System time off by a small amount

On Karmic (9.10), my system time is currently off by 17 minutes, e.g. when I type date on the terminal I get Thu Jan 6 16:22:29 CST 2011 while the correct time is 16:05pm. I went through the standard time set and cannot fix this.

If it were off by a multiple of an hour I would blame timezone or daylight savings time settings, but 17 minutes, I have no idea.

Thanks

It may be your BIOS time. "Your computer has two timepieces; a battery-backed one that is always running (the hardware, BIOS, or CMOS clock), and another that is maintained by the operating system currently running on your computer (the system clock). The hardware clock is generally only used to set the system clock when your operating system boots, and then from that point until you reboot or turn off your system, the system clock is the one used to keep track of time."