What times in the morning/afternoon/night are there the least people? When's the best time to go?

Late at nigjt and late.morning, early afternoon

During the day, 1.30 - 3.30p.m.

9pm-6am is the least busy

I go at 10pm to 12am.. its empty just a few people around the pool and basketball court

I go around 530am and it is fairly empty. I understand mid day is fairly light as well as most of people are at work.