By Rebecca McCarthy
Daylight Saving Time in 2013 ends in the United States on Sunday, November 3, at 2 a.m.
You will be setting your clock back one hour, following the adage of “spring forward, fall back.” The “extra” hour gives you a chance to catch up on the sleep you lost in March when the clocks moved forward and Daylight Saving Time began.
- Tell Us: What will you do with that "extra" hour of your life?
The federal government doesn’t require states to adopt Daylight Saving Time. Virginia and the District observe it. (Indiana used to ignore Daylight Savings but has gotten on board.)
In an effort to save resources during World War II, the U.S. made daylight saving time mandatory for the whole country. And it was observed the entire year.
Some studies have shown that extending Daylight Saving Time results in a reduction in energy consumption; other studies suggest just the opposite.