What is the time difference between Reykjavík and Dubai?

Dubai is 4 hours ahead of Reykjavík. 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 Dubai from Reykjavík?

Between 09:00–14:00 in Reykjavík, which is 13:00–18:00 in Dubai. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Reykjavík observe daylight saving time?

No. Reykjavík stays on UTC+0 all year, so its clocks never move.

Does Dubai observe daylight saving time?

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

If it is midday in Reykjavík, what time is it in Dubai?

It is 16:00 in Dubai, on the same calendar date. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.

Which time zones do Reykjavík and Dubai use?

Reykjavík uses Atlantic/Reykjavik, currently UTC+0 (GMT), and Dubai uses Asia/Dubai, currently UTC+4 (GST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Reykjavík time to Dubai time

Right now Dubai runs 4 hours ahead of Reykjavík. 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

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

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

Daylight saving time

Both cities keep one offset all year. Whatever difference holds today still holds in six months.

Reykjavík

Does not observe daylight saving time

Standard: UTC+0

Dubai

Does not observe daylight saving time

Standard: UTC+4

When you can actually talk

You have 5 hours of shared working time: 09:00–14:00 in Reykjavík, which is 13:00–18:00 in Dubai.

Reykjavík 09:00–14:00Dubai 13:00–18:00

Reference

The underlying data, in case you need to put it in a calendar invitation or a configuration file.

	Reykjavík	Dubai
IANA zone	Atlantic/Reykjavik	Asia/Dubai
Abbreviation	GMT	GST
Standard offset	UTC+0	UTC+4
Daylight offset	—	—
Clock changes this year	0	0
Country	Iceland	United Arab Emirates

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

Common questions

What is the time difference between Reykjavík and Dubai?: Dubai is 4 hours ahead of Reykjavík. 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 Dubai from Reykjavík?: Between 09:00–14:00 in Reykjavík, which is 13:00–18:00 in Dubai. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Reykjavík observe daylight saving time?: No. Reykjavík stays on UTC+0 all year, so its clocks never move.
Does Dubai observe daylight saving time?: No. Dubai stays on UTC+4 all year, so its clocks never move.
If it is midday in Reykjavík, what time is it in Dubai?: It is 16:00 in Dubai, on the same calendar date. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.
Which time zones do Reykjavík and Dubai use?: Reykjavík uses Atlantic/Reykjavik, currently UTC+0 (GMT), and Dubai uses Asia/Dubai, currently UTC+4 (GST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.