HP ProBook 4540s time indicator problem

[rprosperi]

Are you sure you have it set for the correct time zone? If you set it to the wrong time zone (e.g. you are on East coast and PC is set to West coast) and have clock set to internet time sync, it will continue to change back by 3 hours (for example I gave) to set the clock to the 'correct' time (from it's point of view).

HTH