It's that time again to set your clocks back an hour or "fall back" before you head to bed Saturday night.

Daylight Saving Time will be ending at 2 a.m. Sunday, Nov. 6. The change means sunrise will begin at 6:40 a.m. Sunday, and sunset will begin at 5:04 p.m. Next week, commuters can anticipate the evening westbound commute into the sun a bit easier.

According to the National Atlas, Daylight Saving Time started in the United States during World War I as an effort to conserve energy. The time change was to better align sunrise and sunset with people’s normal waking hours. It was instituted again during World War II. Congress passed the Uniform Time Act, which standardized this, in 1966.