It's time to set clocks back one hour!
Daylight Saving Time in the United States ended at 2 a.m. Sunday. Clocks should be turned back one hour in all states except Arizona and Hawaii.
Firefighters also say it is an excellent time to change the batteries in smoke alarms and carbon monoxide detectors.
The New York City Fire Department says 30 seconds and 9 volts can save your life.
Check out five fast facts about daylight saving time.