The U.S. will “spring forward” into Daylight Saving Time on Sunday morning (actually late Saturday night) , when we’ll move our clocks ahead one hour, and that means we lose an extra hour of sleep. The payoff, though, is we’ll have more daylight in the evenings heading into spring. The official change will happen across the country at 2 a.m. local time on Sunday, March 11, when the clocks “spring ahead” to 3 a.m. In the fall on Nov. 4, we’ll adjust our clocks back by one hour.
Daylight Saving Time was standardized in 1966 as part of the Uniform Time Act to preserve daylight. The reasons listed included reducing energy use, crime and prevent traffic injuries, according to the United States Department of Transportation. Adjusting the clocks ahead moves one hour of daylight from morning to evening. Not everyone follows Daylight Saving Time. It is not observed in Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands, and most of Arizona. That means the sun will be setting later. DST will end in November.