By Ada Wood, CNN In the fall, waking up to realize Daylight Saving Time ended overnight might feel great â especially when you get that extra hour of sleep. In the spring, the transition is reversed, with the panic of waking up unexpectedly an hour late for whatever is scheduled that morning. Daylight Saving Time starts on the second Sunday in March at 2 a.m. and ends on the first Sunday in Nov. at 2 a.m in the United States. This year, that's March 14, when we set our clocks ahead one hour, through Nov. 1, when we set them back one hour. And those of you in Europe aren't exempt, but you will have to wait two more weeks for March 28.