If you've enjoyed the extra daylight hours this fall, you'll need to start readjusting to early darkness.
Daylight saving time officially ends at 2 a.m. on Sunday, Nov. 4.
Remember, you’ll “fall back” and set your clocks back one hour. Many electronic devices automatically adjust when daylight saving time begins or ends.
There is some debate, but the concept seems to have been first mentioned by Benjamin Franklin in an essay titled “An Economical Project for Diminishing the Cost of Light” in 1784.
In 1918, Congress placed the United States on daylight saving time to conserve resources for the war efforts. The law was repealed due to unpopularity in 1919.
In 1942, Congress reinstated it due to World War II. The clock was advanced one-hour, year-round until 1945.
From 1946 to 1966, there was no formal law regarding daylight saving time. Confusion in the transportation and broadcasting industries ensued and in 1966, Congress passed the Uniform Time Act, dictating that daylight saving would begin on the last Sunday in April and run through the last Sunday of October. However, local authorities were permitted to pass ordinances to become exempt.
In 1986, the law was amended to lengthen daylight saving, starting it in the first Sunday of April.
Throughout the early to mid 1970s, the laws changed again due to the Arab Oil Embargo.
President Ronald Reagan reinstated the first Sunday in April to the last Sunday in October time frame in 1986.
In 2005, the Energy Policy Act contained language to extend daylight saving time yet again, beginning in 2007, and since then daylight saving has run from the second Sunday in March through the first Sunday in November.
States and territories still reserve the right to choose not to follow daylight saving, and until 2006, half of the State of Indiana honored daylight saving, while the other half did not.
Hawaii, Guam, Puerto Rico, the Virgin Islands and American Samoa do not observe daylight saving time. Arizona (aside from the Navajo Indian Reservation) is the only continental U.S. state that currently does not change its clocks two times a year.
When you change your clocks in the fall and spring, it’s also a good time to change smoke detector batteries and check to make sure device are in working order.
Daylight saving time begins again on March 10, 2013.