Day/Night cycle for different planets

[macmo920]

I love the Restrict button, it's interesting to think the characters know when to work and when to sleep and take breaks, etc. I think it would be interesting if the world we generated had an interesting day/night cycle. For example, not every planet is the same size and rotation as Earth, perhaps on one world we have a 36 hour day. Now it takes a decent amount of thought processing to think, how long will we make them work and sleep, etc.?