Time zone in Tucson
- Time zone: Mountain Standard Time
- UTC offset right now: UTC−7
- IANA time zone ID: America/Phoenix
- Country: United States
Daylight saving time
Tucson does not observe daylight saving time, so the clock stays on Mountain Standard Time (UTC−7) all year. That makes the gap to places that do switch, like New York or London, change by an hour twice a year.
Good to know
Arizona has stayed on Mountain Standard Time all year since 1968, so Phoenix matches Los Angeles in summer and Denver in winter. The Navajo Nation in the state's northeast is the exception and does change its clocks.
Tucson compared to other cities
| City | Time now | vs. Tucson |
|---|---|---|
| New York | — | 3 hrs ahead |
| Los Angeles | — | Same time |
| Chicago | — | 2 hrs ahead |
| London | — | 8 hrs ahead |
| Paris | — | 9 hrs ahead |
| Dubai | — | 11 hrs ahead |
| Mumbai | — | 12 hrs 30 min ahead |
| Tokyo | — | 16 hrs ahead |
Planning a call? Use the time zone converter to check any time of day.
Calling Tucson
Office hours in Tucson and New York overlap for about 5 hours a day, from 12 PM to 5 PM in New York (9 AM to 2 PM in Tucson).
Normal office hours in Tucson and London don't overlap. The most workable window is 3 PM to 10 PM in London, which is 7 AM to 2 PM in Tucson, with one side starting early or finishing late.
When it's 9 AM in Tucson today, it's New York: Mon 12:00 PM · London: Mon 5:00 PM · Dubai: Mon 8:00 PM · Tokyo: Tue 1:00 AM · Sydney: Tue 3:00 AM.