Re: February 30th 2000
H. Peter Anvin (hpa@transmeta.com)
12 Jan 2000 23:25:52 -0800
Followup to: <200001122154.OAA07786@webber.adilger.net>
By author: Andreas Dilger <adilger@home.com>
In newsgroup: linux.dev.kernel
>
> Daniel writes:
> > This year we're going to have the day February 30th and neither Linux, AIX,
> > Windows NT, 98, 95 know this problem. Feb30th happens each 400 years (Last
> > time we had that was year 1600). There's a webpage (in portuguese) from IDG
> > http://www.uol.com.br/idgnow/corp/corp2000-01-10e.shl (you can translate it
> > at http://babelfish.altavista.com/cgi-bin/translate)
>
> This is totally wrong. The year 2000 is not even a leap year (i.e. NO Feb 29
> either), so your source of information is incorrect. It is completely
> unlikely that all of these independently created OSs have gotten this wrong,
> despite what one thinks of some of them.
>
2000 is a leap year. A regular one. On the Gregorian calendar, 1700,
1800, 1900, 2100, 2200 and 2300 are not leap years, but 1600, 2000,
and 2400 are. Note that when a certain jurisdiction switched to the
Gregorian calendar is, at one level, irrelevant -- it is
perfectly legitimate to refer to the year 400 on the Gregorian
calendar being a leap year, despite the fact that the Gregorian
calendar was invented in the 16th Century AD.
-hpa
--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
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