From: Karl Voit <devnull@Karl-Voit.at>
To: help-gnu-emacs@gnu.org
Subject: How to get time difference with Elisp?
Date: Tue, 12 Jul 2016 12:46:37 +0200 [thread overview]
Message-ID: <2016-07-12T12-41-55@devnull.Karl-Voit.at> (raw)
Hi!
I need to determine total office hours of a day without the time
spent in lunch break. The source data is officebegin, officeend,
lunchbreakbegin, lunchbreakend - all in string format "HH:MM" like
"14:58".
So far, I failed miserably to find the right combination of
parse-time-string, encode-time, time-substract.
Even determining the difference between only two times resulted in
errors to me:
(setq difference (time-subtract (encode-time (parse-time-string "12:24"))
(encode-time (parse-time-string "11:45"))))
... results in: time-subtract: Wrong number of arguments: encode-time, 1
Can you help me? Thanks!
--
All in all, one of the most disturbing things today is the definitive
fact that the NSA, GCHQ, and many more government organizations are
massively terrorizing the freedom of us and the next generations.
http://Karl-Voit.at
next reply other threads:[~2016-07-12 10:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-12 10:46 Karl Voit [this message]
2016-07-12 11:14 ` How to get time difference with Elisp? tomas
2016-07-12 11:48 ` Karl Voit
2016-07-12 12:25 ` tomas
2016-07-12 13:34 ` Karl Voit
[not found] <mailman.1166.1468320413.26859.help-gnu-emacs@gnu.org>
2016-07-12 11:48 ` Emanuel Berg
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=2016-07-12T12-41-55@devnull.Karl-Voit.at \
--to=devnull@karl-voit.at \
--cc=help-gnu-emacs@gnu.org \
--cc=news1142@Karl-Voit.at \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.