From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp12.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 iKzDOfFL22OxeQEAbAwnHQ (envelope-from ) for ; Thu, 02 Feb 2023 06:36:50 +0100 Received: from aspmx1.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp12.migadu.com with LMTPS id +CjIOfFL22NgTQEAauVa8A (envelope-from ) for ; Thu, 02 Feb 2023 06:36:49 +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 A70BF40BC7 for ; Thu, 2 Feb 2023 06:36:49 +0100 (CET) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pNSGJ-0004rZ-A8; Thu, 02 Feb 2023 00:35:55 -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 1pNSGH-0004pv-7X for emacs-orgmode@gnu.org; Thu, 02 Feb 2023 00:35:53 -0500 Received: from mail.tuxteam.de ([5.199.139.25]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pNSGF-0005Oq-79 for emacs-orgmode@gnu.org; Thu, 02 Feb 2023 00:35:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tuxteam.de; s=mail; h=From:In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:To:Date:Sender:Reply-To:Cc:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=dzhnTyDkYl4Pfyp7DTDlTOLIQJgGY1MuxoksCtESEv8=; b=DuG1vGxvI5tue3A/9WkOCIlyAg 40bsl5I+yBuTWk4o3/g1pg6CQa4sM4gPtiDzfxcu/NPmG55eTnVzyGOcVSxmzIawWvrU7F1y5d9oB 7zc/d2N+0S4XWxPvs5SllD/ynUG3C8rUUJr1Lbwl/9/svzWqzgRR1Prvq/g4//WqmQLiLuIXCRDbB mrwm8NI1dmhEhuNEbpNDEpq5EB5j9YMSmsS8CwwOgq5J1bLZCMV751amvyqMWo3e5hstYTb83TjzI eiJ+g19c3BWKkaLF1dyrO0rexLMLlWEul6McOC7OTs1KuQO3oYqNgSv+DEsvaej/ftrmFVjnijAzd aLoBXNxQ==; Received: from tomas by mail.tuxteam.de with local (Exim 4.94.2) (envelope-from ) id 1pNSGC-0003iK-DP for emacs-orgmode@gnu.org; Thu, 02 Feb 2023 06:35:48 +0100 Date: Thu, 2 Feb 2023 06:35:48 +0100 To: 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 Message-ID: References: <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> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="0Pun5Trc4BFxd3sv" Content-Disposition: inline In-Reply-To: <5dbbab8f-bec8-9272-2a07-b8e484b93c85@gmx.at> From: Received-SPF: pass client-ip=5.199.139.25; envelope-from=tomas@tuxteam.de; helo=mail.tuxteam.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, 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-Country: US X-Migadu-Flow: FLOW_IN ARC-Seal: i=1; s=key1; d=yhetil.org; t=1675316209; a=rsa-sha256; cv=none; b=RHhS+hXyOb3H5Zu1TlhDeb0SlqyOTW3gGiQrWqpqa3YVXhMdTsP+lnNMiUUxI+Jgd2s5xA d8+/a1SvE14OzFNZ7gJMhp0bWlHbKyHzEfNFLRto+go1EQTkQSTVbJqIQ79U8gsCwbCAjI coB0vw+C4C6i1F/dGplxPA0n8C8pFOYZPfue/Lam9VcduP1/gkJqCveZpQXpybdW9VzG0E 5WtlNiSc20GrCznUk0uPQo6wR4yVplgAadm6422ybHp6FxvBeVP9G2WQleb3BQAyCkzeP7 dt47hxpSsfZLMLAHn8gCImSyLwCSThmmCI6Y7BqGBDnh9ebem7GQepiOVudxog== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=tuxteam.de header.s=mail header.b=DuG1vGxv; 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=1675316209; 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:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:dkim-signature; bh=dzhnTyDkYl4Pfyp7DTDlTOLIQJgGY1MuxoksCtESEv8=; b=lTGm40lcv95RrRfAw2MaZKuymvSAgQm+3ALWUM2BWjE1GZy8ZX1F2Cbpd66ixKXI0XCALA fh3mKD8/ymrCeQ4Ct2yVq+R6UYuQflNGZKCcrm2hplm3w03jqOwDESzenup1GjyJopFwcL Ft4iIljl4ImdHXXMTO1J/0kSqadcVLF0IFEIs3hXDeIZjwOQAsp8hkUm3fMciCUSfl53oF ZdfIG+etDuRbJ7LGKvc4igN4Njgc8Lfyr0R63apZa3fgd0eh9O0cssfQS3Gh43gm4N2hpu H21TRMMKlMO2LBAaTpfvrs/1Plf+hGy8oAsL8KwMBwijKDbBZcDDIoj/0nHZ0Q== Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=tuxteam.de header.s=mail header.b=DuG1vGxv; 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 X-Migadu-Scanner: scn1.migadu.com X-Migadu-Spam-Score: 0.52 X-Spam-Score: 0.52 X-Migadu-Queue-Id: A70BF40BC7 X-TUID: 6bgyXH+igFgW --0Pun5Trc4BFxd3sv Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Feb 01, 2023 at 10:57:47PM +0100, Heinz Tuechler wrote: > tomas@tuxteam.de wrote/hat geschrieben on/am 01.02.2023 14:51: [...] > > This is unfortunate indeed. I'd tend to pick one and not to allow > > both, out of fear of counfusion. And if I had to pick one, I'd pick > > ISO [...] > Same for me, I usually see ISO offset. Further, I am used to exchange > time designations (CET, EST, PDT,...) instead of [continent/city] > timezone names [...] Note that they mean subtly different things: CET is "Central European Time", which has a fixed offset of one hour. Europe/Berlin rather means "whatever offset is valid at this time" (which, as we have seen, is ambiguous some of the time and faulty at the other end). You want the second if you want to schedule a regular meeting in your city at the local bar. You want the first in a log file. Cheers --=20 t --0Pun5Trc4BFxd3sv Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQRp53liolZD6iXhAoIFyCz1etHaRgUCY9tLrgAKCRAFyCz1etHa RjGtAJ470B21htsWFjkj0jNBNyil0CXFOQCfXlQ5p10W3UF1FxOM1vOzYq87QE4= =r6e3 -----END PGP SIGNATURE----- --0Pun5Trc4BFxd3sv--