Greenwich.  For example, TZ='Etc/GMT+4' uses
  34 # the abbreviation "GMT+4" and corresponds to 4 hours behind UT
  35 # (i.e. west of Greenwich) even though many people would expect it to
  36 # mean 4 hours ahead of UT (i.e. east of Greenwich).
  37 #
  38 # In the draft 5 of POSIX 1003.1-200x, the angle bracket notation allows for
  39 # TZ='<GMT-4>+4'; if you want time zone abbreviations conforming to
  40 # ISO 8601 you can use TZ='<-0400>+4'.  Thus the commonly-expected
  41 # offset is kept within the angle bracket (and is used for display)
  42 # while the POSIX sign is kept outside the angle bracket (and is used
  43 # for calculation).
  44 #
  45 # Do not use a TZ setting like TZ='GMT+4', which is four hours behind
  46 # GMT but uses the completely misleading abbreviation "GMT".
  47 
  48 # Earlier incarnations of this package were not POSIX-compliant,
  49 # and had lines such as
  50 #               Zone    GMT-12          -12     -       GMT-1200
  51 # We did not want things to change quietly if someone accustomed to the old
  52 # way does a
  53 #               zic -l GMT-12
  54 # so we moved the names into the Etc subdirectory.
  55 
  56 Zone    Etc/GMT-14      14      -       GMT-14  # 14 hours ahead of GMT
  57 Zone    Etc/GMT-13      13      -       GMT-13
  58 Zone    Etc/GMT-12      12      -       GMT-12
  59 Zone    Etc/GMT-11      11      -       GMT-11
  60 Zone    Etc/GMT-10      10      -       GMT-10
  61 Zone    Etc/GMT-9       9       -       GMT-9
  62 Zone    Etc/GMT-8       8       -       GMT-8
  63 Zone    Etc/GMT-7       7       -       GMT-7
  64 Zone    Etc/GMT-6       6       -       GMT-6
  65 Zone    Etc/GMT-5       5       -       GMT-5
  66 Zone    Etc/GMT-4       4       -       GMT-4
  67 Zone    Etc/GMT-3       3       -       GMT-3
  68 Zone    Etc/GMT-2       2       -       GMT-2
  69 Zone    Etc/GMT-1       1       -       GMT-1
  70 Zone    Etc/GMT+1       -1      -       GMT+1
  71 Zone    Etc/GMT+2       -2      -       GMT+2
  72 Zone    Etc/GMT+3       -3      -       GMT+3
  73 Zone    Etc/GMT+4       -4      -       GMT+4
  74 Zone    Etc/GMT+5       -5      -       GMT+5
  75 Zone    Etc/GMT+6       -6      -       GMT+6
  76 Zone    Etc/GMT+7       -7      -       GMT+7
  77 Zone    Etc/GMT+8       -8      -       GMT+8
  78 Zone    Etc/GMT+9       -9      -       GMT+9
  79 Zone    Etc/GMT+10      -10     -       GMT+10
  80 Zone    Etc/GMT+11      -11     -       GMT+11
  81 Zone    Etc/GMT+12      -12     -       GMT+12