Daylight Savings Time 

Daylight saving time then ends on the first Sunday in November, when clocks are moved back an hour at 2 a.m. local daylight time (so they will then read 1 a.m. local standard time). In 2021, DST begins on March 14 and ends on Nov. 7 in the U.S., when you'll set the clock back an hour and the cycle will begin again