Emergency Daylight Saving Time Energy Conservation Act

The Emergency Daylight Saving Time Energy Conservation Act (Pub. L. 93–182, enacted December 15, 1973) is a law that made daylight saving time effective year-round for a trial period.^[1] It was intended to decrease energy use during the 1973 oil crisis.

Long titleAn Act to provide for daylight saving time on a year-round basis for a two-year trial period, and to require the Federal Communications Commission to permit certain daytime broadcast stations to operate before local sunrise.

Enactedbythe 93rd United States Congress

Public lawPub. L. 93–182

Quick facts Long title, Enacted by ...

Emergency Daylight Saving Time Energy Conservation Act

Long title	An Act to provide for daylight saving time on a year-round basis for a two-year trial period, and to require the Federal Communications Commission to permit certain daytime broadcast stations to operate before local sunrise.
Enacted by	the 93rd United States Congress
Citations
Public law	Pub. L. 93–182
Legislative history
Introduced in the House of Representatives as H.R. 11324 by Harley Orrin Staggers (D–WV) on November 7, 1973 Committee consideration by House — Interstate and Foreign Commerce Passed the House of Representatives on November 27, 1973 (Roll call) Passed the Senate on December 4, 1973 (Roll call) Signed into law by President Richard Nixon on December 15, 1973

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This trial period began on January 6, 1974, and was intended to end on April 7, 1975. Lawmakers ended the experiment early on October 27, 1974, and did not make the change permanent^[2] due to concerns about darkness on winter mornings.^[3] Under the previous Uniform Time Act, DST began on the last Sunday of April and ended on the last Sunday of October.