From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Richard Stallman Newsgroups: gmane.emacs.devel Subject: Re: does Calendar understand DST rules for past years? Date: Mon, 25 Dec 2006 11:53:16 -0500 Message-ID: References: Reply-To: rms@gnu.org NNTP-Posting-Host: dough.gmane.org Content-Type: text/plain; charset=ISO-8859-15 X-Trace: sea.gmane.org 1167065759 18892 80.91.229.10 (25 Dec 2006 16:55:59 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Mon, 25 Dec 2006 16:55:59 +0000 (UTC) Cc: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Dec 25 17:55:57 2006 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by dough.gmane.org with esmtp (Exim 4.50) id 1Gyt7E-0008AH-G6 for ged-emacs-devel@m.gmane.org; Mon, 25 Dec 2006 17:55:56 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Gyt7E-00044f-3Z for ged-emacs-devel@m.gmane.org; Mon, 25 Dec 2006 11:55:56 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Gyt4n-0002xX-UU for emacs-devel@gnu.org; Mon, 25 Dec 2006 11:53:25 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Gyt4n-0002xG-Ej for emacs-devel@gnu.org; Mon, 25 Dec 2006 11:53:25 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Gyt4n-0002xC-7u for emacs-devel@gnu.org; Mon, 25 Dec 2006 11:53:25 -0500 Original-Received: from [199.232.76.164] (helo=fencepost.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.52) id 1Gyt4m-0002kQ-Vp for emacs-devel@gnu.org; Mon, 25 Dec 2006 11:53:25 -0500 Original-Received: from rms by fencepost.gnu.org with local (Exim 4.60) (envelope-from ) id 1Gyt4e-0005Jc-T5; Mon, 25 Dec 2006 11:53:16 -0500 Original-To: Glenn Morris In-reply-to: (message from Glenn Morris on Sun, 24 Dec 2006 19:07:12 -0500) 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:64252 Archived-At: It seems that the best thing to do is simply delete this paragraph: > The dates used by Emacs for holidays are based on @emph{current > practice}, not historical fact. Historically, for instance, the start > of daylight savings time and even its existence have varied from year to > year, but present United States law mandates that daylight savings time > begins on the first Sunday in April. When the daylight savings rules > are set up for the United States, Emacs always uses the present > definition, even though it is wrong for some prior years. (I see no need to document in the manual the possibility of setting calendar-dst-check-each-year-flag to nil.) Do you see any problem with that solution? Any more that needs to be done?