Atlanta is 2 hours ahead of Phoenix during standard time, and 3 hours ahead during daylight saving time. Atlanta uses Eastern Time while Phoenix uses Mountain Standard Time year-round (Arizona does not observe DST).
When it's 10:00 AM in Atlanta, it's 8:00 AM in Phoenix (winter) or 7:00 AM in Phoenix (summer).
Best calling time: 11:00 AM - 5:00 PM Atlanta time. This corresponds to 9:00 AM - 3:00 PM in Phoenix during standard time, covering the core business hours.
Phoenix is the capital of Arizona and the fifth-largest city in the United States. Direct flights between Atlanta and Phoenix take approximately 4 hours.