Path: utzoo!attcan!uunet!decwrl!bacchus.pa.dec.com!shlump.nac.dec.com!shodha.dec.com!devine
From: devine@shodha.dec.com (Bob Devine)
Newsgroups: comp.databases
Subject: Re: Calendar Algorithm
Message-ID: <1547@shodha.dec.com>
Date: 13 Aug 90 17:32:23 GMT
References: <3091.26c69b52@cc.curtin.edu.au>
Organization: Digital Equipment Corp. - Colorado Springs, CO.
Lines: 12

In article <3091.26c69b52@cc.curtin.edu.au>, Wright_RJ@cc.curtin.edu.au (Robert Wright) writes:
> Excuse the ancient, shouted, UPPERCASE Fortran, but this still works to the
> best of my knowledge. This is really a very flexible algorithm.
> 
> C	In the United States daylight saving time begins at 2:00 AM
> C	the last Sunday of April and extends to 2:00 AM the last
> C	Sunday of October.

Be very careful with hardcoding DST rules; the rules change unexpectantly
The current start of DST is the _first_ Sunday in April.

Bob Devine / DEC DB Engineering