Actually, it depends upon the person trying to actually discount any theory of creation.
1. How long were Adamand Eve in the garden of Eden before their initial foray into disobedience?
2. After the 'fall', how long before their first-born child?
You can't have any accuracy without accounting for the first question, and even if you measure from the second, you've already added in false data because you missed the first.
As for the rest of your statement...your continual attempts at humor for things you either disbelieve, or don't understand, are getting tiresome.