I really must get a new watch.
[Ref: ZKHB] © Kevin Stone
The one I have loses exactly 20 minutes every hour.
It now shows 4:00am and I know that it was correct at midnight, when I last set it.
I happen to know that the watch stopped 4 hours ago, so what is the correct time now?
Hint: For every real hour, how many watch minutes pass?
Back to the puzzles...