Not only is this Friday the 13th, but our own Dr. Schmidt pointed out to us that today will be 1234567890 in Unix Time. Specifically, February 13, 2009, at 23:31:30 UTC, is UNIX time 1234567890. That is, February 13, 2009 at 17:31:30 Norman, OK Time.
The countdown is here.
Most every computer which runs some version of unix (so most servers on the internet, Linux and Mac OS X) keeps track of time using Unix Time. What is Unix Time? It’s the number of seconds since 00:00:00 UTC on January 1, 1970 (not counting leap seconds). If you’re disappointed that your Y2K bunker didn’t get any use, then you can hold out hope for Unix Time and the Y2K38 bug. Or if you want to show that you’re both a Unix Geek and a End-of-the-Worlder, you can get this T-shirt here.

You're not paranoid, you're prepared.