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Archiver > TMG > 2005-02 > 1107353712


From: John Cordes <>
Subject: Re: [TMG] Julian vs Gregorian and OS vs NS
Date: Wed, 02 Feb 2005 10:15:12 -0400
References: <002401c508c5$72911f20$6501a8c0@jfc><001301c508d8$48703b00$aba2d718@earthlink.net><6.0.0.22.2.20050201234950.03c56cb8@mail.bellsouth.net><6.2.0.14.0.20050202043812.021cb028@imap.aol.com>
In-Reply-To: <6.2.0.14.0.20050202043812.021cb028@imap.aol.com>


On Wed, Feb 02, 2005 at 04:42:20AM -0500, Allen Mellen wrote:
> At 12:00 AM 2/2/2005, Lee Hoffman wrote:
>
> >If you really want to read a web site that is rather official (what could
> >be more "official" than something from the Greenwich Royal Observatory
> ><g>), go to <http://wwp.greenwichmeantime.com/info/calendar.htm>;.
>
> This site is great on current time, but is very weak in its account of the
> calendar change that began in 1582 and (for Greenwich) ended in 1782.
>
> Allen

Another web page which has an excellent description of a variety of
calendars (of course including the Julian and Gregorian) is that of
John Walker, who founded AutoDesk (the AutoCAD company) in 1982:
http://www.fourmilab.ch/documents/calendar/

Walker also discusses an amusing feature (?) of Excel. If you
format an empty cell to be of Date format and enter the number 60,
Excel will display the lovely date "February 29, 1900". You might
want to think about that for a second, remembering the rules for
leap years...

Walker's web page also includes scholarly references.

Regards,
John

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