Early to bed, and early to rise, makes a person healthy, wealthy and wise, goes the popular wisdom. If you believe that, then this is your weekend as clocks change and most of the U.S. falls back an hour.
The change, officially the end of Daylight Saving Time, comes at 2 a.m. Sunday, when the clocks fall back to 1 a.m. In theory this should give everyone an extra hour of sleep, though how many hours people sleep is often the result of factors other than the clock. The changeover also takes place on the weekend, so what is a rest day can be used in part to offset the chronological changes that for some are akin to jet lag or traveling across a time zone.
Residents of Hawaii, most of Arizona and some U.S. territories don’t have to change their clocks because they never moved them forward in the spring. Those areas do not observe Daylight Saving Time so the shift back to standard never takes place.