(PIX11/CNN) — This weekend, remember to set your clocks back one hour for the end of Daylight Saving Time.
Daylight Saving started this year on Mar. 9, and will conclude this Sunday, Nov. 2 at 2 a.m.
That means an extra hour of sleep!
Daylight saving came about as a way to utilize natural light and conserve fuel and energy.
Timeline of Daylight Saving Time in the U.S.:
1784 – The idea of daylight saving is first conceived by Benjamin Franklin.
1914-1918 – Britain goes on DLS during World War I.
March 19, 1918 – The Standard Time Act establishes time zones and daylight savings. Daylight savings is repealed in 1919, but continues to be recognized in certain areas of the U.S.
1945-1966 – There is no federal law regarding Daylight Saving Time.
1966 – The Uniform Time Act of 1966 establishes the system of uniform Daylight Saving Time throughout the U.S. The dates are the last Sunday in April to the last Sunday in October. States can exempt themselves from participation.
1974-1975 – Congress extends DLS in order to save energy during the energy crisis.
1986-2006 – Daylight Saving Time begins on the first Sunday in April and ends on the last Sunday in October.
August 8, 2005 – President Bush signs the Energy Policy Act of 2005 into law. Part of the act will extend Daylight Saving Time starting in 2007, from the second Sunday in March to the first Sunday in November.
2007 – Under the new laws, all of Indiana now observes Daylight Saving Time, where only certain areas of the state did before.
Exceptions in the U.S.:
In the US, Hawaii and most of Arizona do not follow DLS.
The U.S. territories of Guam, Puerto Rico, Virgin Islands and American Samoa also do not observe DLS.
What countries follow Daylight Saving Time?
About 70 countries around the world observe DLS.
Many countries near the equator do not adjust their clocks for daylight saving.
Neither China nor Japan observe DLS.
Some countries refer to “Daylight Saving Time” as “Summer Time.”
Some studies suggest that Daylight Saving Time can be hazardous to your health. Losing or gaining just one more our of sleep can disrupt someone’s sleep cycle, leading to anxiety and stress.