From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric S Fraga Subject: Re: org-read-date wrong for dates before 1970 ? Date: Thu, 17 Sep 2015 10:48:06 +0100 Message-ID: <87r3lxcr6x.fsf@ucl.ac.uk> References: <87fv2d2yl5.fsf@kaffanke.at> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:56994) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZcVnZ-0007ax-Hh for emacs-orgmode@gnu.org; Thu, 17 Sep 2015 05:48:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZcVnW-0001Mg-81 for emacs-orgmode@gnu.org; Thu, 17 Sep 2015 05:48:13 -0400 Received: from mail-am1on0103.outbound.protection.outlook.com ([157.56.112.103]:65065 helo=emea01-am1-obe.outbound.protection.outlook.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZcVnV-0001Ma-W9 for emacs-orgmode@gnu.org; Thu, 17 Sep 2015 05:48:10 -0400 In-Reply-To: <87fv2d2yl5.fsf@kaffanke.at> (Martin Kaffanke's message of "Thu, 17 Sep 2015 11:18:30 +0200") List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org To: Martin Kaffanke Cc: emacs-orgmode On Thursday, 17 Sep 2015 at 11:18, Martin Kaffanke wrote: [...] > So there a (german, and english - the last one) formated time is > translated correct for dates after 1970, but its wrong before that. This is a known issue: Unix was born in 1969 and time did not exist before ;-) It's the equivalent of the big bang. More seriously, the data structure used to indicate time and date in Unix is 0 sometime in 1969 and runs out in 2037 (due to 32 bit integer arithmetic), at least as far as org is concerned. -- : Eric S Fraga (0xFFFCF67D), Emacs 25.0.50.2, Org release_8.3.1-234-g8c85c9