So lets see.. What happens when everyone is asleep and only night workers are awake? We have tried to find out and here is what we have noticed.
Mostly its only animals awake. That means rats and birds are having a blast at night - maybe even partying?
Do you know what midnight is? You can read on wikipedia that it is "the transition time from one day to the next".
If you wonder what 3and6 means quora will give you the answer.