HOW DO WE SHIFT A TIME UPON MY COMPUTER?

The mechanism time usually turns with the time shift upon the own, though this year it didn't. we don't know how to do it. please explain in specifics. thank you Since we unsuccessful to discuss which handling system, I'll pretence XP? You need to download as well as implement the DST (daylight assets time) vegetable patch from Microsoft. See couple below. You didn't download illumination