Time Difference Between Arizona Time and Japan
As of 31 August 2026, Japan is 16 hours ahead of Arizona Time. This difference is fixed: neither zone shifts its clocks against the other, so it holds all year.
Tap either box to search any country or city.
Arizona Time, United States
15:34
Mon, Aug 31, 2026
UTC-7 · MST · America/Phoenix
Tokyo, Japan
+16h07:34
Tue, Sep 1, 2026
UTC+9 · Asia/Tokyo
Japan is 16 hours ahead of Arizona Time.
When it is 15:34 in Arizona Time, it is already the next day in Japan.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| Arizona Time | Monday, August 31, 2026 | MSTAmerica/Phoenix | UTC-7 | Not observed |
| Japan | Tuesday, September 1, 2026 | Asia/Tokyo | UTC+9 | Not observed |
Arizona Time: Most of Arizona does not observe daylight saving time, so it stays at UTC-7 all year — the same clock as Mountain Standard Time in winter, but 1 hour behind Mountain Time in summer. The Navajo Nation in Arizona is the exception and does observe it.
Hour by hour: Arizona Time to Japan
Every hour of today in Arizona Time and what it is in Japan. Highlighted rows fall inside Japan working hours (09:00–18:00).
| Arizona Time | Japan |
|---|---|
| 00:00 | 16:00 |
| 01:00 | 17:00 |
| 02:00 | 18:00 |
| 03:00 | 19:00 |
| 04:00 | 20:00 |
| 05:00 | 21:00 |
| 06:00 | 22:00 |
| 07:00 | 23:00 |
| 08:00 | 00:00next day |
| 09:00 | 01:00next day |
| 10:00 | 02:00next day |
| 11:00 | 03:00next day |
| Arizona Time | Japan |
|---|---|
| 12:00 | 04:00next day |
| 13:00 | 05:00next day |
| 14:00 | 06:00next day |
| 15:00 | 07:00next day |
| 16:00 | 08:00next day |
| 17:00 | 09:00next day |
| 18:00 | 10:00next day |
| 19:00 | 11:00next day |
| 20:00 | 12:00next day |
| 21:00 | 13:00next day |
| 22:00 | 14:00next day |
| 23:00 | 15:00next day |
Best time to call or meet
Overlapping working hours
17:00–18:00 in Arizona Time (09:00–10:00 in Japan)
Both places are inside 09:00–18:00 for 1 hour a day. Anything in this window works without asking anyone to stay late.
Reasonable calling hours
16:00–21:00 in Arizona Time (08:00–13:00 in Japan)
Both people are awake and available between 08:00 and 21:00 local time during this window.
When this difference changes
Neither Arizona Time nor Japan changes its clocks, so the difference of 16 hours stays the same all year.
Planning something with more than two places?
Adding a third city usually kills the obvious answer. The Meeting Time Finder takes up to five cities at once and shows only the hours that work for everybody.
Arizona Time and Japan: common questions
What is the time difference between Arizona Time and Japan?
Japan is 16 hours ahead of Arizona Time, and this does not change during the year because the difference between these two zones is fixed.
When it is 9:00 AM in Arizona Time, what time is it in Japan?
It is 01:00 AM in Tokyo, Japan. Use the time field in the calculator above to check any other hour.
Is Japan ahead of or behind Arizona Time?
Japan is ahead of Arizona Time by 16 hours at the moment. In practical terms, the working day in Japan starts and ends earlier in Arizona Time terms.
Do Arizona Time and Japan observe daylight saving time?
Neither Arizona Time nor Japan observes daylight saving time, so the difference stays at 16 hours all year.
What is the best time to call Japan from Arizona Time?
Working hours overlap between 17:00 and 18:00 Arizona Time time, which is 09:00 to 10:00 in Japan. Calls inside that window reach both sides during the normal working day.
Related comparisons
Local dates shown for Arizona Time, United States (UTC-7) and Tokyo, Japan (UTC+9) were generated on Monday, August 31, 2026 UTC and refresh in your browser.