The Emergency Daylight Saving Time Energy Conservation Act () is a law that made daylight saving time effective year-round for a trial period. It was intended to decrease energy use during the 1973 oil crisis.
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 due to concerns about darkness on winter mornings. Under the previous Uniform Time Act, DST began on the last Sunday of April and ended on the last Sunday of October.
See also Permanent time observation in the United States Sunshine Protection Act
External links Full text and legislative history of the Act
References