xref: /freebsd/contrib/tzdata/etcetera (revision cc16dea626cf2fc80cde667ac4798065108e596c)
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
12Zone	Etc/GMT		0	-	GMT
13Zone	Etc/UTC		0	-	UTC
14Zone	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 "UTC" file to handle leap seconds properly.
19# We want this to work even on installations that omit the other older names.
20Link	Etc/UTC				UTC
21
22Link	Etc/UTC				Etc/Universal
23Link	Etc/UTC				Etc/Zulu
24
25Link	Etc/GMT				Etc/Greenwich
26Link	Etc/GMT				Etc/GMT-0
27Link	Etc/GMT				Etc/GMT+0
28Link	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 UTC
35# (i.e. west of Greenwich) even though many people would expect it to
36# mean 4 hours ahead of UTC (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
56Zone	Etc/GMT-14	14	-	GMT-14	# 14 hours ahead of GMT
57Zone	Etc/GMT-13	13	-	GMT-13
58Zone	Etc/GMT-12	12	-	GMT-12
59Zone	Etc/GMT-11	11	-	GMT-11
60Zone	Etc/GMT-10	10	-	GMT-10
61Zone	Etc/GMT-9	9	-	GMT-9
62Zone	Etc/GMT-8	8	-	GMT-8
63Zone	Etc/GMT-7	7	-	GMT-7
64Zone	Etc/GMT-6	6	-	GMT-6
65Zone	Etc/GMT-5	5	-	GMT-5
66Zone	Etc/GMT-4	4	-	GMT-4
67Zone	Etc/GMT-3	3	-	GMT-3
68Zone	Etc/GMT-2	2	-	GMT-2
69Zone	Etc/GMT-1	1	-	GMT-1
70Zone	Etc/GMT+1	-1	-	GMT+1
71Zone	Etc/GMT+2	-2	-	GMT+2
72Zone	Etc/GMT+3	-3	-	GMT+3
73Zone	Etc/GMT+4	-4	-	GMT+4
74Zone	Etc/GMT+5	-5	-	GMT+5
75Zone	Etc/GMT+6	-6	-	GMT+6
76Zone	Etc/GMT+7	-7	-	GMT+7
77Zone	Etc/GMT+8	-8	-	GMT+8
78Zone	Etc/GMT+9	-9	-	GMT+9
79Zone	Etc/GMT+10	-10	-	GMT+10
80Zone	Etc/GMT+11	-11	-	GMT+11
81Zone	Etc/GMT+12	-12	-	GMT+12
82