If you're weary of short winter days, take heart: Daylight saving time begins Sunday, March 8, when most Americans will set their clocks ahead one hour — or, as the maxim goes, spring forward. It'll likely be dark when you wake up, but you'll also get an extra hour of daylight
Sunrise and sunset will be about 1 hour later.
Daylight saving time has been around since World War I. But it became the law of the land more than 50 years ago with the Uniform Time Act of 1966, though the exact dates — now the second Sunday in March and the first Sunday in November — have changed some over the years. Arizona cited its hot climate in getting an exception, and Hawaii cited its tropical latitude, which means there isn't much variation in daylight in the summer and winter months.