Hello, I am investigating test failures with LANG=fr_FR.UTF-8 amongst some other locales. I noticed that the test `test-org-clok/org-clock-timestamps-change' in testing/lisp/test-org-clock.el around line 92 failed with "not at timestamp", which I presume reveals a genuine bug.
To simplify, here is a reproducer: --8<---------------cut here---------------start------------->8--- (require 'org-clock) (with-temp-buffer (org-mode) (insert "CLOCK: [2023-02-19 Sun 22:30]--[2023-02-20 Mon 00:35] => 2:05") (goto-char 25) ; 2|2:30 (org-clock-timestamps-change 'down 1)) --8<---------------cut here---------------end--------------->8--- The error appears: "Not at timestamp". I think it is due to the "." in French day-of-week words, such as "dim.", "lun.", etc. Something must not be expecting punctuations in that place. Reproduced in newest orgmode, and 1-month old Emacs master. -- Best, RY [Please note that this mail might go to spam due to some misconfiguration in my mail server -- still investigating.]