| Re: Fictional Calendar System Black Razor, the size of the planet doesn't define it's length of year - it's how long the planet takes to orbit it's sun(s). This depends on how far away from the sun it is. So in our solar system, Mercury has a shorter year than Earth's and way shorter than Uranus'.
In effect you can just arbitrarily decide on how long you want your year to be.
Looks like PTeppic got there just before me!! |