About Phoenix Time
Current Local Time in Phoenix, Arizona
Phoenix, Arizona โ the capital and largest city of Arizona โ operates permanently on Mountain Standard Time (MST, UTC-7). This is one of the most important and unique facts about Phoenix: Arizona does NOT observe Daylight Saving Time.
This means Phoenix keeps the same time all year round. No "spring forward" or "fall back." Phoenix is always at UTC-7.
Arizona Non-Daylight Saving Explanation
Why Arizona Doesn't Observe DST
Arizona opted out of Daylight Saving Time in 1968 via the Uniform Time Act. The primary reason: the state is already extremely hot, and adding an extra hour of evening daylight would increase air conditioning costs and energy consumption significantly.
The DST Confusion
Phoenix's time relative to other cities changes during DST seasons:
- US Winter (Standard Time): Phoenix = Los Angeles, 2 hrs behind NY, 1 hr behind Chicago
- US Summer (DST active): Phoenix = SAME as California (PDT), 3 hrs behind NY
- vs New York summer: Phoenix is 3 hours behind
- vs New York winter: Phoenix is 2 hours behind
Navajo Nation Exception
The Navajo Nation territory within Arizona does observe DST, because it spans into Utah and New Mexico which follow DST. The Hopi Reservation (inside the Navajo Nation) does not observe DST, creating a unique "donut hole" time situation.
Desert Climate Timing Insights
- Summer peak heat: 2:00 PM โ 5:00 PM MST (avoid outdoor activities)
- Best outdoor activity time summer: Before 8:00 AM or after 7:00 PM MST
- Monsoon season: July 15 โ September 30 (afternoon/evening storms)
- Comfortable season: October โ April (ideal tourist season)
- Sunrise/sunset: Earlier in winter due to no DST adjustment
- Golf best time: Early morning 6:00 AM โ 10:00 AM in summer
- Hiking best time summer: Before 7:00 AM or after 8:00 PM
Phoenix Business Hours
- Standard business: 8:00 AM โ 5:00 PM MST, MonโFri
- Arizona State government: 8:00 AM โ 5:00 PM MST
- PHX Sky Harbor Airport: Open 24/7
- Financial institutions: 9:00 AM โ 5:00 PM MST
- Restaurants (summer): Often close early on extreme heat days
- Shopping malls: 10:00 AM โ 9:00 PM MST