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Newsgroups: comp.protocols.time.ntp
Path: gmd.de!Germany.EU.net!mcsun!sunic!psinntp!psinntp!sbcoc!gaia!root
From: jhe...@il.us.swissbank.com (James Herre)
Subject: Looking for time zone info?
Message-ID: <1993Jun3.163156.7522@il.us.swissbank.com>
Keywords: zoneinfo timezone
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Reply-To: jhe...@il.us.swissbank.com (James Herre)
Organization: Swiss Bank Corporation CM&T Division
Date: Thu, 3 Jun 1993 16:31:56 GMT
Lines: 8


Does anyone know of a source for specific, accurate worldwide time zone  
information (i.e. zoneinfo files)?  I need to know precise time zone,  
daylight savings transitions, etc. for specific locations in Europe and  
Asia.

James Herre (jhe...@il.us.swissbank.com)

Newsgroups: comp.protocols.time.ntp
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From: egg...@twinsun.com (Paul Eggert)
Subject: Re: Looking for time zone info?
Message-ID: <bmr~5dU7@twinsun.com>
Keywords: zoneinfo timezone
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References: <1993Jun3.163156.7522@il.us.swissbank.com>
Date: Fri, 4 Jun 1993 06:58:22 GMT
Lines: 19

jhe...@il.us.swissbank.com (James Herre) writes:

>Does anyone know of a source for specific, accurate worldwide time zone  
>information (i.e. zoneinfo files)?  I need to know precise time zone,  
>daylight savings transitions, etc. for specific locations in Europe and  
>Asia.

You might try asking the US Naval Observatory for their current list.
The are the principal official American source for time zone info.

The best automated source is Arthur David Olson's public domain time
zone database, which you can FTP from elsie.nci.nih.gov:pub/tz*.  For
historical data, Olson's database is much better than the USNO's list.

Both the USNO and Olson will readily admit that their data is probably
erroneous.  Politicians love to mess with clocks, and nobody's in
charge of keeping this data up-to-date.  E.g. in 1991 the (now ex)
Soviet Union finally discarded Stalin's harebrained time zone scheme,
but I've never seen an authoritative list of the time zones that replaced it.