AH
The only way I know of is to download and use an atomic clock program. It links to one of the same via the internet whenever you connect, and makes its adjustments automatically.
Don't know of a way to correct the time automatically without using such a program. I have the same problem here too, and supect the CMOS battery. Even though the PC might be new, the board may have been sitting around for a while...? Having said that, one PC I bought back in the drak ages of '96 is still ticking away, so who knows ?
RGDS