I am using GB locale
LC_TIME=en_GB.UTF-8
and looking into /usr/share/i18n/locales
LC_TIME
abday "Sun";"Mon";"Tue";"Wed";"Thu";"Fri";"Sat"
...
first_weekday 2
END LC_TIME
seems all fine: in the applet also shows right, starting with Monday
But in GNOME calendar it is still starting with Sunday and since there is no specific option for this in GNOME calendar I am out of ideas.
I also tried to reinstall the calendar, but was not helping. Other calendars (e.g. Evolution's) are working fine, starting with Monday.
I am quite new to Linux, all ideas are welcome.
Edit: after @steeldriver comment, I checked, and the calendar was installed via the 'App Center'.
Now I reinstalled it from the 'Software' application (still DEB, not flatpak, not snap) - and it works perfectly.
But as far as I know the App Center should be the new way for installing apps. So I am not sure whether this needs further reporting or something just went off in my local system. (I also noticed that the app icon it not working well in the App Center way, while having no issues in the Software way. )
Edit2: well, my eyes need further training, it was a snap installation, and the deb package fixed the issue.
