I've already tried playing around with the clock settings. I've solved the problem by setting it to Moscow time instead of European time, however, I'm not quite happy with this solution.

Specifically, how do you change settings when booting? Any other possible solutions (please give specific instructions if you know of another solution).

Thanks.

To check the system clock (in the BIOS) most machines will enter the BIOS using the DELETE key.
After turning the machine on, tap the delete key several times and the machine should take a detour into the BIOS, or ask you for the BIOS password and then detour. The system clock should be displayed and changeable on the first page of the BIOS.