On 12 Jan 2000, H. Peter Anvin wrote:
> 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
> --
Err. My calendar seems okay to me <grin>. Some folks believe everything
they see in text. Especially if it was presented on a computer screen.
Script started on Thu Jan 13 09:37:08 2000
# cal 2000
2000
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 1 2 3 4 5 1 2 3 4 5
2 3 4 5 6 7 8 6 7 8 9 10 11 12 6 7 8 9 10 11 12
9 10 11 12 13 14 15 13 14 15 16 17 18 19 13 14 15 16 17 18 19
16 17 18 19 20 21 22 20 21 22 23 24 25 26 20 21 22 23 24 25 26
23 24 25 26 27 28 29 27 28 29 30 27 28 29 30 31
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 1 2 3 4 5 6 7 1 2 3 4
3 4 5 6 7 8 9 8 9 10 11 12 13 14 5 6 7 8 9 10 11
10 11 12 13 14 15 16 15 16 17 18 19 20 21 12 13 14 15 16 17 18
17 18 19 20 21 22 23 22 23 24 25 26 27 28 19 20 21 22 23 24 25
24 25 26 27 28 29 30 29 30 31 26 27 28 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 1 2 3 4 5 6 1 2 3
3 4 5 6 7 8 9 7 8 9 10 11 12 13 4 5 6 7 8 9 10
10 11 12 13 14 15 16 14 15 16 17 18 19 20 11 12 13 14 15 16 17
17 18 19 20 21 22 23 21 22 23 24 25 26 27 18 19 20 21 22 23 24
24 25 26 27 28 29 30 28 29 30 31 25 26 27 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 1 2 3 4 5 1 2 3
2 3 4 5 6 7 8 6 7 8 9 10 11 12 4 5 6 7 8 9 10
9 10 11 12 13 24 15 13 14 15 16 17 18 19 11 12 13 14 15 16 17
16 17 18 19 20 21 22 20 21 22 23 24 25 26 18 19 20 21 22 23 24
23 24 25 26 27 28 29 27 28 29 30 25 26 27 28 29 30 31
30 31
# exit
exit
Script done on Thu Jan 13 09:38:06 2000
Cheers,
Dick Johnson
Penguin : Linux version 2.3.36 on an i686 machine (400.59 BogoMips).
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This archive was generated by hypermail 2b29 : Sat Jan 15 2000 - 21:00:22 EST