timezone/etcetera

   1 # @(#)etcetera  7.12
   2
   3 # These entries are mostly present for historical reasons, so that
   4 # people in areas not otherwise covered by the tz files could "zic -l"
   5 # to a time zone that was right for their area.  These days, the
   6 # tz files cover almost all the inhabited world, and the only practical
   7 # need now for the entries that are not on UTC are for ships at sea
   8 # that cannot use POSIX TZ settings.
   9
  10 Zone    Etc/GMT         0       -       GMT
  11 Zone    Etc/UTC         0       -       UTC
  12 Zone    Etc/UCT         0       -       UCT
  13
  14 # The following link uses older naming conventions,
  15 # but it belongs here, not in the file `backward',
  16 # as functions like gmtime load the "GMT" file to handle leap seconds properly.
  17 # We want this to work even on installations that omit the other older names.
  18 Link    Etc/GMT                         GMT
  19
  20 Link    Etc/UTC                         Etc/Universal
  21 Link    Etc/UTC                         Etc/Zulu
  22
  23 Link    Etc/GMT                         Etc/Greenwich
  24 Link    Etc/GMT                         Etc/GMT-0
  25 Link    Etc/GMT                         Etc/GMT+0
  26 Link    Etc/GMT                         Etc/GMT0
  27
  28 # We use POSIX-style signs in the Zone names and the output abbreviations,
  29 # even though this is the opposite of what many people expect.
  30 # POSIX has positive signs west of Greenwich, but many people expect
  31 # positive signs east of Greenwich.  For example, TZ='Etc/GMT+4' uses
  32 # the abbreviation "GMT+4" and corresponds to 4 hours behind UTC
  33 # (i.e. west of Greenwich) even though many people would expect it to
  34 # mean 4 hours ahead of UTC (i.e. east of Greenwich).
  35 #
  36 # In the draft 5 of POSIX 1003.1-200x, the angle bracket notation
  37 # (which is not yet supported by the tz code) allows for
  38 # TZ='<GMT-4>+4'; if you want time zone abbreviations conforming to
  39 # ISO 8601 you can use TZ='<-0400>+4'.  Thus the commonly-expected
  40 # offset is kept within the angle bracket (and is used for display)
  41 # while the POSIX sign is kept outside the angle bracket (and is used
  42 # for calculation).
  43 #
  44 # Do not use a TZ setting like TZ='GMT+4', which is four hours behind
  45 # GMT but uses the completely misleading abbreviation "GMT".
  46
  47 # Earlier incarnations of this package were not POSIX-compliant,
  48 # and had lines such as
  49 #               Zone    GMT-12          -12     -       GMT-1200
  50 # We did not want things to change quietly if someone accustomed to the old
  51 # way does a
  52 #               zic -l GMT-12
  53 # so we moved the names into the Etc subdirectory.
  54
  55 Zone    Etc/GMT-14      14      -       GMT-14  # 14 hours ahead of GMT
  56 Zone    Etc/GMT-13      13      -       GMT-13
  57 Zone    Etc/GMT-12      12      -       GMT-12
  58 Zone    Etc/GMT-11      11      -       GMT-11
  59 Zone    Etc/GMT-10      10      -       GMT-10
  60 Zone    Etc/GMT-9       9       -       GMT-9
  61 Zone    Etc/GMT-8       8       -       GMT-8
  62 Zone    Etc/GMT-7       7       -       GMT-7
  63 Zone    Etc/GMT-6       6       -       GMT-6
  64 Zone    Etc/GMT-5       5       -       GMT-5
  65 Zone    Etc/GMT-4       4       -       GMT-4
  66 Zone    Etc/GMT-3       3       -       GMT-3
  67 Zone    Etc/GMT-2       2       -       GMT-2
  68 Zone    Etc/GMT-1       1       -       GMT-1
  69 Zone    Etc/GMT+1       -1      -       GMT+1
  70 Zone    Etc/GMT+2       -2      -       GMT+2
  71 Zone    Etc/GMT+3       -3      -       GMT+3
  72 Zone    Etc/GMT+4       -4      -       GMT+4
  73 Zone    Etc/GMT+5       -5      -       GMT+5
  74 Zone    Etc/GMT+6       -6      -       GMT+6
  75 Zone    Etc/GMT+7       -7      -       GMT+7
  76 Zone    Etc/GMT+8       -8      -       GMT+8
  77 Zone    Etc/GMT+9       -9      -       GMT+9
  78 Zone    Etc/GMT+10      -10     -       GMT+10
  79 Zone    Etc/GMT+11      -11     -       GMT+11
  80 Zone    Etc/GMT+12      -12     -       GMT+12