From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp10.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms5.migadu.com with LMTPS id Wx+9HvWByWP+5AAAbAwnHQ (envelope-from ) for ; Thu, 19 Jan 2023 18:46:29 +0100 Received: from aspmx1.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp10.migadu.com with LMTPS id 8AHdHPWByWOJWAAAG6o9tA (envelope-from ) for ; Thu, 19 Jan 2023 18:46:29 +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 33EA0BF77 for ; Thu, 19 Jan 2023 18:46:29 +0100 (CET) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pIYy4-0004FF-0Y; Thu, 19 Jan 2023 12:44:52 -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 1pIYy2-0004E6-8B for emacs-orgmode@gnu.org; Thu, 19 Jan 2023 12:44:50 -0500 Received: from smtprelay03.ispgateway.de ([80.67.18.15]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pIYy0-0002ZS-Kv for emacs-orgmode@gnu.org; Thu, 19 Jan 2023 12:44:50 -0500 Received: from [46.244.192.137] (helo=condition-alpha.com) by smtprelay03.ispgateway.de with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1pIYzL-00014k-QS; Thu, 19 Jan 2023 18:46:11 +0100 Message-Id: <1fdbdd5a44c0bc05fcef1cc38ba6ced6@condition-alpha.com> From: Alexander Adolf To: Robert Horn , Ihor Radchenko Cc: rjhorn@alum.mit.edu, Daryl Manning , emacs-orgmode@gnu.org Subject: Re: [FEATURE REQUEST] Timezone support in org-mode datestamps and org-agenda In-Reply-To: References: <86zgamtv6o.fsf@gmail.com> <87tu0t1i0c.fsf@localhost> <63c2aa9e.170a0220.3bb49.9ef4@mx.google.com> <87pmbhz1x6.fsf@localhost> <87wn5mlo7f.fsf@localhost> <87pmbelnd0.fsf@localhost> <87fscajo2q.fsf@localhost> <87cz7ejmgu.fsf@localhost> Date: Thu, 19 Jan 2023 18:44:44 +0100 MIME-Version: 1.0 Content-Type: text/plain X-Df-Sender: YWxleGFuZGVyLmFkb2xmQGNvbmRpdGlvbi1hbHBoYS5jb20= Received-SPF: pass client-ip=80.67.18.15; envelope-from=alexander.adolf@condition-alpha.com; helo=smtprelay03.ispgateway.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-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-Flow: FLOW_IN X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1674150389; 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; bh=NthfQv8tjDC5pSj6yB8czlZlIHCwS/sBeHYYor1LfZI=; b=IQk9BdvzF8IKPXfvSdbh85r0RVuOwlQr6Zc7mnTsbDZJ0jZ13l+bPORMhH0v10uei4jSf9 JibHqIPdPP08eBLCm36tS/g/sIaHx5lkMBbEzDT+JqWEUpiBFr6XnyNjSFW6zY6dj4PkKL h/G5mKaObCXF61Cq5rLvkEAtJOZo74JV1XiBb3bCfQU08njJnSKZuARUGNDX7QOZYQNxCd RjWjLeAlW7UU3TXrcN2cPjtdU0eMjni0+na0Oos68QS/MEQwX2eJ849aeIfNyZpINgw6W8 9tFInisb7rC9GSitFyLe5phHW0SIdF4BioLueBo7nMGlhzjWGfunYHYggEFJ+Q== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=none; dmarc=none; 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" ARC-Seal: i=1; s=key1; d=yhetil.org; t=1674150389; a=rsa-sha256; cv=none; b=diM45bJwEsv3Gxw/3l9tWw1u0RhlViHwi8BThr79WiFIwDnhpfv7SYbgB+q1ZboC38iYcb npas7a3FqvnzsjXsfiGS/jwbCaLgik5WZN9Dsmxseb63ODf5M0drcjO23vB7WuATe3NuJa BphjUuNjGm3YKLHnZ1Wk1Dit6a6MdSvygJirHuBKKYpxABD+o/RHpoZG1vQa+vj7OXpYz6 JDo5y+3GGAQb77yqzzLTD1RLbRgYr3CVU9Vdnx/XfKqC1e5FmPP7n/88zFKAb2T5+QmLWf BWjyuLFHbXrVDPiop9rjk5vwpqSQ3W/95wmxKyME/5a6lWh+EDKVkGM3u+KMWQ== X-Migadu-Scanner: scn1.migadu.com X-Migadu-Spam-Score: -2.93 X-Spam-Score: -2.93 X-Migadu-Queue-Id: 33EA0BF77 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; 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" X-TUID: Qc/yfaC9MOp7 Robert Horn writes: > [...] > The issue is clarity of the expected rules for the format. If I > schedule a meeting for 10:05 DST, > [...] In all calendaring software I have used thus far, I don't do that. I can specify a date and time of day only (but never "DST"). The software then works out (likely with the help of the OS, and using POSIX APIs) whether that is DST or not, whenever the event's offset to UTC is needed (e.g. to display the event in another timezone).