From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp11.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms5.migadu.com with LMTPS id qDGFAExRxWPKCAAAbAwnHQ (envelope-from ) for ; Mon, 16 Jan 2023 14:29:48 +0100 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp11.migadu.com with LMTPS id MIhlAExRxWP1iwAA9RJhRA (envelope-from ) for ; Mon, 16 Jan 2023 14:29:48 +0100 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id D01F1F29F for ; Mon, 16 Jan 2023 14:29:47 +0100 (CET) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pHPYD-0007XT-IP; Mon, 16 Jan 2023 08:29:25 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pHPYB-0007Wt-57 for emacs-orgmode@gnu.org; Mon, 16 Jan 2023 08:29:23 -0500 Received: from mout02.posteo.de ([185.67.36.66]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pHPY9-0000P4-3e for emacs-orgmode@gnu.org; Mon, 16 Jan 2023 08:29:22 -0500 Received: from submission (posteo.de [185.67.36.169]) by mout02.posteo.de (Postfix) with ESMTPS id B46C22401CB for ; Mon, 16 Jan 2023 14:29:19 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1673875759; bh=jXAkG3QazOaxnAL5IrEahMaaDzh6Xsy3jNeDWwE7cEI=; h=From:To:Cc:Subject:Date:From; b=kNhaJ6NknifhTavojETdhtVRX3SDRjh2JICBZmpf+p47bLb6CDEvCVsZnvHSbHLtY m+f+X0p80LdVLxBbODiFNn4eRilKvuerJvq6PVtjT4Gjl8WNLtMFn0hOgq9+7yjKFt iipSsCrFiIqrwRkoRorax2Lw2ImLtZjuFMmvZgL6N1ds00CKrrM2Saf7TGWm9aEJ9p M0ST+Ok9ez5DVhGm3z2+mptn1NqZYnRQ5ZTGE/3fMeUysHKzPdg+ddc8qixlWXV0vt 46R855TGdQMI3VMCRMA0BZbeSvlf/sJ8M5q9P6xgq3R2H0x2BuhIUXjZSJJC2/Tpr5 UXYn/nGdwwZrg== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4NwXtP23Bdz6tms; Mon, 16 Jan 2023 14:29:16 +0100 (CET) From: Ihor Radchenko To: Tom Gillespie Cc: Tim Cross , Max Nikulin , emacs-orgmode@gnu.org Subject: Re: [FEATURE REQUEST] Timezone support in org-mode datestamps and org-agenda In-Reply-To: References: <63c30f34.650a0220.498b8.4573@mx.google.com> <87ilh7evsn.fsf@localhost> <63c46c0c.170a0220.bf97a.b73a@mx.google.com> Date: Mon, 16 Jan 2023 13:29:47 +0000 Message-ID: <875yd6li9g.fsf@localhost> MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=185.67.36.66; envelope-from=yantar92@posteo.net; helo=mout02.posteo.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-orgmode@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-orgmode-bounces+larch=yhetil.org@gnu.org Sender: emacs-orgmode-bounces+larch=yhetil.org@gnu.org X-Migadu-Country: US X-Migadu-Flow: FLOW_IN ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=posteo.net header.s=2017 header.b=kNhaJ6Nk; spf=pass (aspmx1.migadu.com: domain of "emacs-orgmode-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="emacs-orgmode-bounces+larch=yhetil.org@gnu.org"; dmarc=pass (policy=none) header.from=posteo.net ARC-Seal: i=1; s=key1; d=yhetil.org; t=1673875787; a=rsa-sha256; cv=none; b=RYg4zI1o+KbxRAYF6Hn6/N2ntquPfBjJ0UazTxTGn4m7m/4YVsWvmu92XQm7ReX2uO+zEW kN45Q+ygx8xzJalFZ70cilkN+bWRzpnx/IPuGV7fC1MQmrABc9CA87TVqxpoVksVHazTIZ QQNhlfj/vAwUnaVnUBPrbPwoEqPmBni9hpuOKn1rNZlspynl6Z76Nr59f2h7DlrOMw7NqW bmV5uekaqPPH2Ljv5U3ouAiK4FN8QVNX8Ixo8ZZt73KhWLRJF5SlgNGboPDOVS7ufrt/Il ZvkAr/lkO1+JaXAyyIUzYHU3JEIqIlh9dzvkLABLVn9/rmU0UJsmIXmCheMB1Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1673875787; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:dkim-signature; bh=1e6BWmrVB5uTLC4f9rki1OlrWmuPnZO4SkszaYq5sZ8=; b=mtl0MvcvRoXNsw3fLalt+i5MJquoclIrk3fz8FKaKwwpFw1YOu76LYSCZtLAYQKG/ClxbA f8gc0bfnZ16GL/wRn8vefX4wQH2MiFkdhsBtW6lbnEmXJNjltn78huPVG4ZLDpnCfvjF4t OPuDXkxiUiwppNGQ00cmS/+Zk2PHSHrTtxr2DhSajwkVvSr0Fjz9kVhCpZSsquEIOeqzNp ZZ1FFbwcejWbaNY3MlYeKHvv3U05T79+Bg9JA05YtjBaEv8S1tDUs8Iq0CpamBnuTKX+NZ jcy9+z4M+O7Jcn2iK3/anAdjYIafMMRB/MCkgdfomP8v+UrdRHlPuXY+gPo0Bw== X-Migadu-Queue-Id: D01F1F29F X-Migadu-Scanner: scn0.migadu.com Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=posteo.net header.s=2017 header.b=kNhaJ6Nk; spf=pass (aspmx1.migadu.com: domain of "emacs-orgmode-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="emacs-orgmode-bounces+larch=yhetil.org@gnu.org"; dmarc=pass (policy=none) header.from=posteo.net X-Migadu-Spam-Score: -8.17 X-Spam-Score: -8.17 X-TUID: 6sSULoK1ObK2 Tom Gillespie writes: >> So I guess the timestamp format and the code which manages them will >> need the ability to use the full TZ name and not just the abbreviated >> form (and I guess an option to allow the user to select). In fact, we >> probably need a way to select between abbreviated/full dynamically as >> well as you might use the different TZ types as a way to flag which >> timestamps you want to adjust due to TZ changes (either in TZ db or in >> user location) and those you don't want changed. > > I think the only sane way to do this is to require timezone abbreviations > /expansions to be defined in the file itself and never in an init.el there is > simply too much ambiguity and if the information is lost we are out of luck. I strongly disagree. I'd prefer to allow only internationally recognized time zone format. Let's not make life harder for Org file parsers. -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at