Use minutes if you need a D12 and are playing very slowly. ;)
replyWouldn’t that be hours and really really slowly? Could do seconds mod 12 (or any other factor of 60, which is a lot).
replyUse hundredths of a second on the stopwatch. With a little math, and throwing out invalid results, you can generate a random number in any range < 100.
replyThough I do wonder if the hundredths are true or just for show. Maybe they're randomly chosen. :)
How is it not random?
replyIt’s pseudorandom. It’s predictable in theory because if you had another watch, or an amazing sense of time, you could predict it. Is that realistic? Not really.
replyComputers use their clock to generate pseudorandom numbers all the time (hehe). It’s great randomness for something like shuffling songs or a sorting algorithm. You don’t want to use it with some “adversarial”, like online poker.