This is not about religion so no debating about it here please. I was just wondering that if evolution did indeed occur (as a biology major I am compelled to believe some aspects are true but not the entire picture) then I want to know, for the people who argue about the God creating the earth in the book of Genesis; they often argue that it is not known how long a day is. Was there always a 24 hour day? Could days have been longer at the formation of the planet and solar syatem to say...37 hours or even shorter to say...15 hours? Then later even out to a little more than 24? Just natural curiosity thats all. I'm trying to fugure out things in my mind. Again please no religion arguments.