From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp10.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms5.migadu.com with LMTPS id IIibKuHCx2OuowAAbAwnHQ (envelope-from ) for ; Wed, 18 Jan 2023 10:58:57 +0100 Received: from aspmx1.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp10.migadu.com with LMTPS id 8KedKeHCx2PI9QAAG6o9tA (envelope-from ) for ; Wed, 18 Jan 2023 10:58:57 +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 7A52328D8F for ; Wed, 18 Jan 2023 10:58:57 +0100 (CET) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pI5DH-0002S0-FU; Wed, 18 Jan 2023 04:58:35 -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 1pI5DF-0002Ql-Mm for emacs-orgmode@gnu.org; Wed, 18 Jan 2023 04:58:33 -0500 Received: from mout01.posteo.de ([185.67.36.65]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pI5DE-00066Y-6r for emacs-orgmode@gnu.org; Wed, 18 Jan 2023 04:58:33 -0500 Received: from submission (posteo.de [185.67.36.169]) by mout01.posteo.de (Postfix) with ESMTPS id CF81B2401E8 for ; Wed, 18 Jan 2023 10:58:29 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1674035909; bh=WFdJvnKCK7a9mkTCs1UhCAYaQvqlhedITmDikH9HTgI=; h=From:To:Cc:Subject:Date:From; b=blE9GkrKALM8P2rRL5vGx5beVYSEUHaE29Ji3vbha4Kl9p933PEbTgABZz/nSpA5w c2WTV4YWeNXu4G3lAWn7ceiMEFEm4WipGam0+h89QeB18OQqnEpAHdgHVavsnkxfxg SJ1NcYfBR7XjzjqOZX8HYwxT0JAR5QT68vWed/hLwMGaKxDkonzEtexK1Qw99A7YuI V0NbLHMhq87ExlKPHvDaxCgjrOxs+T3MvowVvDT34rTsygdkQ/q3BcUumJh8W1vvlB zugX6S4zAF0xREoZcl8pf99H9xHEOXgZeePrjUT7Ma2wf+Jb5oIKi0dTgxc5LZbC8G wP1WedwWHkZ7g== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4Nxh6D03H8z6tmx; Wed, 18 Jan 2023 10:58:27 +0100 (CET) From: Ihor Radchenko To: Max Nikulin Cc: 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> <87k01p1gvx.fsf@localhost> <87tu0rex01.fsf@localhost> <87ilh6jpgk.fsf@localhost> Date: Wed, 18 Jan 2023 09:59:00 +0000 Message-ID: <87y1q06u57.fsf@localhost> MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=185.67.36.65; envelope-from=yantar92@posteo.net; helo=mout01.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, 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-Flow: FLOW_IN X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1674035937; 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=MLeVrZRzppYo355FFATRJ3HCj/2E3USLvSswT08Hzrg=; b=UzFWhtZoJ1hzwBin1LOgHt3lnJvt9AH0tq/ITTNQXpYAsTKNmuRcuEwjjjkssm5ZepM+sN Y+qldl6tglbhB8O8yLGqov7X5ucBGjyBRO/USzoOlRsBUvw7e+9RNJO/sMMQ+LnT/Hre9E 7XL48N1QILuXH3e60YeXyjOHGDy4s/qQLswW2nNJxi7OJXmvAREgmpVqolxT9XjEGKwXMd 61lGDw+m1EbA8lu2A2aY9C/DpReyvfVw72+5qLkPCXZvkjNK8yqYpV55iOatu31DMA/9PC /kixTkvr7NV8SuMprhQA9gzQq6cbgbFEBdxPY+nhA7pQ+OTuuCIJZAB2vRNI2A== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=posteo.net header.s=2017 header.b=blE9GkrK; dmarc=pass (policy=none) header.from=posteo.net; 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=1674035937; a=rsa-sha256; cv=none; b=ndihjBuASsXA9oF+EFUwbhXBKwenSD+3RQnr7ZctpwiEo9NsNKWVNjpqnxvLMHakZJKSKY IeGVttXY9+pOzKxhkbb5OCLPstsaNbxdn6FPIjL6Rw/+U3Gi5Tf8L1A04Rkp4e2kSzqpy+ X4IdXAcK+qU1kcEoRIMLttBH/JFm4dHQauoJERAVwMtHNjzfzhpu1Lpz0zEoArw65QRKol VOTtuR0JFjpLj4NNci6vQG4X2LOyMTIPxBU4mR60LOMV7ECZ/TTsZo7ypnAyQ3c/ili4kv LhAwMjhQSq199lwZp6Qvb18IFHQB9pbRhPcBGXAQFA0aI5UL3gwwoWMNKtiENQ== X-Migadu-Scanner: scn1.migadu.com X-Migadu-Spam-Score: -4.58 X-Spam-Score: -4.58 X-Migadu-Queue-Id: 7A52328D8F Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=posteo.net header.s=2017 header.b=blE9GkrK; dmarc=pass (policy=none) header.from=posteo.net; 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: tgEe8FimYHMA Max Nikulin writes: > ... I am unsure concerning Windows, it may have an option of quite > similar variant. That is why I am not sure to which degree Org should be > liberal in respect to various time zones. May we just support whatever TZ supports (POSIX)? I was also thinking about ISO 8601, but it interferes with time ranges (4:00-8:00 may be both "from 2am to 8am" and "4am UTC-08"). Though other ISO 8601 variants like 4:00-0800 might work. -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at