This weekend, we get to reset our clocks again as the U.S. returns to daylight savings time. The concept is that people won’t need their lights on at home until one hour later in the evening. It’s part of a phased move designed to conserve electricity and save an estimated 300,000 barrels of oil a year. In the process, however, you will have an hour less to sleep Sunday morning. So set those clocks ahead one hour before you go to bed Saturday night and be ready to use you headlights just a little longer when you go to work Monday morning.