What is the time difference between Dubai and Chatham Islands?

Chatham Islands is 8 hours 45 minutes ahead of Dubai. 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 Chatham Islands from Dubai?

Between 09:00–09:15 in Dubai, which is 17:45–18:00 in Chatham Islands. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Dubai observe daylight saving time?

No. Dubai stays on UTC+4 all year, so its clocks never move.

Does Chatham Islands observe daylight saving time?

Yes. Chatham Islands runs on UTC+12:45 in winter and UTC+13:45 in summer. The next change is on 2026-09-27, when clocks go forward by 60 minutes.

If it is midday in Dubai, what time is it in Chatham Islands?

It is 20:45 in Chatham Islands, 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 Dubai and Chatham Islands use?

Dubai uses Asia/Dubai, currently UTC+4 (GST), and Chatham Islands uses Pacific/Chatham, currently UTC+12:45 (CHAST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Dubai time to Chatham Islands time

Chatham Islands is 8 hours 45 minutes ahead of Dubai right now, so midday in Dubai lands in the evening in Chatham Islands.

Convert a time

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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

Every hour of a day in Dubai, and what the clock reads in Chatham Islands at that same moment.

Dubai	Chatham Islands
00:00	08:45
01:00	09:45
02:00	10:45
03:00	11:45
04:00	12:45
05:00	13:45
06:00	14:45
07:00	15:45
08:00	16:45
09:00	17:45
10:00	18:45
11:00	19:45
12:00	20:45
13:00	21:45
14:00	22:45
15:00	23:45
16:00	00:45next day
17:00	01:45next day
18:00	02:45next day
19:00	03:45next day
20:00	04:45next day
21:00	05:45next day
22:00	06:45next day
23:00	07:45next day

Daylight saving time

Chatham Islands changes its clocks; Dubai does not. The difference between them therefore shifts by an hour twice a year.

Dubai

Does not observe daylight saving time

Standard: UTC+4

Chatham Islands

Observes daylight saving time

Standard: UTC+12:45
Daylight: UTC+13:45
Next change: 2026-09-27 +60m

When you can actually talk

The window is 15 minutes wide — 09:00–09:15 in Dubai, 17:45–18:00 in Chatham Islands.

Dubai 09:00–09:15Chatham Islands 17:45–18:00

Reference

The zone identifiers and offsets behind everything above.

	Dubai	Chatham Islands
IANA zone	Asia/Dubai	Pacific/Chatham
Abbreviation	GST	CHAST
Standard offset	UTC+4	UTC+12:45
Daylight offset	—	UTC+13:45
Clock changes this year	0	2
Country	United Arab Emirates	New Zealand

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

Common questions

What is the time difference between Dubai and Chatham Islands?: Chatham Islands is 8 hours 45 minutes ahead of Dubai. 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 Chatham Islands from Dubai?: Between 09:00–09:15 in Dubai, which is 17:45–18:00 in Chatham Islands. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Dubai observe daylight saving time?: No. Dubai stays on UTC+4 all year, so its clocks never move.
Does Chatham Islands observe daylight saving time?: Yes. Chatham Islands runs on UTC+12:45 in winter and UTC+13:45 in summer. The next change is on 2026-09-27, when clocks go forward by 60 minutes.
If it is midday in Dubai, what time is it in Chatham Islands?: It is 20:45 in Chatham Islands, 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 Dubai and Chatham Islands use?: Dubai uses Asia/Dubai, currently UTC+4 (GST), and Chatham Islands uses Pacific/Chatham, currently UTC+12:45 (CHAST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.