Comment 4 for bug 206454

This is somewhat better now (in the clock applet at least). Most timezones are in Swedish, but there is some exceptions. Some don't seem to have a Swedish translation (i.e. Africa/Asmara). But America/Argentina/Buenos_Aires does have a translation and is still not shown in Swedish.

The time zone map in the time and date settings dialog are still all in English.

If this is filed against the wrong package then please move it, I don't know enough about the Gnome internals to be sure.