From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ed Reingold Newsgroups: gmane.emacs.devel Subject: Re: 'cal 9 1752' and emacs calendar disagree Date: Wed, 19 Jul 2006 17:24:24 -0500 Message-ID: <200607192224.k6JMOOHT024840@emr.cs.iit.edu> References: NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: sea.gmane.org 1153347894 5189 80.91.229.2 (19 Jul 2006 22:24:54 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Wed, 19 Jul 2006 22:24:54 +0000 (UTC) Cc: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Jul 20 00:24:54 2006 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1G3KTG-0002Hw-4f for ged-emacs-devel@m.gmane.org; Thu, 20 Jul 2006 00:24:46 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1G3KTF-0006wr-FV for ged-emacs-devel@m.gmane.org; Wed, 19 Jul 2006 18:24:45 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1G3KT4-0006uy-CH for emacs-devel@gnu.org; Wed, 19 Jul 2006 18:24:34 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1G3KT3-0006sg-Bt for emacs-devel@gnu.org; Wed, 19 Jul 2006 18:24:33 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1G3KT3-0006sK-7e for emacs-devel@gnu.org; Wed, 19 Jul 2006 18:24:33 -0400 Original-Received: from [216.47.142.126] (helo=emr.cs.iit.edu) by monty-python.gnu.org with esmtp (Exim 4.52) id 1G3KT6-00049w-HX for emacs-devel@gnu.org; Wed, 19 Jul 2006 18:24:36 -0400 Original-Received: from emr.cs.iit.edu (localhost [127.0.0.1]) by emr.cs.iit.edu (8.13.6+Sun/8.13.6) with ESMTP id k6JMOOHT024840; Wed, 19 Jul 2006 17:24:24 -0500 (CDT) X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.0.4 Original-To: Leon In-Reply-To: Message from Leon of "Wed, 19 Jul 2006 23:16:50 BST." X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:57352 Archived-At: No, it is not a bug. The odd Sept 1752 was only that way in England and = her=20 colonies--not in general. It is the Unix cal program that is in error. = The=20 Emacs calendar shows the Gregorian calendar, period. But it allows one t= o get=20 dates on many other calendars as well, such as the Julian. What cal give= s is=20 the first part of the month on Julian calendar and the latter part on the= =20 Gregorian--that is nonsense. The date the switch was made is geographically dependent and stretched ov= er a=20 period of hundreds of years. >=20 > Hi there, >=20 > For some historical reasons=C2=B9, September 1752 is a special month th= at > has no 3 - 13 dates. As you can see, 'cal 9 1752' will gives >=20 > September 1752 =20 > Su Mo Tu We Th Fr Sa > 1 2 14 15 16 > 17 18 19 20 21 22 23 > 24 25 26 27 28 29 30 >=20 >=20 > While emacs calendar gives: >=20 > September 1752 =20 > Su Mo Tu We Th Fr Sa=20 > 1 2=20 > 3 4 5 6 7 8 9=20 > 10 11 12 13 14 15 16=20 > 17 18 19 20 21 22 23=20 > 24 25 26 27 28 29 30 >=20 > Is this a bug? >=20 > Footnotes:=20 > =C2=B9 http://www.farid-hajji.net/fun/cj-cal91752.html > --=20 > Leon >=20 >=20 >=20 > _______________________________________________ > Emacs-devel mailing list > Emacs-devel=40gnu.org > http://lists.gnu.org/mailman/listinfo/emacs-devel