Steel yourself: It's nearly time to turn our clocks forward an hour for the start of daylight-saving time (DST). This arcane and terrible ritual officially starts on March 13, 2016. At 1:59 a.m. on Sunday morning, our clocks will wind forward an hour to 3:00 a.m. instead of 2:00 a.m. That gives us one less hour of sleep and means the sun will rise an hour later than we're used to.