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From: mcmahan@netcom.UUCP (Dave Mc Mahan)
Newsgroups: comp.databases
Subject: Day Light Savings Time Switchover Periods
Summary: Can I predict it, and when does it happen?
Keywords: Day Light Savings, Spring Forward, Fall Back
Message-ID: <12005@netcom.UUCP>
Date: 15 Aug 90 04:12:31 GMT
Organization: Dave McMahan @ NetCom Services
Lines: 8
References:

I have been asked to determine (if possible) when day light savings periods
will take effect.  I am looking for both the autumn date when it ceases to
exist and the spring date when it goes into effect.  I was under the impression
that it occurs on the first weekend in April (at least in the US), but I don't
know when the autumn restoration occurs.  Does anybody know the formula
used to determine these times?  Am I correct about the spring date?

   -dave