From mboxrd@z Thu Jan 1 00:00:00 1970 From: Carsten Dominik Subject: Re: Midnight and noon in agendas Date: Fri, 2 Jun 2006 07:15:15 +0200 Message-ID: <8f7cc6986079c0cfee6c91b925f0a175@science.uva.nl> References: <447F79F8.2060708@gmail.com> Mime-Version: 1.0 (Apple Message framework v623) Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Fm20C-0007Pw-3D for emacs-orgmode@gnu.org; Fri, 02 Jun 2006 01:15:16 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Fm209-0007Pk-IM for emacs-orgmode@gnu.org; Fri, 02 Jun 2006 01:15:14 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Fm209-0007Ph-Dt for emacs-orgmode@gnu.org; Fri, 02 Jun 2006 01:15:13 -0400 Received: from [194.134.35.146] (helo=smtp06.wanadoo.nl) by monty-python.gnu.org with esmtp (Exim 4.52) id 1Fm26Y-0004h4-63 for emacs-orgmode@gnu.org; Fri, 02 Jun 2006 01:21:50 -0400 In-Reply-To: <447F79F8.2060708@gmail.com> List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org To: "Daniel J. Sinder" Cc: emacs-orgmode@gnu.org Well, if this is the way things are normally interpreted, then this is clearly a bug. Thanks for explaining this to me. Strange system. Switching am to pm always makes the event happen later, except when the hour is 12. However, I will not make items jump days because of a time specification. This has first of all technical reasons: Agenda entries are collected based on the date only. The time-of-day specification is only used later in the process to sort the entries on the day. So given this restriction, what would you or other people here want: Should 12am be listed as 0:00 or as 24:00? Should 12:21am be listed as 0:21 or as 24:21? It seems to me that the logic would be a bit better to schedule these show uo as 0:00 and 0:21. If you wanted to put something at midnight at the end of the day you would then have to use 24:00 and 24:21. Opinions? - Carsten On Jun 2, 2006, at 1:36, Daniel J. Sinder wrote: > I've noticed that '12pm' when used as a time-of-day specification > puts an entry at 24:00 in the agenda. '12am' places the item at > noon in the agenda. > > It is arguable whether 00:00 should be used instead of 24:00. > Personally, I prefer it the way it is, where midnight events are > placed at 24:00 because if I have something scheduled/due at > midnight, I'd like to see it on the agenda for the day *preceding* > the event/item. > > However, the issue I differ on is the interpretation of 12am as noon > and 12pm as midnight. Although they are both ambiguous, it seems > that 12am is more typically associated with midnight, while 12pm is > associated with noon. One explanation goes like this: Since the > 24-hour clock runs from 00:00:00--23:59:59, then 00:00:00-11:59:59 > is AM and 12:00:00-23:59:59 is PM. > > Just curious....is the current mapping a deliberate choice or a bug? > > Dan > > > _______________________________________________ > Emacs-orgmode mailing list > Emacs-orgmode@gnu.org > http://lists.gnu.org/mailman/listinfo/emacs-orgmode > > -- Carsten Dominik Sterrenkundig Instituut "Anton Pannekoek" Universiteit van Amsterdam Kruislaan 403 NL-1098SJ Amsterdam phone: +31 20 525 7477