From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel,gmane.emacs.pretest.bugs Subject: Re: 23.0.50; on Windows, M-x display-time-world shows the same, incorrect, time for all cities Date: Sat, 27 Oct 2007 16:59:38 +0200 Message-ID: References: <878x6165pn.fsf@offby1.atm01.sea.blarg.net> <47169ECD.8090401@gnu.org> <471A6B16.8060406@gnu.org> <47234687.3050500@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: lo.gmane.org X-Trace: ger.gmane.org 1193497234 3877 80.91.229.12 (27 Oct 2007 15:00:34 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 27 Oct 2007 15:00:34 +0000 (UTC) Cc: offby1@blarg.net, emacs-pretest-bug@gnu.org, apple@kanis.eu To: Jason Rumney Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Oct 27 17:00:34 2007 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1Iln9N-00076z-9G for ged-emacs-devel@m.gmane.org; Sat, 27 Oct 2007 17:00:33 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Iln9E-0003b9-Dx for ged-emacs-devel@m.gmane.org; Sat, 27 Oct 2007 11:00:24 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Iln9B-0003Yn-3L for emacs-devel@gnu.org; Sat, 27 Oct 2007 11:00:21 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Iln99-0003Vi-ED for emacs-devel@gnu.org; Sat, 27 Oct 2007 11:00:20 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Iln99-0003VY-9U for emacs-devel@gnu.org; Sat, 27 Oct 2007 11:00:19 -0400 Original-Received: from fencepost.gnu.org ([140.186.70.10]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1Iln99-0004ss-5P for emacs-devel@gnu.org; Sat, 27 Oct 2007 11:00:19 -0400 Original-Received: from mail.gnu.org ([199.232.76.166] helo=mx10.gnu.org) by fencepost.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1Iln98-0003t6-Me for emacs-pretest-bug@gnu.org; Sat, 27 Oct 2007 11:00:18 -0400 Original-Received: from Debian-exim by monty-python.gnu.org with spam-scanned (Exim 4.60) (envelope-from ) id 1Iln95-0004sH-Gf for emacs-pretest-bug@gnu.org; Sat, 27 Oct 2007 11:00:18 -0400 Original-Received: from nitzan.inter.net.il ([213.8.233.22]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1Iln91-0004qA-3i; Sat, 27 Oct 2007 11:00:11 -0400 Original-Received: from HOME-C4E4A596F7 ([81.5.41.35]) by nitzan.inter.net.il (MOS 3.7.3a-GA) with ESMTP id IDR35002 (AUTH halo1); Sat, 27 Oct 2007 16:57:10 +0200 (IST) In-reply-to: <47234687.3050500@gnu.org> (message from Jason Rumney on Sat, 27 Oct 2007 15:09:11 +0100) X-detected-kernel: by monty-python.gnu.org: FreeBSD 4.7-5.2 (or MacOS X 10.2-10.4) (2) X-detected-kernel: by monty-python.gnu.org: Linux 2.6, seldom 2.4 (older, 4) 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:81852 gmane.emacs.pretest.bugs:20195 Archived-At: > Date: Sat, 27 Oct 2007 15:09:11 +0100 > From: Jason Rumney > Cc: offby1@blarg.net, emacs-pretest-bug@gnu.org, apple@kanis.eu > > BST0BDT should be GMT0BST > JST-9JDT should be JST-9 (no daylight savings in Japan). > I think there may also be no daylight savings in India, but I'm not sure. Thanks, I fixed these (you were right about India). > Also, I think enabling the zoneinfo style names only on GNU/Linux and MS > DOS is too conservative. I simply don't know exactly which ones support zoneinfo, and don't have access to any other system besides those two. The tzcode package says that HP, Solaris, and SGI also support it, but don't provide the details, and at least SGI Irix 6.5 didn't support zoneinfo back when I worked on it 3 years ago, so the support could be version-specific. Please feel free to modify the list as appropriate... > It may be better to use those by > default, and enable the legacy ones on a case by case basis, ...or make this change, if it's deemed better. It strikes me that the best would be to test the support at run time, and do TRT accordingly. If someone knows how to test this, maybe such a test should be part of `set-time-zone-rule', and then `display-time-world' could use it.