Daylight-saving time is 3 weeks earlier than usual this year as directed by the federal energy bill that passed in 2005.

Tony Alessandri with the computer support company the Geek Squad says it has the potential to create a lot of problems with your computer’s operating system and calendar. 

"It definitely can. You may have some appointment times that might be adjusted by a difference of an hour."

But he says the problem isn’t too hard to fix. 

"The easiest way to counteract that would be – double check your settings on your time zones on your computer and check up with the appointments that you’ve made with people."  

Alessandri says you can either manually adjust the clock on your PC or you can download updated software from Microsoft, Apple and other computer companies.

Blackberry, PDA or SmartPhone users should visit the manufacturer’s website for instructions on how to adjust to the new daylight-saving time.