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Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!csd4.milw.wisc.edu!indri!nic.MR.NET!hal!ncoast!allbery
From: allbery@ncoast.ORG (Brandon S. Allbery)
Newsgroups: comp.sys.ibm.pc,comp.sys.atari.st
Subject: Re: Will Your SW Make it to the year 2000?
Message-ID: <13777@ncoast.ORG>
Date: 28 Jun 89 22:48:02 GMT
References: <4342@druhi.ATT.COM>
Reply-To: allbery@ncoast.ORG (Brandon S. Allbery)
Followup-To: comp.sys.ibm.pc
Organization: Cleveland Public Access UN*X, Cleveland, Oh
Lines: 31

As quoted from <4342@druhi.ATT.COM> by terrell@druhi.ATT.COM (TerrellE):
+---------------
| Will your software make it into the 21st century?  Does it cope with the
| Gregorian calendar reform of the 16th century?
| 
| I was amused to find that allegedly state of the art scheduling software, 
| TimeLine, is broken for the year 2000.  So is MS DOS.
| 
| The Gregorian calendar reform makes every year evenly divisible by 4 a
| leap year EXCEPT for century years.  Consequently there is no January 29,
| 2000.
+---------------

(1) Presumably, you meant February 29.
(2) You got it wrong.  The rules for the Gregorian calendar are:

	a leap day every 4 years,
	EXCEPT in the year preceding the beginning of the next century
		(remember, the 21'st century starts in 2001, not 2000;
		there is no year 0)
	EXCEPT when that year is divisible by 400, in which case it
		again has a leap day.

    Thus, the year 2000 *is* a leap year.

++Brandon
-- 
Brandon S. Allbery, moderator of comp.sources.misc	     allbery@ncoast.org
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