xref: /illumos-gate/usr/src/data/zoneinfo/systemv (revision 503609a9497e27f206d815a06ce90a747d2ce573)
1*503609a9SYuri Pankov# This file is in the public domain, so clarified as of
2*503609a9SYuri Pankov# 2009-05-17 by Arthur David Olson.
3*503609a9SYuri Pankov
4*503609a9SYuri Pankov# Old rules, should the need arise.
5*503609a9SYuri Pankov# No attempt is made to handle Newfoundland, since it cannot be expressed
6*503609a9SYuri Pankov# using the System V "TZ" scheme (half-hour offset), or anything outside
7*503609a9SYuri Pankov# North America (no support for non-standard DST start/end dates), nor
8*503609a9SYuri Pankov# the changes in the DST rules in the US after 1976 (which occurred after
9*503609a9SYuri Pankov# the old rules were written).
10*503609a9SYuri Pankov#
11*503609a9SYuri Pankov# If you need the old rules, uncomment ## lines.
12*503609a9SYuri Pankov# Compile this *without* leap second correction for true conformance.
13*503609a9SYuri Pankov
14*503609a9SYuri Pankov# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
15*503609a9SYuri PankovRule	SystemV	min	1973	-	Apr	lastSun	2:00	1:00	D
16*503609a9SYuri PankovRule	SystemV	min	1973	-	Oct	lastSun	2:00	0	S
17*503609a9SYuri PankovRule	SystemV	1974	only	-	Jan	6	2:00	1:00	D
18*503609a9SYuri PankovRule	SystemV	1974	only	-	Nov	lastSun	2:00	0	S
19*503609a9SYuri PankovRule	SystemV	1975	only	-	Feb	23	2:00	1:00	D
20*503609a9SYuri PankovRule	SystemV	1975	only	-	Oct	lastSun	2:00	0	S
21*503609a9SYuri PankovRule	SystemV	1976	max	-	Apr	lastSun	2:00	1:00	D
22*503609a9SYuri PankovRule	SystemV	1976	max	-	Oct	lastSun	2:00	0	S
23*503609a9SYuri Pankov
24*503609a9SYuri Pankov# Zone	NAME		GMTOFF	RULES/SAVE	FORMAT	[UNTIL]
25*503609a9SYuri Pankov## Zone	SystemV/AST4ADT	-4:00	SystemV		A%sT
26*503609a9SYuri Pankov## Zone	SystemV/EST5EDT	-5:00	SystemV		E%sT
27*503609a9SYuri Pankov## Zone	SystemV/CST6CDT	-6:00	SystemV		C%sT
28*503609a9SYuri Pankov## Zone	SystemV/MST7MDT	-7:00	SystemV		M%sT
29*503609a9SYuri Pankov## Zone	SystemV/PST8PDT	-8:00	SystemV		P%sT
30*503609a9SYuri Pankov## Zone	SystemV/YST9YDT	-9:00	SystemV		Y%sT
31*503609a9SYuri Pankov## Zone	SystemV/AST4	-4:00	-		AST
32*503609a9SYuri Pankov## Zone	SystemV/EST5	-5:00	-		EST
33*503609a9SYuri Pankov## Zone	SystemV/CST6	-6:00	-		CST
34*503609a9SYuri Pankov## Zone	SystemV/MST7	-7:00	-		MST
35*503609a9SYuri Pankov## Zone	SystemV/PST8	-8:00	-		PST
36*503609a9SYuri Pankov## Zone	SystemV/YST9	-9:00	-		YST
37*503609a9SYuri Pankov## Zone	SystemV/HST10	-10:00	-		HST
38