From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: david@adboyd.com (J. David Boyd) Newsgroups: gmane.emacs.help Subject: Re: How to get hours from hh:mm Date: Thu, 14 Jun 2007 16:15:39 -0400 Message-ID: References: <467136b6$0$69886$e4fe514c@news.xs4all.nl> <878xamk6bb.fsf@thalassa.lan.informatimago.com> <46714963$0$328$e4fe514c@news.xs4all.nl> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1181852185 24382 80.91.229.12 (14 Jun 2007 20:16:25 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Thu, 14 Jun 2007 20:16:25 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Jun 14 22:16:22 2007 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1Hyvjy-0000sh-8H for geh-help-gnu-emacs@m.gmane.org; Thu, 14 Jun 2007 22:16:22 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Hyvjv-0002lN-J8 for geh-help-gnu-emacs@m.gmane.org; Thu, 14 Jun 2007 16:16:19 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Hyvjg-0002l2-Ff for help-gnu-emacs@gnu.org; Thu, 14 Jun 2007 16:16:04 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Hyvjf-0002ki-JV for help-gnu-emacs@gnu.org; Thu, 14 Jun 2007 16:16:03 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Hyvjf-0002kf-Dr for help-gnu-emacs@gnu.org; Thu, 14 Jun 2007 16:16:03 -0400 Original-Received: from main.gmane.org ([80.91.229.2] helo=ciao.gmane.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Hyvjf-0002cN-2u for help-gnu-emacs@gnu.org; Thu, 14 Jun 2007 16:16:03 -0400 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1HyvjT-0000Kb-Iu for help-gnu-emacs@gnu.org; Thu, 14 Jun 2007 22:15:51 +0200 Original-Received: from 156-40.126-70.tampabay.res.rr.com ([70.126.40.156]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 14 Jun 2007 22:15:51 +0200 Original-Received: from david by 156-40.126-70.tampabay.res.rr.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 14 Jun 2007 22:15:51 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 27 Original-X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: 156-40.126-70.tampabay.res.rr.com User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.1.50 (gnu/linux) Cancel-Lock: sha1:+hDdFDpb1BcAIgw/QS0hZ7HpCxg= X-detected-kernel: Linux 2.6, seldom 2.4 (older, 4) X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:45076 Archived-At: Cecil Westerhof writes: > Pascal Bourguignon wrote: > >> Cecil Westerhof writes: >> >>> I have a table in org-mode with time needed to travel from A to B an the >>> number of km. I would like to get the average speed. How do I convert a >>> time? For example 0:45 becomes 0.75. >> >> How do you know that 0:45 becomes 0.75? >> >> How did you do it? > > I did not. I want. 0:45 is three quarters of an hour, so in mathematical > notation 0.75. > What I would like: > - the first field contains 90 > - the second field contains 0:45, or 00:45 > - the third field is computed to 120 It is based on dividing by 60. 0:45 is 45 minutes, which is 45/60 of an hour. This becomes .75.