[HELP REQUEST] Date&time Constant error. Urgent

Hi, since the arriving of the new year i have been gettin some errors about the date and time...but not some normal error that may pop up and u hit cancel and ignore or somethin and it wont bug u anymore...since the time of every second is invalid according to the computor, i keep gettin errors every second...I have tried changin the date in so many forms backwards and forwards so no need to point that out...i even took the time to do a complete scan on the pc to see if it would've caught any virus or somethin...but still im clean and it continues =/
If anyone has had it and/or knows how to fix it, i would be rlly gratefull since this is rlly annoying and it lags my pc like hell =/

SS:

Have you tried a System Restore? Safe Mode?