What effect does changing the hub to night-time have?

I discovered, mostly by accident, that you can switch from day to night at the hub by

spinning the ship's wheel at the clock tower

Aside from the obvious of darkening the sky, what in-game effect does this have?

2 Answers

Some characters are only available during the day and some are only available at night.

It has no effect - other than cosmetic maybe, or seeing the pirates in their skeletal form.