I have just bought six Samsung NP 350E7C Laptops running Windows 8 all in a line being installed....
Something is not quite right with the date and time.
Start off correct time ( I have one with Internet time turned off so that is not the problem)
start Windows update ....download... install usually process
time reads correct as it progresses......
restart as instructed
Time now reset to the time Windows update started ( yesterday evening was displayed first thing this morning)
Although I reset the time every subsequent Windows update does the same
Very weird ( I don't think it's the RTC as time just stops and not reset to date in the past)