There are no daylight saving in Arizona? O.o I was sure all of america did.
That said, due to the contest plans and risks of Gmail delays, we planned to allow entries sent within the hour past the deadline, though. We set the deadline one hour earlier to make sure people won't wait at the very last minute, risking having Gmail sending their entry too late. In fact, Snake_X entry arrived on my side 15 minutes after he told me he sent it. As of 1 AM it's over, though. Nothing else is getting accepted.
As for some stats:
The first contest entry we received was on September 10th, 2 months and 10 days after the contest announcment and 6 days before the deadline. The next two arrived tuesday. Everything else arrived today, 8 of which arrived in the past 5 hours. I don't think I need to tell you why I was so picky on doing backups lately <.<