Get ready to "spring forward" and give up an extra hour of sleep-- daylight saving time will officially take place this weekend.
At 2 a.m. local time, Sunday, all of the U.S. except for Hawaii, most of Arizona, Puerto Rico, the Virgin Islands, American Samoa, Guam and the Northern Marianas --will observe the change. It will mean trading one hour of sleep for more evening sunshine for those backyard barbecues.
The shift also serves as a reminder to install new batteries in warning devices such as smoke detectors and hazard warning radios.
A federal law signed in 2005 extends daylight saving time by one month, reportedly to save more energy. The time adjustment originally began during World War I with the same intention.
Standard time will return on Nov. 6.