systemv revision 180208
1219820Sjeff# @(#)systemv	8.1
2219820Sjeff
3219820Sjeff# Old rules, should the need arise.
4219820Sjeff# No attempt is made to handle Newfoundland, since it cannot be expressed
5219820Sjeff# using the System V "TZ" scheme (half-hour offset), or anything outside
6219820Sjeff# North America (no support for non-standard DST start/end dates), nor
7219820Sjeff# the changes in the DST rules in the US after 1976 (which occurred after
8219820Sjeff# the old rules were written).
9219820Sjeff#
10219820Sjeff# If you need the old rules, uncomment ## lines.
11219820Sjeff# Compile this *without* leap second correction for true conformance.
12219820Sjeff
13219820Sjeff# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
14219820SjeffRule	SystemV	min	1973	-	Apr	lastSun	2:00	1:00	D
15219820SjeffRule	SystemV	min	1973	-	Oct	lastSun	2:00	0	S
16219820SjeffRule	SystemV	1974	only	-	Jan	6	2:00	1:00	D
17219820SjeffRule	SystemV	1974	only	-	Nov	lastSun	2:00	0	S
18219820SjeffRule	SystemV	1975	only	-	Feb	23	2:00	1:00	D
19219820SjeffRule	SystemV	1975	only	-	Oct	lastSun	2:00	0	S
20219820SjeffRule	SystemV	1976	max	-	Apr	lastSun	2:00	1:00	D
21219820SjeffRule	SystemV	1976	max	-	Oct	lastSun	2:00	0	S
22219820Sjeff
23219820Sjeff# Zone	NAME		GMTOFF	RULES/SAVE	FORMAT	[UNTIL]
24219820Sjeff## Zone	SystemV/AST4ADT	-4:00	SystemV		A%sT
25219820Sjeff## Zone	SystemV/EST5EDT	-5:00	SystemV		E%sT
26219820Sjeff## Zone	SystemV/CST6CDT	-6:00	SystemV		C%sT
27219820Sjeff## Zone	SystemV/MST7MDT	-7:00	SystemV		M%sT
28219820Sjeff## Zone	SystemV/PST8PDT	-8:00	SystemV		P%sT
29219820Sjeff## Zone	SystemV/YST9YDT	-9:00	SystemV		Y%sT
30219820Sjeff## Zone	SystemV/AST4	-4:00	-		AST
31219820Sjeff## Zone	SystemV/EST5	-5:00	-		EST
32219820Sjeff## Zone	SystemV/CST6	-6:00	-		CST
33219820Sjeff## Zone	SystemV/MST7	-7:00	-		MST
34219820Sjeff## Zone	SystemV/PST8	-8:00	-		PST
35219820Sjeff## Zone	SystemV/YST9	-9:00	-		YST
36219820Sjeff## Zone	SystemV/HST10	-10:00	-		HST
37219820Sjeff