Emergency Daylight Saving Time Energy Conservation Act
1973 United States law temporarily making Daylight Saving Time permanent year-round
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.
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
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 two-year trial period.[1]
This trial period was intended to begin on January 6, 1974, and ended on April 7, 1975, but 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]