Remember to set your clocks back one hour Saturday night as we return to standard time early Sunday morning. Daylight Saving Time ends at 2 AM Sunday November 3, 2019. It is also a good idea to change the batteries in your smoke detectors and carbon monoxide detectors.
Daylight saving time runs from the second Sunday in March to the first Sunday in November. The U.S. government first enacted daylight saving time in 1918 as a way to conserve coal during World War I. The practice became law in 1966 with the federal Uniform Time Act.
Hawaii and most of Arizona are the only two states that don’t observe daylight saving time. But at least 26 states have considered bills in the past few years to move permanently to either to standard time or daylight saving time.
The Uniform Time Act of 1966 provided the basic framework for alternating between daylight saving time and standard time, which we now observe in the United States. But Congress can’t seem to resist tinkering with it. For example, in 1973 daylight saving time was observed all year, instead of just the spring and summer. The system of beginning DST at 2 AM on the first Sunday in April and ending it at 2 AM on the last Sunday in October was not standardized until 1986. The rules changed again in 2007. DST now begins on the second Sunday of March and ends the first Sunday in November.