The Arizona time zone is the Mountain Standard Time (MST) zone. Other states included in this time zone are Utah, Colorado, New Mexico, Wyoming, Idaho and Montana. The Mountain Standard Time zone is 7 hours behind UTC (Universal Time, Coordinated). See what time it is in Arizona right now. Arizona does not observe Daylight Saving Time (mid-March through early November). We do not spring Forward in Phoenix -- we always stay on Mountain Standard Time.