From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp10.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms5.migadu.com with LMTPS id SFq4HeF722PaMAAAbAwnHQ (envelope-from ) for ; Thu, 02 Feb 2023 10:01:21 +0100 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp10.migadu.com with LMTPS id sEHiHOF722PbYgAAG6o9tA (envelope-from ) for ; Thu, 02 Feb 2023 10:01:21 +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 1CA3CF15 for ; Thu, 2 Feb 2023 10:01:19 +0100 (CET) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pNVSn-0001IA-7q; Thu, 02 Feb 2023 04:01:02 -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 1pNVSd-0001HZ-EU for emacs-orgmode@gnu.org; Thu, 02 Feb 2023 04:00:55 -0500 Received: from mout02.posteo.de ([185.67.36.66]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pNVSZ-0003TG-Us for emacs-orgmode@gnu.org; Thu, 02 Feb 2023 04:00:50 -0500 Received: from submission (posteo.de [185.67.36.169]) by mout02.posteo.de (Postfix) with ESMTPS id 611132406F5 for ; Thu, 2 Feb 2023 10:00:45 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1675328445; bh=/Ucysvnw9ksdC2gyKfgncoqlo5tyBGc67ZdwpONgN5o=; h=From:To:Cc:Subject:Date:From; b=a36LrlzYDe+O34OHjZO3xFdPVYLdey1m6jj0b7KSn4j6qrsUWnbzSk9P5a9Nme3nM uv+LCCYxRRdHQMMUFDacZ6ib/p5zy8SD5UtKY2CwWxG4w7vO0MInEI+LtKTK3v/Pxr tor4PX8mywLy7jlZy/NTGEkUJ/rwmrQoGmWXcWlerHbLpypPnOI44rOa8waPpaeAjV AwWQPYGmhWyDqRo4qFuC6iNdDVj/0Fr9Vseq/1advhjYgH/7RIZVhujFTsPh7k2dNn LiAw+iZg5FeCo02P0F1KVClIicpZOFHtu54xAE3sKA+LWhuGpa2th3iNM8RXdw4Yut rjRS7Nqhz/1Uw== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4P6t6h2Wd8z9rxG; Thu, 2 Feb 2023 10:00:44 +0100 (CET) From: Ihor Radchenko To: Samuel Wales Cc: Heinz Tuechler , emacs-orgmode@gnu.org Subject: Re: POSIX TS spec reverses the meaning of TZ offset compared to ISO (was: [POLL] Proposed syntax for timestamps with time zone info In-Reply-To: References: <63ca1283.170a0220.5bc81.0fdd@mx.google.com> <87pmb9k8oi.fsf@tsdye.online> <3035CDD5-41DD-4516-9E4E-9E0DF16BE2E0@gmail.com> <87lelo8c9r.fsf@localhost> <2150768.1675077958@archlinux> <87tu063ox2.fsf@localhost> <87r0v9sio1.fsf@christianmoe.com> <87edr9lgq6.fsf@localhost> <87o7qdsf7h.fsf@christianmoe.com> <87v8kljz3n.fsf@localhost> <5dbbab8f-bec8-9272-2a07-b8e484b93c85@gmx.at> Date: Thu, 02 Feb 2023 09:01:20 +0000 Message-ID: <875yckqw4f.fsf@localhost> MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=185.67.36.66; envelope-from=yantar92@posteo.net; helo=mout02.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, RCVD_IN_MSPIKE_H2=-0.001, 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-Seal: i=1; s=key1; d=yhetil.org; t=1675328480; a=rsa-sha256; cv=none; b=mSe1xGi0YMNbakdaupWUJOObJLEogjqMNVLjgaseiQv+zMUF4Y+FLZbODJPWQpd7kz1exv 8uijylQkbK8yA/X7c3G8o1bJLIHIVSHKt6CLt7ax+dua5jj9WSBxkZBte+wZ1C/IcfmxQD e/8hi5Wv3/p72do/Dgor3BI0o7nhvubsIMCNzYtCQJkFnINc6zgWaQXeDMSV5p/+1ah6cg 1jOF0I4mk6+hPguGtYthbYu3jlKK3iN7RInYe0nliMIjT6Dqj48tYz0ctgtM7mrfmTsEfr lQc7agp9G7Nr4Z5aH/+edwBydXNb8yuxjpxGDiZ/tbHLmWOX1eGv2tKNcs/s9g== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=posteo.net header.s=2017 header.b=a36LrlzY; 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=pass (policy=none) header.from=posteo.net ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1675328480; 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=lP8HFqB1kJ8M1i+zyOOjf5FHL+f6rwLp72D1NjR82wc=; b=AEJrr9zq141dqW0cbw3LkI0jQBIHxCFagnIaUt9oJqeCQXLjY7cLLdEAFFlUrq9SaR3nR7 RvyJEcMmchTX/9TlrgW8RmES2k0KxmB+D/f1co0p58ExyWxvM65KZuCCd3rrs1xRoTcAA2 RhPZM7MXqlNMhqPcuvgq9bptQjdbr4A/UkuS4cwINhNoME1w0//kxSODX2Qo44uEe/Hg7W mnPCcek0L8PqtckRUbjiSiBysnQfGIIYfIQ4mC1xAcCq+tMbNEPpX0NOVFtojckUtf3gDG DYlplwujgMA1p4cw2EcQWnYN4hfkGZU1clOnMFvjgCrODdaPGunDx00DwXvK5g== X-Migadu-Scanner: scn1.migadu.com X-Migadu-Spam-Score: -4.55 X-Spam-Score: -4.55 X-Migadu-Queue-Id: 1CA3CF15 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=posteo.net header.s=2017 header.b=a36LrlzY; 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=pass (policy=none) header.from=posteo.net X-TUID: OsaX3lBqALu2 Samuel Wales writes: > perhaps some cities are not listed? what is one supposed to do then? > find a city with equivalent geography and tz policy? Time zones have nothing to do with cities. The same city may have multiple time zones in some cases. You just need to know that current time zone in the area of interest. There is no universal automatic way. The best we can do it providing completion mechanism, like for time zone abbreviations. -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at