From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp11.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 4KJpDliz62OmcwEAbAwnHQ (envelope-from ) for ; Tue, 14 Feb 2023 17:14:16 +0100 Received: from aspmx1.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp11.migadu.com with LMTPS id AKRhDliz62NykgAA9RJhRA (envelope-from ) for ; Tue, 14 Feb 2023 17:14:16 +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 A8292228D6 for ; Tue, 14 Feb 2023 17:14:15 +0100 (CET) Authentication-Results: aspmx1.migadu.com; dkim=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"; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1676391256; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=lEElWZBPDBLY23Tr1z0+Zn0ESL8L+PwClI0Kbtp11Mc=; b=KeRd/5OuQG3rZwhS6oMPtj9a3T44YX6ysRYmslaM+nrBkAGkFIjsuvDmCCYMssZf0p6SO2 nnHfcusb9uFgwozUhy1adD5PaEqDPVrwrg4Ndiw7qgMW0BjC4iySeRoZga2+tk6KsRUCsu T1H7HjSH7ELFo3MWyaxdCU2vt2oZkzgu1RLMrdxx0yNxl3eJokqApOnO5Blpg7lLAD7bqf SoFwXTjnexW4XUQkCwRYodyIlQuZEn3WVlJZnjishedZXbJK5XGM7w8oiaORfSsSkrTnzj SBGo3eoT80HrhZjHnQm0x7wbXG4JQDvnYxg83Sf5YoeZlmQkI84VZGPYkoT55g== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=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"; dmarc=none ARC-Seal: i=1; s=key1; d=yhetil.org; t=1676391256; a=rsa-sha256; cv=none; b=keNQE71Pwi15n9tf/+R09sDHmdV0ua/b5RNjfAih4315EgVpZAoTWi3MZEJIqsPhYpk2zn D7mrAJvml3GDHmq7nwLU8JwWwIqzyUM7ArbbcGiD8wBBfFPyO5RkcaGLTV/QzngzpG0UpS O6/gc8llj+nRvM23/P6bce7+op8+jPzm2CK7ZOE83ejrHkHya/dncy2PgUMDl/zYr79UU8 mKLaB925WTM6jOfcLnINrPqTJDluSwun270gY5e6ScJ/ntezQNAuS8/j5+CZggTT3T5F6u djPQQVdhNAJ0PuDFa8RBcwOovYrEjRh5OpoeTyBI1npFwswWvPqgdaOoueS0Gw== Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pRxvs-000521-3A; Tue, 14 Feb 2023 11:13:28 -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 1pRxvq-00051e-LI for emacs-orgmode@gnu.org; Tue, 14 Feb 2023 11:13:26 -0500 Received: from stw1.rcdrun.com ([217.170.207.13]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pRxvo-0005dk-Ur for emacs-orgmode@gnu.org; Tue, 14 Feb 2023 11:13:26 -0500 Received: from localhost ([::ffff:102.85.204.48]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 0000000000103956.0000000063EBB324.00001C5F; Tue, 14 Feb 2023 09:13:23 -0700 Date: Tue, 14 Feb 2023 18:59:40 +0300 From: Jean Louis To: Max Nikulin Cc: emacs-orgmode@gnu.org Subject: Re: [POLL] Proposed syntax for timestamps with time zone info (was: [FEATURE REQUEST] Timezone support in org-mode datestamps and org-agenda) Message-ID: Mail-Followup-To: Max Nikulin , emacs-orgmode@gnu.org References: <877cwse95m.fsf@localhost> <878rh5eqz4.fsf@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline In-Reply-To: User-Agent: Mutt/2.2.9+54 (af2080d) (2022-11-21) Received-SPF: pass client-ip=217.170.207.13; envelope-from=bugs@gnu.support; helo=stw1.rcdrun.com 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, 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: X-Migadu-Queue-Id: A8292228D6 X-Spam-Score: -1.22 X-Migadu-Spam-Score: -1.22 X-Migadu-Scanner: scn0.migadu.com 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 X-TUID: 9HXyBOPVaCHL * Max Nikulin [2023-02-14 14:45]: > On 14/02/2023 16:45, tomas@tuxteam.de wrote: > > On Tue, Feb 14, 2023 at 10:41:38AM +0100, Heinz Tuechler wrote: > > > Jean Louis wrote/hat geschrieben on/am 14.02.2023 07:00: > > > > Then just representation must be clear: @UTC is unclear in those > > > > cases, but @RELTOUTC would be clear. > > > > > > @RELTOUTC seems unfortunate, as it states only the obvious. If at all, > > > it should be @AHEADUTC or @BEHINDUTC or some abbreviation of it, but as > > > said above, it seems not necessary to me. > > > > That's what the "+" and "-" do, anyway. > > TZ=Etc/GMT-8 date '+%F %a %T %z %Z' > 2023-02-14 Tue 19:37:01 +0800 +08 > > TZ=Etc/GMT+8 date '+%F %a %T %z %Z' > 2023-02-14 Tue 03:38:24 -0800 -08 > > Notice sign in time zone identifier is opposite to time offset. However I am > against RELTOUTC/AHEADUTC/BEHINDUTC. From my point of view +0800/-0800 is > clear enough. > > P.S. Last +08/-08 are really time zone abbreviations, not offset, however > unlike "BST" & Co. they are acceptable to specify offset > unambiguously. That is different use case Max. For this use case I am in full agreement, that is what is used anyway worldwide. What Ihor proposed is time stamp like: 2023-02-14 Tue 12:00:00 +0800 @UTC Though I just say when we put "UTC" that means normally "UTC time zone" and such has no prefix that is positive or negative, can be zero. -- Jean Take action in Free Software Foundation campaigns: https://www.fsf.org/campaigns In support of Richard M. Stallman https://stallmansupport.org/