| Two things, see if you have internet time on. Every week sounds like you have internet time on, and it's contacting a server to get the correct time. The one hour difference is probably that you have DST on when your state doesn't respect it.
if this is so you have your pc clock set to a different time zone and everytime your pc check the time, it sets it to the time zone you have set for the pc
go to control panel and click on date and time and click on the time zone tab and make sure you have it set to the proper time zone
to stop to have your pc check time while on interent, clink on the interenet time tab and uncheck the automatically synchronize interente time
but if you are in the correct time zone this should not matter | 
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