timo That is indeed the situation.
I'm not sure why, but even if my dock clock is in 24H format, I still had to hunt down various other locations in the system that refer to the clock, and found one instance where I had to check a box for 24H format as well...
Now i have proper 24H clocks in Workinghours,
You can remove this 'ask' since the app does work as intended 🙂