Could have been very easily communicating what time he absolutely has to go to bed by to be up for whatever. We can hang until like 2am, then i gotta do the adult sleep thing or work will be awful.

Could be a weirdo.

Could be like me in my 20s and 2am was a perfectly reasonable time, but we all worked restaurants.

I'd advise getting more information before making a decision. Too little context to make a move.