Tucson runs on UTC−7 (MST) every day of the year, with no daylight saving time.
Tucson and your time
Tucson at a glance
| Country | United States |
|---|---|
| Region | Arizona |
| Time zone | America/Phoenix |
| Abbreviation now | MST |
| UTC offset now | UTC−7 |
| Daylight saving time | Not observed |
| Coordinates | 32.22° N, 110.93° W |
Which time zone Tucson uses
Local time in Tucson is UTC−7 year round, under the America/Phoenix rules. Clocks have not changed for the seasons here since at least 1970.
Check the season when booking with the capital: Washington D.C. is 2 hours ahead of Tucson in January and 3 hours ahead in July.
Clock changes in Tucson, 2026 and 2027
No clock changes are scheduled in Tucson for 2026 or 2027.
Tucson time compared with major cities
A 9:00 AM start in Tucson is 4:00 PM in London, 3:00 AM (next day) in Sydney and 8:00 AM in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| Washington D.C. | --:-- | 2 h ahead | 2 h ahead | 3 h ahead | 6 h |
| Los Angeles | --:-- | 1 h behind | 1 h behind | Same time | 7 h |
| London (United Kingdom) | --:-- | 7 h ahead | 7 h ahead | 8 h ahead | 1 h |
| Paris (France) | --:-- | 8 h ahead | 8 h ahead | 9 h ahead | None |
| Dubai (United Arab Emirates) | --:-- | 11 h ahead | 11 h ahead | 11 h ahead | None |
| Mumbai (India) | --:-- | 12 h 30 min ahead | 12 h 30 min ahead | 12 h 30 min ahead | None |
| Singapore | --:-- | 15 h ahead | 15 h ahead | 15 h ahead | None |
| Tokyo (Japan) | --:-- | 16 h ahead | 16 h ahead | 16 h ahead | None |
| Sydney (Australia) | --:-- | 18 h ahead | 18 h ahead | 17 h ahead | None |
| UTC | --:-- | 7 h ahead | 7 h ahead | 7 h ahead | 1 h |
Because Tucson keeps one offset all year, any change in the gap comes from the other city’s daylight saving time. Compare the January and July columns.
Shared office hours counts the time when the clock reads between 9 AM and 5 PM in both cities on the same day.
Daylight in Tucson
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Over the year, daylight in Tucson grows from 10 hours 2 minutes to 14 hours 16 minutes and back, a swing of 4 hours 14 minutes.
Daylight through the year in Tucson
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 6:27 AM | 6:35 PM | 12 h 8 min |
| June solstice | June 21 | 5:18 AM | 7:34 PM | 14 h 16 min |
| September equinox | September 22 | 6:12 AM | 6:20 PM | 12 h 8 min |
| December solstice | December 21 | 7:21 AM | 5:23 PM | 10 h 2 min |
Clock time and sun time in Tucson
Tucson lies close to the centre of its time zone, so the sun is highest at about 12:25 PM on standard time, close to clock noon.
Places close to Tucson
All the places listed below keep the same time as Tucson.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Nogales (Mexico) | 102 km (63 mi) | --:-- | Same time |
| Chandler | 148 km (92 mi) | --:-- | Same time |
| Mesa | 158 km (98 mi) | --:-- | Same time |
| Scottsdale | 170 km (105 mi) | --:-- | Same time |
| Phoenix | 173 km (108 mi) | --:-- | Same time |
| Glendale | 188 km (117 mi) | --:-- | Same time |
| Surprise | 204 km (127 mi) | --:-- | Same time |
Same time now, different rules
These places read the same time as Tucson today but follow different rules, so they can drift apart when clocks change.
More cities in United States
- New York
- Los Angeles
- Chicago
- Houston
- Phoenix
- Philadelphia
- San Antonio
- San Diego
- The Bronx
- Dallas
- Jacksonville
- Fort Worth
All time zones and cities in the United States
Tools for time in Tucson
- Convert a time to or from Tucson: pick a date and time and see it in every city on your list.
- Add Tucson to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Tucson and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Tucson in?
Tucson uses the America/Phoenix time zone, which is UTC−7 (MST) all year.
Does Tucson use daylight saving time?
No. Tucson stays on UTC−7 all year, so the time difference to places without daylight saving time never changes.
What is the time difference between Tucson and London?
Tucson is 7 hours behind London in January and 8 hours behind London in July, because London moves its clocks for daylight saving time and Tucson does not.
Is Tucson on the same time as Washington D.C.?
Not all year. Washington D.C. is 2 hours ahead of Tucson in January and 3 hours ahead in July.
How long is the longest day in Tucson?
About 14 hours 16 minutes, around the June solstice. The shortest day, around the December solstice, has about 10 hours 2 minutes of daylight.
Time zone rules: IANA tz database, version 2026e. Place names and coordinates: GeoNames. Sunrise and sunset are calculated from the coordinates and can differ by a minute or two from local almanacs.