When I insert timestamps, even if by using the calendar, org inserts something like <2016-10-20 Thu>. However, I sometimes have to use machines with a different locale, which inserts <2016-10-20 cs>.

This, of course, I can parse, but it makes my (otherwise fully English) Org files look inconsistent. Given that Org doesn't parse the day name and inserts it for pure readability reasons[citation needed], is there a way to prevent Org inserting it at all?

2 Answers 2


Yes. You can customize the variable org-time-stamp-custom-formats and remove the %a from the default. Note you also need to set the org-display-custom-times variable to something other than nil.

  • I don’t really want to mess with org-display-custom-times (and it seems I don’t really have to). I simply removed existing day name abbreviations with a regex-replace, and set my org-time-stamp-formats Oct 21, 2016 at 13:43

Although a custom format suggested by @icarus seems to be a good idea, I generally like the standard Org-mode format of %Y-%m-%d and %Y-%m-%d %H:%M (without that pesky %a part). As the only thing I wanted to get rid of is the name of the day, I ended up setting org-time-stamp-formats (I use use-package; if you don’t use such package managers, this setq should go into after-init-hook; otherwise org.el’s defvar will overwrite your preference.)

(use-package org
  (setq org-time-stamp-formats '("<%Y-%m-%d>" . "<%Y-%m-%d %H:%M>"))

Note: I also found out from the docs that I can update the day name C-c C-c if it is wrong, but that’s just an overkill for my situation.

  • The org-time-stamp-formats is declared with defconst in my version (24.5.1) of emacs, which is why I didn't suggest changing it.
    – icarus
    Oct 21, 2016 at 14:19
  • Good point, I haven’t checked that (and I guess that’s why it got overwritten if I put it under :init instead of :config). I will experiment with org-time-stamp-custom-formats, then. Oct 21, 2016 at 14:23

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