Tonight, daylight saving time comes to an end – clocks fall back one hour at 2 a.m., giving most of us an extra hour of sleep. Sunrise and sunset will shift earlier, bringing brighter mornings but darker evenings as we head into winter.

• DFW Sunrise Sunday Morning: 6:47 am
• DFW Sunset Sunday Evening: 5:35 pm

It’s also a great reminder to check the batteries in your smoke alarms, carbon monoxide detectors, and weather radio.

Daylight saving time began in the U.S. during World War I as a fuel-conservation measure, was briefly revived in World War II, and became standardized nationwide with the Uniform Time Act of 1966. Though intended to save energy, studies show minimal impact today. In recent years, growing frustration with the twice-yearly clock changes has fueled bipartisan efforts in Congress to make daylight saving time permanent, with bills like the Sunshine Protection Act passing the Senate in 2022 but stalling in the House.