"At 11:31:30pm UTC on Feb 13, 2009, Unix time will reach 1,234,567,890.
Where will you be at this momentous second?" - from Bell Labs
In case you were curious, UNIX time is actually the count of the number of seconds that have elapsed since midnight on January 1st, 1970 (Called the UNIX Epoch). It's somewhat of an odd way to keep track of time, but it's actually really effective for helping to tell exactly how much time has elapsed between two points by converting both times into UNIX time then subtracting. Doing things this way also avoids most issues associated with the Y2K bug; however, there will still be an issue with UNIX time in 2038, but I won't go into that because I'll reveal just what a geek I really am in doing so.
Coincidentally, this will be happening on Friday the 13th... kind of spooky, isn't it?