I just upgraded to Ubuntu 22.04 and found that the UTC entry of the World Clock is no longer there. Searching for UTC, GMT or similar keywords does not help:
I searched the Internet, and found very old bug reports (here and here) that seem to indicate that the feature was requested by other users in the past, and so it is unlikely that it was intentionally removed.
Is there any way to restore this functionality without installing a plugin?
gnome-clocksv. 41.0, installed throughapt, and it certainly has an UTC entry ("Coordinated Universal Time"). Did you install it throughsnapmaybe?tzdataon your system? Doapt policy tzdata.gnome-clocksrepository and took a look around. It seems that the location database is taken fromGWeather. I think the locations are taken from/usr/lib/x86_64-linux-gnu/libgweather/Locations.bin. Do you have such a file, and doesgrepreveal that the word UTC is in there?gir1.2-gweather-3.0installed on your system? Perhaps evengir1.2-gweather-4.0?gir1.2-gweather-3.0is installed,gir1.2-gweather-4.0was not; I then installed the latter, but it seems to make no difference.grep UTC /usr/lib/x86_64-linux-gnu/libgweather/Locations.binsaysbinary file matches.