It's time to adjust your clocks (well, maybe not in Arizona!). Sunday is the day to set your clocks back one hour depending on where you live.
Sometimes it gets a bit confusing when you travel from state to state in the Southwest. It gets more than a bit confusing when Day Light Savings is in effect as Arizona does not observe Daylight Savings Time (well, except on the Navajo Reservation). Here are links for the current time in key cities in the Southwest just so you don't get too confused.