Daylight Savings Time ends Sunday.
That means you should set your clocks back one hour before you go to bed Saturday night. The old adage, Spring Forward, Fall Back, comes into play. The end of Daylight Savings Time usually means you will get an extra hour of sleep Sunday but the change may upset the balance of your internal body clock. It will be dark later in the morning and the change may even make it more difficult to fall asleep.
Baja California will end Daylight Savings Time Sunday but Arizona will stay with Daylight Standard Time and will remain on Mountain Standard Time, an hour later than California.