^Because of his post I called to verify. I did this because when I've called Disney to get answers to questions (I've been designated the planner for our family get together) I've been told 499 days from the day of check-in multiple times. So I called again just to be sure (I'm quite OCD that way, guess that's why they made me the planner...:ROFLOL

and the rep I talked to verified with her supervisor that it is from the day of check-in. I guess now it will be verified once and for all when I go to book on Jan 20th.