What is the time difference between Nuuk and Tokyo?

Tokyo is 10 hours ahead of Nuuk. 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 Nuuk?

There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.

Does Nuuk observe daylight saving time?

Yes. Nuuk runs on UTC-2 in winter and UTC-1 in summer. The next change is on 2026-10-24, when clocks go back by 60 minutes.

Does Tokyo observe daylight saving time?

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

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

It is 22:00 in Tokyo, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Nuuk and Tokyo use?

Nuuk uses America/Nuuk, currently UTC-1, and Tokyo uses Asia/Tokyo, currently UTC+9. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Nuuk time to Tokyo time

Right now Tokyo runs 10 hours ahead of Nuuk. That gap is not fixed: it moves when either city changes its clocks.

Convert a time

From

Date

Time

Converted time

—

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 Nuuk, across for Tokyo.

Nuuk	Tokyo
00:00	10:00
01:00	11:00
02:00	12:00
03:00	13:00
04:00	14:00
05:00	15:00
06:00	16:00
07:00	17:00
08:00	18:00
09:00	19:00
10:00	20:00
11:00	21:00
12:00	22:00
13:00	23:00
14:00	00:00next day
15:00	01:00next day
16:00	02:00next day
17:00	03:00next day
18:00	04:00next day
19:00	05:00next day
20:00	06:00next day
21:00	07:00next day
22:00	08:00next day
23:00	09:00next day

Daylight saving time

Nuuk changes its clocks; Tokyo does not. The difference between them therefore shifts by an hour twice a year.

Nuuk

Observes daylight saving time

Standard: UTC-2
Daylight: UTC-1
Next change: 2026-10-24 −60m

Tokyo

Does not observe daylight saving time

Standard: UTC+9

When you can actually talk

There is no hour where both cities are inside a 09:00–18:00 working day. Someone has to move — the nearest workable windows are below.

Nuuk 23:00–08:00Tokyo 09:00–18:00
Nuuk 09:00–18:00Tokyo 19:00–04:00

Reference

The zone identifiers and offsets behind everything above.

	Nuuk	Tokyo
IANA zone	America/Nuuk	Asia/Tokyo
Abbreviation	UTC-1	UTC+9
Standard offset	UTC-2	UTC+9
Daylight offset	UTC-1	—
Clock changes this year	2	0
Country	Greenland	Japan

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

Common questions

What is the time difference between Nuuk and Tokyo?: Tokyo is 10 hours ahead of Nuuk. 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 Nuuk?: There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.
Does Nuuk observe daylight saving time?: Yes. Nuuk runs on UTC-2 in winter and UTC-1 in summer. The next change is on 2026-10-24, when clocks go back by 60 minutes.
Does Tokyo observe daylight saving time?: No. Tokyo stays on UTC+9 all year, so its clocks never move.
If it is midday in Nuuk, what time is it in Tokyo?: It is 22:00 in Tokyo, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Nuuk and Tokyo use?: Nuuk uses America/Nuuk, currently UTC-1, and Tokyo uses Asia/Tokyo, currently UTC+9. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.