Time Difference Between Japan and Arizona Time
As of 31 August 2026, Arizona Time is 16 hours behind Japan. This difference is fixed: neither zone shifts its clocks against the other, so it holds all year.
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Tokyo, Japan
07:34
Tue, Sep 1, 2026
UTC+9 · Asia/Tokyo
Arizona Time, United States
-16h15:34
Mon, Aug 31, 2026
UTC-7 · MST · America/Phoenix
Arizona Time is 16 hours behind Japan.
When it is 07:34 in Japan, it is already the previous day in Arizona Time.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| Japan | Tuesday, September 1, 2026 | Asia/Tokyo | UTC+9 | Not observed |
| Arizona Time | Monday, August 31, 2026 | MSTAmerica/Phoenix | UTC-7 | 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: Japan to Arizona Time
Every hour of today in Japan and what it is in Arizona Time. Highlighted rows fall inside Arizona Time working hours (09:00–18:00).
| Japan | Arizona Time |
|---|---|
| 00:00 | 08:00prev day |
| 01:00 | 09:00prev day |
| 02:00 | 10:00prev day |
| 03:00 | 11:00prev day |
| 04:00 | 12:00prev day |
| 05:00 | 13:00prev day |
| 06:00 | 14:00prev day |
| 07:00 | 15:00prev day |
| 08:00 | 16:00prev day |
| 09:00 | 17:00prev day |
| 10:00 | 18:00prev day |
| 11:00 | 19:00prev day |
| Japan | Arizona Time |
|---|---|
| 12:00 | 20:00prev day |
| 13:00 | 21:00prev day |
| 14:00 | 22:00prev day |
| 15:00 | 23:00prev day |
| 16:00 | 00:00 |
| 17:00 | 01:00 |
| 18:00 | 02:00 |
| 19:00 | 03:00 |
| 20:00 | 04:00 |
| 21:00 | 05:00 |
| 22:00 | 06:00 |
| 23:00 | 07:00 |
Best time to call or meet
Overlapping working hours
09:00–10:00 in Japan (17:00–18:00 in Arizona Time)
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
08:00–13:00 in Japan (16:00–21:00 in Arizona Time)
Both people are awake and available between 08:00 and 21:00 local time during this window.
When this difference changes
Neither Japan nor Arizona Time 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.
Japan and Arizona Time: common questions
What is the time difference between Japan and Arizona Time?
Arizona Time is 16 hours behind Japan, and this does not change during the year because the difference between these two zones is fixed.
When it is 9:00 AM in Japan, what time is it in Arizona Time?
It is 05:00 PM in Arizona Time, United States. Use the time field in the calculator above to check any other hour.
Is Arizona Time ahead of or behind Japan?
Arizona Time is behind Japan by 16 hours at the moment. In practical terms, the working day in Arizona Time starts and ends later in Japan terms.
Do Japan and Arizona Time observe daylight saving time?
Neither Japan nor Arizona Time observes daylight saving time, so the difference stays at 16 hours all year.
What is the best time to call Arizona Time from Japan?
Working hours overlap between 09:00 and 10:00 Japan time, which is 17:00 to 18:00 in Arizona Time. Calls inside that window reach both sides during the normal working day.
Related comparisons
Local dates shown for Tokyo, Japan (UTC+9) and Arizona Time, United States (UTC-7) were generated on Monday, August 31, 2026 UTC and refresh in your browser.