Ok, about this watch/clock…
all the numbers from 1:01 to 9:09 are 61 minutes in between doubles.
9:09 to 10:10 is 61
10:10-11:11 is also 61 minutes
but the shortest one is, if on army time: 11:11-0:00 only 49 minutes!
and 12:12-101 is the shortest one if not on army time! Also 49 minutes!
The longest one…. hmmm