MJ Agee conjectures about the date December 13th in an article found here:
She is the only person I know who has come up with a reason for 12.13 to be marked, as I think it is.
On December 12, 2003 I remember being under a heavy burden to study Bible numbers all day long, at a mad rush. I considered the Lord's presence on that day the heaviest, second only to the December 5-12, 1997 events. things happened during that day I considered really from the Lord and supernatural.
at the end of the day, I got in bed before midnight. I said to myself,
"something has happened. something really important."
I as speaking of something prophetic.
On the morning of December 13th, 2003, I woke up to the clock radio report that Saddam Hussein had been captured. The King of Babylon had fallen - so to speak.
that was it! that was the event that was 'really important' ...but for the life of me, I couldn't figure out why his capture was actually 'that important', and still haven't.
I'm sure that 12.13 was (is) marked for some reason, and MJ Agee postulates her position on it. be sure to read her article.