What is the time difference between Phoenix and Tokyo?

Tokyo is 16 hours ahead of Phoenix. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call Tokyo from Phoenix?

Between 17:00–18:00 in Phoenix, which is 09:00–10:00 in Tokyo. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Phoenix observe daylight saving time?

No. Phoenix stays on UTC-7 all year, so its clocks never move.

Does Tokyo observe daylight saving time?

No. Tokyo stays on UTC+9 all year, so its clocks never move.

If it is midday in Phoenix, what time is it in Tokyo?

It is 04:00 in Tokyo, and already the following day. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.

Which time zones do Phoenix and Tokyo use?

Phoenix uses America/Phoenix, currently UTC-7 (MST), and Tokyo uses Asia/Tokyo, currently UTC+9. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Phoenix time to Tokyo time

Tokyo is 16 hours ahead of Phoenix right now, so midday in Phoenix lands in the small hours in Tokyo.

Convert a time

From

Date

Time

Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

The whole day mapped across: read down the left for Phoenix, across for Tokyo.

Phoenix	Tokyo
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
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

Daylight saving time

Neither Phoenix nor Tokyo changes its clocks, so the difference between them is the same every day of the year.

Phoenix

Does not observe daylight saving time

Standard: UTC-7

Tokyo

Does not observe daylight saving time

Standard: UTC+9

When you can actually talk

The window is 1 hour wide — 17:00–18:00 in Phoenix, 09:00–10:00 in Tokyo.

Phoenix 17:00–18:00Tokyo 09:00–10:00

Reference

The zone identifiers and offsets behind everything above.

	Phoenix	Tokyo
IANA zone	America/Phoenix	Asia/Tokyo
Abbreviation	MST	UTC+9
Standard offset	UTC-7	UTC+9
Daylight offset	—	—
Clock changes this year	0	0
Country	United States	Japan

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Phoenix and Tokyo?: Tokyo is 16 hours ahead of Phoenix. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call Tokyo from Phoenix?: Between 17:00–18:00 in Phoenix, which is 09:00–10:00 in Tokyo. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Phoenix observe daylight saving time?: No. Phoenix stays on UTC-7 all year, so its clocks never move.
Does Tokyo observe daylight saving time?: No. Tokyo stays on UTC+9 all year, so its clocks never move.
If it is midday in Phoenix, what time is it in Tokyo?: It is 04:00 in Tokyo, and already the following day. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.
Which time zones do Phoenix and Tokyo use?: Phoenix uses America/Phoenix, currently UTC-7 (MST), and Tokyo uses Asia/Tokyo, currently UTC+9. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.