I'm an idiot. A day isn't a revolution around the sun. Nevermind.
Speaking of that. Ask a Jew how they count "days" in the Bible. Many people don't understand that the three days Jesus spent in the tomb was counted via the Jewish calendar. I believe "days" start either at sunset or midnight in that regard. Perhaps someone can answer that. That is why "three days" is accurate when it comes to Friday evening to Sunday morning of ressurection day...actually Thursday evening to Friday evening; Fri to Sat; Sat to Sun.
Actually, I thought you made a good point about the "day" issue, even though you were slightly skewed in your description.
Before the sun was created, there MUST have been a different definition of "day" applied to those "days", because by no definition of the word "day" can there NOT be light from the sun. (excuse the double negative)
Thanks, you've given me something to think about.