Critics of the policy questioned the government's decision, wondering whether people would simply turn on as many lights in the morning hours instead. In response, the Department of Energy studied the energy savings in 2008. They found that during daylight saving time, U.S. electricity use decreased by 0.5 percent per day, which added up to 1.3 billion kilowatt-hours, enough to power about 122,000 average U.S. homes for a year.
Now, as daylight saving time comes to its November close, energy use will tick up again as the sun sets earlier in the evening.
In the early morning hours of Sunday, Nov. 6, the clocks will be set back an hour, from 2 a.m. to 1 a.m. For an individual who goes to bed at 10 p.m. on Saturday night and awakens eight hours later, they will wake up at 5 a.m. on Sunday morning. It will still be dark, of course, but the sun will come earlier than normal, at 6:30 a.m.