I don't think this is a
SPOILER since I've read the book and didn't even notice it, but...
In researching reviews/info on King's 11-22-63 book, I found a few links questioning the meaning of dates on the last page of the book. These dates appear on final page:
January 2 2009- December 18, 2010 Sarsota, Flordia/Lovell, Maine.”Checking my copy (hard copy) it is on page 842. It's been suggested that King does that at the end of all his books indicating the time it took to write the book. I don't read all of King's books (usually see the movie) Still, a little fun mystery to fit the topic I guess.
Or does he always do this?