From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp0 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id UKuMExC5xl4ZaQAA0tVLHw (envelope-from ) for ; Thu, 21 May 2020 17:23:28 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp0 with LMTPS id QNpsDxC5xl49FwAA1q6Kng (envelope-from ) for ; Thu, 21 May 2020 17:23:28 +0000 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 AF1F6940390 for ; Thu, 21 May 2020 17:23:27 +0000 (UTC) Received: from localhost ([::1]:60672 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jbouj-0002MM-1V for larch@yhetil.org; Thu, 21 May 2020 13:23:25 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50574) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jboLT-0001Qg-I5 for emacs-orgmode@gnu.org; Thu, 21 May 2020 12:46:59 -0400 Received: from mail-sender-5.unibw-hamburg.de ([139.11.10.105]:57278 helo=premail.unibw-hamburg.de) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jboLQ-0007WC-Mo for emacs-orgmode@gnu.org; Thu, 21 May 2020 12:46:59 -0400 Received: from rzav4.unibw-hamburg.de ([139.11.12.54]:24272) by premail.unibw-hamburg.de with esmtp (HSU Mailserver) (envelope-from ) id 1jboLN-00063e-6l for emacs-orgmode@gnu.org; Thu, 21 May 2020 18:46:53 +0200 IronPort-SDR: CcaQLcvHh9i/+2Dg9Lxvv9Te6yzSev8/eMYcQ0K3cwja6RnUoG76u+euWzV/kUnadP9w025w1T xoYNX7/noUF1l+LZzbGXEHlvJYetw1q1oKF0Eck08lnRFYfqoH0TaHM7GxL2VLcSSKgRJnPOh2 fXH6KWE91MefkYt5GhgzvaP+X0KGWJ1JEwEYU5c1VOPH9LaplBilbZQGpMoHa4ZLb8rIaH8LTG fB1KqhejpWxojrVnc79iFioLMV6WyRXnui99rn3bfNWarTeyuQSE1pEfgD/rY3R2/3AQYZkqSP 6Ig= X-IronPort-AV: E=Sophos;i="5.73,418,1583190000"; d="scan'208";a="54719905" Received: from mailcluster-1.unibw-hamburg.de (HELO premail.unibw-hamburg.de) ([139.11.5.101]) by rzav4.unibw-hamburg.de with ESMTP; 21 May 2020 18:46:53 +0200 Received: from x4d000fb9.dyn.telefonica.de ([77.0.15.185]:49492 helo=linux.fritz.box) by premail.unibw-hamburg.de with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (HSU Mailserver) (envelope-from ) id 1jboLM-0005zE-Od; Thu, 21 May 2020 18:46:53 +0200 Date: Thu, 21 May 2020 18:46:18 +0200 From: Detlef Steuer To: emacs-orgmode@gnu.org Subject: Re: A small idea to simplify (further) time input in the date/time prompt Message-ID: <20200521184618.384c229a@linux.fritz.box> In-Reply-To: <86d06xwaj2.fsf@panix.com> References: <875zcpqxnq.fsf@gmail.com> <87eerd78w7.fsf@ucl.ac.uk> <86d06xwaj2.fsf@panix.com> X-Mailer: Claws Mail 3.17.5 (GTK+ 2.24.32; x86_64-suse-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-HSU-Virusscan: Routed to first Viruswall X-Brisant: Sender steuer@hsu-hh.de X-HSU-Virusscan: First Viruswall passed X-Authenticated-Sender: 13438/77.0.15.185 X-HSU-Virusscan: Routed to second Viruswall (Cisco Ironport ESAV) X-Brisant: Sender steuer@hsu-hh.de Received-SPF: pass client-ip=139.11.10.105; envelope-from=prvs=0410a94425=steuer@hsu-hh.de; helo=premail.unibw-hamburg.de X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/21 12:46:19 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: emacs-orgmode@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: rjhorn@alum.mit.edu Errors-To: emacs-orgmode-bounces+larch=yhetil.org@gnu.org Sender: "Emacs-orgmode" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of emacs-orgmode-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=emacs-orgmode-bounces@gnu.org X-Spam-Score: -1.01 X-TUID: qzYEWth2wk3T Am Thu, 21 May 2020 11:52:17 -0400 schrieb Robert Horn : > Eric S Fraga writes: > > > On Thursday, 21 May 2020 at 09:29, Gustavo Barros wrote: > >> So I'd like to suggest a simplification there, which is: a string > >> in the format "hour h minute" (that's small caps letter "H"), but > >> in > > > > I would be strongly in favour of having this option. This is how I > > write times in email messages, for instance, so would be more > > consistent for me. And especially when I communicate with my > > European partners when referring to times after 12 noon. > > > > I would be opposed. There are already dozens of different formats > used in different situations and locations for writing the time. > This would be yet another different time format. It is relatively > unique in that there is no other place in the world that uses it. I > don't think that uniqueness is an argument in its favor. I find it a natural format living in Europe/Germany. And I would like the addition, too. It wouldn't take away anything, just add. But low priority, current ways to specify time work well. As I understand the propsal it is intended for entering times, not for storing. Storing and working with times is a different scale of a problem. > > There some other formats that are actually in widespread use worldwide > that I would prefer as available alternatives: > > European dot notation. Many people use the dot rather than the colon, > so 13:05 is written as 13.05. And that I`ve never seen (tm). The dots are for dates, colons for time. May be there is a country with dot notation as a "standard", but definitely it is not a "European" dot notation. Regards Detlef > I think this is mostly a keyboard, > pen, and pencil thing. Colon is harder to write. It's > inconveniently located on many keyboards. The problem with dot > notation is potential confusion for more detailed time. > "15:53:00.322348" is easy to guess and understand. "15.53.00.322348" > is more confusing. > > Military time, which is used in most militaries, aviation, etc. > > hhmmZ - Time in UTC on a 24-hr clock, also called "Zulu time". The > ISO 8601 time "11:21:00 -0400" would be 1521Z. This is almost > mandatory when dealing with multi-location scheduling so that > everyone uses the same time base. > > hhmmJ or hhmmh - Time in local zone on a 24-hr clock. It's widely > used in military organizations for times that do not need > multi-location scheduling. The time "1121J" or "1121h" is usually > spoken in English as "eleven twenty one hours". These times are > also lack the colon typing problem. > > I've not pushed for these mostly because convenience typing military > time isn't worth figuring out all the changes that would be needed. > > It's worth looking at all the issues discussed in ISO 8601 and > understanding them before you leap into time formatting changes. ISO > 8601 is a compromise solution with lots of warts, but it is widely > supported and understood. >