Very interesting results, it seems the same locale produces different strings on our systems.
To reproduce what I did, either put `(setq system-time-locale "he_IL")' in the early init file or run ,---- | LC_ALL=he_IL emacs -Q -L ~/.emacs.d/elpa/org-9.8.6/ -l "org" `---- Start org, insert a timestamp for Sunday with an hour and you get <2026-06-21 Sun> When you start toggle the hours or minutes you see org can't parse the date and it resets to 00:00, that's the issue. Morgan Smith [2026-06-19 Fri 20:02] wrote: > I set the environment variable LANG to "he_IL.UTF-8" and was able to run > our entire test suite without issue. LANG doesn't have any effect as far as I can see, only LC_ALL. > <2026-06-19 Fri> > <2026-06-20 Sat> > <2026-06-21 Sun> > <2026-06-22 Mon> > <2026-06-23 Tue> > <2026-06-24 Wed> > <2026-06-25 Thu> That's interesting, these are single word day names, which I can't reproduce. Emacs 30.2, org 9.8.6. Mac OS 26.5.1. Daniel Fleischer
