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 wHaSIrtz62Od/QAAbAwnHQ (envelope-from ) for ; Tue, 14 Feb 2023 12:42:51 +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 eJOkIrtz62PRFwAA9RJhRA (envelope-from ) for ; Tue, 14 Feb 2023 12:42:51 +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 6109819400 for ; Tue, 14 Feb 2023 12:42:51 +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=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=gmail.com (policy=none) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1676374971; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to: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=RDfohGbI5UUK6nUnGKopqlBEG+5JSUiORggaspcrDQw=; b=ToXi9gVtpId5SKEPYot88fCSAojHnS/zIMpxGlpKl/mi2Fv1DYlD4kDQeb2h9lCEJwIRIC kguh9gPfXo4RFqoYDbXZdfJXB+IbZoKmYH2aQlAoQ92xPdoapbCJVwutoCAdIOW3QzyT2x SGvRKPiR4tGivnKcEdmcjem+9KMH63hjieuawdtEgBW1Kb2C3yw/TPUtAU+lekvFSxwfvh 9whcIoegM4B9NAf0fQhHgU1tj2H2ZnpL2DSqTetjHweSx/2qezDkXvHsZdvajyI6F12nfe SFfki04GyDofvXtEGZjRC/iBT1znDYLHTCrylV1gVp+Pc1zhbWnloOJaeb9MgQ== 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=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=gmail.com (policy=none) ARC-Seal: i=1; s=key1; d=yhetil.org; t=1676374971; a=rsa-sha256; cv=none; b=Vz5KOtNhgT6yw/zPojxk0x/XoKfsP37axokEcpvBx1xK5BjTo5zQ5T/I0Xr75z9i5dDu4T +tP5FTGr+OzZJyya74d2Bf0efCFlHEproh8S47MnSaxuzxAjnbAXwI1HeXdHzuBxcKkGW+ VU3xc2YmV7haZcUPNSuY5knMKakUd08UUOU+9gm+kLG20xQD6WNkVG+jbBHUJADxmf3dsq 1bm0Bo2LYj7200sqBC+zUXHld/iDpmesw7YFEcmqdQ4MvVr0Fc0BRdSfnfMcxhnV8PFhE6 qjhgz+1pjhojpmHkyKYxY3OLm20b6saXAJC65dJpcFxPvFRNUTAgDLoj73UCbw== Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pRthM-0001cz-P9; Tue, 14 Feb 2023 06:42:12 -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 1pRthL-0001cr-GK for emacs-orgmode@gnu.org; Tue, 14 Feb 2023 06:42:11 -0500 Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pRthK-0003oW-69 for emacs-orgmode@gnu.org; Tue, 14 Feb 2023 06:42:11 -0500 Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1pRthG-0001oD-R7 for emacs-orgmode@gnu.org; Tue, 14 Feb 2023 12:42:06 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: emacs-orgmode@gnu.org From: Max Nikulin Subject: Re: [POLL] Proposed syntax for timestamps with time zone info (was: [FEATURE REQUEST] Timezone support in org-mode datestamps and org-agenda) Date: Tue, 14 Feb 2023 18:42:00 +0700 Message-ID: References: <87357i9959.fsf@localhost> <877cwse95m.fsf@localhost> <878rh5eqz4.fsf@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 Content-Language: en-US In-Reply-To: Received-SPF: pass client-ip=116.202.254.214; envelope-from=geo-emacs-orgmode@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: 25 X-Spam_score: 2.5 X-Spam_bar: ++ X-Spam_report: (2.5 / 5.0 requ) BAYES_00=-1.9, DKIM_ADSP_CUSTOM_MED=0.001, FORGED_GMAIL_RCVD=1, FORGED_MUA_MOZILLA=2.309, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, NICE_REPLY_A=-0.345, NML_ADSP_CUSTOM_MED=0.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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: 6109819400 X-Spam-Score: 2.08 X-Migadu-Spam-Score: 2.08 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: 2HFgqBU4QGU3 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.