If the sun is risen everday, that means that the world DOESN'T revolve around the sun, so how does time work? In reality we measure time by the length of each day, but if Celestia and Luna control the sun and moon, than it could be different times everday, somepony could just bribe them to make the day longer, I mean seriously. And just wandering where the sun and moon go when they aren't in the air? Do they just throw them to the side as if it's nothing until the other one is done with?