No at the end of every month it does that for two hours, its a bug I have to fix, but obviously I'm in no big rush.
The reason it does that is the server is located on the west coast in the Pacific time zone, and deep in the code somewhere I wrote a special subroutine to set the clock back two hours to the real time, which is Minneapolis time of course, but it looks like I didn't get it quite right. Ooopsie.
Funny no one noticed it before, I guess all you kids only get to stay up this late once a year on New Years Eve.