jens-maus/yam

# 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 mostly present for historical reasons, so that
# people in areas not otherwise covered by the tz files could "zic -l"
# to a timezone that was right for their area.  These days, the
# tz files cover almost all the inhabited world, and the only practical
# need now for the entries that are not on UTC are for ships at sea
# that cannot use POSIX TZ settings.

# 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".

Zone    Etc/GMT        0    -    GMT
Zone    Etc/UTC        0    -    UTC

# The following link uses older naming conventions,
# but it belongs here, not in the file 'backward',
# as functions like gmtime load the "GMT" file to handle leap seconds properly.
# We want this to work even on installations that omit the other older names.
Link    Etc/GMT                GMT

Link    Etc/UTC                Etc/Universal
Link    Etc/UTC                Etc/Zulu

Link    Etc/GMT                Etc/Greenwich
Link    Etc/GMT                Etc/GMT-0
Link    Etc/GMT                Etc/GMT+0
Link    Etc/GMT                Etc/GMT0

# 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    -    +14
Zone    Etc/GMT-13    13    -    +13
Zone    Etc/GMT-12    12    -    +12
Zone    Etc/GMT-11    11    -    +11
Zone    Etc/GMT-10    10    -    +10
Zone    Etc/GMT-9    9    -    +09
Zone    Etc/GMT-8    8    -    +08
Zone    Etc/GMT-7    7    -    +07
Zone    Etc/GMT-6    6    -    +06
Zone    Etc/GMT-5    5    -    +05
Zone    Etc/GMT-4    4    -    +04
Zone    Etc/GMT-3    3    -    +03
Zone    Etc/GMT-2    2    -    +02
Zone    Etc/GMT-1    1    -    +01
Zone    Etc/GMT+1    -1    -    -01
Zone    Etc/GMT+2    -2    -    -02
Zone    Etc/GMT+3    -3    -    -03
Zone    Etc/GMT+4    -4    -    -04
Zone    Etc/GMT+5    -5    -    -05
Zone    Etc/GMT+6    -6    -    -06
Zone    Etc/GMT+7    -7    -    -07
Zone    Etc/GMT+8    -8    -    -08
Zone    Etc/GMT+9    -9    -    -09
Zone    Etc/GMT+10    -10    -    -10
Zone    Etc/GMT+11    -11    -    -11
Zone    Etc/GMT+12    -12    -    -12