Nothing says “winter is coming” quite like turning the clocks back an hour in the fall.
That’s right, the end of daylight saving time is just around the corner, whether you’re ready for one less hour of sunlight or not.
Daylight saving time begins each year on the second Sunday in March and ends on the first Sunday in November, according to the National Institute of Standards and Technology.
This year, the clocks rolled forward an hour at 2 a.m. on March 13 and will roll back at 2 a.m. on Nov. 6.
Introduced as law in 1918, daylight saving time was controversial even back then, according to the United States Naval Observatory. It was repealed in 1919, but made its resurgence during World War II, when it was observed continuously from Feb. 9, 1942, until Sept. 30, 1945.
It wasn’t until 1966 that the country’s current version of daylight saving time was established with the passage of the Uniform Time Act. The legislation also gives states the right to opt out of daylight saving time. States and territories that do not observe daylight saving time include Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands and most of Arizona.
Although many bemoan daylight saving time, especially in the spring when we lose an hour of sleep, the U.S. Department of Transportation says changing the clocks serves several purposes, including saving energy by not needing to turn lights on early in the evenings; preventing traffic injuries by giving people more time during the day to commute and run errands; and reducing crime. Although it’s nice to get an extra hour of sleep when the clocks fall back, too.