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- From: mike@hpfcso.FC.HP.COM (Mike McNelly)
- Date: Fri, 24 Jul 1992 17:32:50 GMT
- Subject: Re: The Time
- Message-ID: <8860007@hpfcso.FC.HP.COM>
- Organization: Hewlett-Packard, Fort Collins, CO, USA
- Path: sparky!uunet!usc!sdd.hp.com!hpscdc!hplextra!hpfcso!mike
- Newsgroups: comp.misc
- References: <1992Jul15.183702.15249@cpio1.UUCP>
- Lines: 33
-
- > I'm looking for a file of administrative information about the legal
- > time in the USA. For instance, what was GMT when it was april 20,
- > 1950, 2 a.m. in San Francisco ? Was it daylight saving time ?
- >
- > Depending of the history of a country, this file could be difficult to
- > make : for instance, during world war two, France was divided in two
- > zones. Depending of the war, some cities moved out from DST and came
- > back a few weeks or months later because the two zones applied different
- > time calculations.
- >
- > In the USA, I do not know if DST is decided by a national bureau, or
- > if it is applied localy, county per county.
- >
- > I need "only" information from January 1St 1900 to today.
- >
- > Any help would be welcome.
- >
- > Please, use the net to answer if your answer is short enough : mail
- > arrives here only randomly !
-
- In the U.S., the timezones are organized largely along state boundaries
- but the legal requirements are regulated by the individual states, each
- with its own set of laws. Most (but not all) states require the change
- to daylight savings time to be applied uniformly throughout the state.
- I believe that at least one state allows individual communities to
- determine whether they wish to participate in daylight savings time.
- Historically, if a state participates in daylight savings time, it
- changes its time at the same time as other places in the U.S.
-
- Alaska is a state that encompasses several timezones, I believe.
-
- Mike McNelly
- mike@fc.hp.com
-