Current Local Time in Tucson
Tucson, United States (MST)
Sunday, May 10, 2026
Tucson is located in the America/Phoenix timezone in United States.
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Business hours: 9 AM – 5 PM · Overlap calculated on open
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⏰Time Zone Facts
America/PhoenixData: IANA Time Zone Database
☀️Climate
Semi-arid desert with hot summers (30-40°C) and mild winters (8-20°C). Monsoon season July-September. 350+ sunny days.
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📍About Tucson Time Zone
Tucson is in the America/Phoenix time zone (UTC-7). Tucson observes Daylight Saving Time.
Tucson Time Difference at a Glance
Quick Facts: Tucson Time
- Time Zone: America/Phoenix (UTC-7)
- Daylight Saving: Observed
- Country: United States
- Coordinates: 32.22, -110.93
- Calling Code: +1 520
🌐Time Difference from Tucson
| City | Now | Diff | Overlap |
|---|---|---|---|
| 🌆New York | 7:34 PM | +3h | |
| 🌙London | 12:34 AM | +8h | |
| 🌅Tokyo | 8:34 AM | +16h | |
| 🌙Paris | 1:34 AM | +9h | |
| 🌙Dubai | 3:34 AM | +11h | |
| 🌅Singapore | 7:34 AM | +15h | |
| 🌅Hong Kong | 7:34 AM | +15h | |
| 🌅Shanghai | 7:34 AM | +15h |
❓Frequently Asked Questions
Tucson, Arizona, USA uses Mountain Standard Time (MST, UTC-7) year-round. Arizona (including Tucson) does not observe Daylight Saving Time, so clocks never change. The IANA identifier is America/Phoenix. Tucson stays on MST (UTC-7) permanently — unlike most US cities, there is no summer time shift. The live clock above shows the current Tucson time.
Tucson, Arizona is in the Mountain Time Zone, but it uses Mountain Standard Time (MST, UTC-7) year-round without Daylight Saving Time. The IANA identifier is America/Phoenix. Tucson shares its no-DST schedule with Phoenix and most of Arizona. The Navajo Nation within Arizona does observe DST, but Tucson does not.
No. Tucson, Arizona does not observe Daylight Saving Time. Arizona (except for the Navajo Nation) is permanently on MST (UTC-7) year-round. This makes Tucson unique compared to most US cities — clocks never spring forward or fall back. During US DST season (March–November), Tucson is on the same time as Pacific Daylight Time (PDT, UTC-7) and 1 hour behind Mountain Daylight Time (MDT, UTC-6) states like Colorado.
The time difference between Tucson and Los Angeles changes seasonally. In winter (when California is on PST, UTC-8), Tucson (MST, UTC-7) is 1 hour ahead of Los Angeles. In summer (when California is on PDT, UTC-7), Tucson and Los Angeles are on the same time — both UTC-7. This is because Arizona does not observe DST.
Tucson (MST, UTC-7, no DST) and New York (EST/EDT, UTC-5/-4) differ by 2 hours in winter: New York is 2 hours ahead of Tucson. In summer, when New York is on EDT (UTC-4), New York is 3 hours ahead of Tucson (still on MST, UTC-7). The gap oscillates between 2 and 3 hours depending on the season.
Standard business hours in Tucson are 9:00 AM to 5:00 PM MST, Monday through Friday. Tucson is home to the University of Arizona, Raytheon Missiles & Defense (a major employer), and a growing tech and aerospace sector. The Tucson International Airport and Davis-Monthan Air Force Base support significant defense industry operations. Old Tucson and the Sonoran Desert experience year-round tourism.
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