In S1 E1 Crawly (or Crowly) is a fallen angel who took the form of a snake to tempt Eve and Adam to eat a fruit from the Tree of Knowledge. Well, when asked, Crowly says (as Pratchett or Gaiman wrote in the book) he wasn’t fallen as much as vaguely sauntered downward.
In S2E1 Crawly is a non-fallen angel who was the angel who actually created the Earth and heavens and almost forgot to say “Let there be light”.
So, I’m wondering how much time did he have to vaguely saunter downward between those 2 events?