The clock on the kde plasma panel stoppped..
Just a cautionary tale.
Feeling vindicated once again for having seconds displayed on my taskbar
Have you checked upstream before saying is because of Fedora ?!
Set your computers clock on UTM and check that the computer syncs with the locales time you use.
Just as an information, my gnome clock works … and if not I do have a mobile on which I compare wit 
Happy for you that you missed your train in Switzerland, there you have at least frequently an other option, right?
That probably had saved the day… 