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 IKXJJQW+x2Md7wAAbAwnHQ (envelope-from ) for ; Wed, 18 Jan 2023 10:38:13 +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 EK7HJAW+x2NexQAAG6o9tA (envelope-from ) for ; Wed, 18 Jan 2023 10:38:13 +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 68853E1AA for ; Wed, 18 Jan 2023 10:38:13 +0100 (CET) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pI4t7-0007NS-6i; Wed, 18 Jan 2023 04:37:45 -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 1pI4t6-0007NJ-5g for emacs-orgmode@gnu.org; Wed, 18 Jan 2023 04:37:44 -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 1pI4t4-0002ww-0B for emacs-orgmode@gnu.org; Wed, 18 Jan 2023 04:37:43 -0500 Received: from submission (posteo.de [185.67.36.169]) by mout01.posteo.de (Postfix) with ESMTPS id E7F33240124 for ; Wed, 18 Jan 2023 10:37:38 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1674034658; bh=nMov++ewxkLSQCRekgKAp4jkIlbduVpaoF5WvZ/fRGI=; h=From:To:Cc:Subject:Date:From; b=XSTEE+zYw59WoFBXhrxBU7/kgaHSxUo2upnDI3YTIOklf6jvf4ac4oFXt5H86pTgc plnOobQkuh35ehH2uYkG6iZVn9ub07i9u8jhlM/UGAoai5omwF7o/B5jKkMuyvL4gj 7dk5dxdEVwZUd3sH3s61s5R+gvJRv8My5WfPYZB2PAQXSN8EIeTZA8V6F3FL25C4/f sNNO5DF2JMoDxUDqnbEf12fJopsS/s8xftIqK7rTncBpAZMA9nyqovTjp5UeA8a5dI nKQB0BdVX2eZYq4Tv0mN3Z45hD/UU6pl7+sDXSISfUluQMjtOc0glJqkwCSeD8Y61z L7SZzR/LBlDQA== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4Nxgf965k8z6tmS; Wed, 18 Jan 2023 10:37:37 +0100 (CET) From: Ihor Radchenko To: Jean Louis Cc: Tim Cross , 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> <87tu0qlo01.fsf@localhost> Date: Wed, 18 Jan 2023 09:38:10 +0000 Message-ID: <874jso89od.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=1674034693; 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=timcbxQoO2VWE3hGxJkIBbtf9F0aFmBUWeXYVkGVc3Y=; b=eb2kbCUdvxQrjOLefZkUvTkWYInFL5EN93bIK9hcG2rTLrYEcA/dsQk8UOkCtQho6U2fq9 FqV14hU7ZOrq7ArXUSS4Oz3OIEs8Uf6OS5g5ycRmNds0xVLcA8svLPZE9YgGuPfNYw/JlE HdO+ah2D2XLobTq8ALgvxgPeClPXIV9bl+xGZ0iAa04cVvYyat2aCvRsDPKeH3U5BHvCZp eUiHz+ZqW3p1zEesvkaJql/nvoPOnTe2OAuMvKT1iOMAJjuJVPGZ38Fr3gaxCYTF+HV1J6 lBbAKHh61WsRd3plYsLuUHSUVf8cl9r3DP2ksYsT4nFVkEsqI9+tXntDHt3Cxw== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=posteo.net header.s=2017 header.b=XSTEE+zY; 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=1674034693; a=rsa-sha256; cv=none; b=r4gldZpWVPjI2ytXQt9jDkkpJswCQxKlNM1nw1x7ZYIzOcg2RqRfJf3xLU5i+0rS0i6KPU r/78uMYfLya0ry1xm2uFlL96tPjpEbcYto6QuiYGGvLjv+LYLHhRBO0v+V5YS1TMUmUGFr rrjHUDYTCk9QJbJ5OIU1ZZWQpViYij02qtDMjWgWhFBmmZ0c6RIWNnxlZQvGXD5Njo9F4Q rF8pff3yF+mhz5xJwgnqmW5c26PAHH83PN2CbqkOQyF/w5/zzogka+oBTxw4ySUUDdKNt+ WV/nI3A6VGn10eEYFxjxld5CedACGfQL8itMnyA3ORzF25SKy3F2jbh9Rne2tg== X-Migadu-Scanner: scn1.migadu.com X-Migadu-Spam-Score: -4.58 X-Spam-Score: -4.58 X-Migadu-Queue-Id: 68853E1AA Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=posteo.net header.s=2017 header.b=XSTEE+zY; 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: G+qYO6OOxOm3 Jean Louis writes: >> >> I am not sure what is the problem. >> >> The timestamps that should stay in local time will be automatically >> >> updated as your system TZ is updated. >> > >> > Then Org shall know what was local time! Without being specified in >> > the time stamp, it has to be specified somewhere, as computer can't >> > know at which time zone was it specified. >> >> We need nothing to use current time zone. And we already do it. >> >> System clock knows the current time zone. Emacs has an ability to >> determine current time zone. See `current-time-zone'. This works >> automatically (and already) because we use `encode-time'. > > Then you did not understand the point. > > For users who use Org personally, in single place, single time zone, > who do no travel, who do not share headings, tasks, and files > internationally, they really do not need hussle with time zones! > > However, when nice strong guy makes an Org file with list of tasks in > Ukraine and send it to nice girl Florida, she will simply think that > at 9 o'clock she has to discuss making visa with her fiance, but > fiance is already pissed off because she did not appear at online > meeting. Sure. Then, a guy from Ukraine can add default timezone to the shared file/heading. It will then apply to all the timestamps that do not explicitly specify the time zone in the file/heading contents. -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at