Daylight Saving Time ends on November 1st, at 2:00a.m., so remember to set your clocks back one hour before going to sleep. You should also change the batteries in your smoke alarms, carbon monoxide (CO) detectors and weather radios. Changing the batteries every six months ensures that you can be notified if a fire or CO emergency happens in your home. One way to remember is this, is to change the batteries with each change of Daylight Saving Time.