What is the time difference between Singapore and Reykjavík?

Reykjavík is 8 hours behind Singapore. 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 Reykjavík from Singapore?

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

Does Singapore observe daylight saving time?

No. Singapore stays on UTC+8 all year, so its clocks never move.

Does Reykjavík observe daylight saving time?

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

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

It is 04:00 in Reykjavík, 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 Singapore and Reykjavík use?

Singapore uses Asia/Singapore, currently UTC+8, and Reykjavík uses Atlantic/Reykjavik, currently UTC+0 (GMT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Singapore time to Reykjavík time

Right now Reykjavík runs 8 hours behind Singapore. 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 Singapore, across for Reykjavík.

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

Daylight saving time

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

Singapore

Does not observe daylight saving time

Standard: UTC+8

Reykjavík

Does not observe daylight saving time

Standard: UTC+0

When you can actually talk

You have 1 hour of shared working time: 17:00–18:00 in Singapore, which is 09:00–10:00 in Reykjavík.

Singapore 17:00–18:00Reykjavík 09:00–10:00

Reference

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

	Singapore	Reykjavík
IANA zone	Asia/Singapore	Atlantic/Reykjavik
Abbreviation	UTC+8	GMT
Standard offset	UTC+8	UTC+0
Daylight offset	—	—
Clock changes this year	0	0
Country	Singapore	Iceland

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

Common questions

What is the time difference between Singapore and Reykjavík?: Reykjavík is 8 hours behind Singapore. 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 Reykjavík from Singapore?: Between 17:00–18:00 in Singapore, which is 09:00–10:00 in Reykjavík. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Singapore observe daylight saving time?: No. Singapore stays on UTC+8 all year, so its clocks never move.
Does Reykjavík observe daylight saving time?: No. Reykjavík stays on UTC+0 all year, so its clocks never move.
If it is midday in Singapore, what time is it in Reykjavík?: It is 04:00 in Reykjavík, 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 Singapore and Reykjavík use?: Singapore uses Asia/Singapore, currently UTC+8, and Reykjavík uses Atlantic/Reykjavik, currently UTC+0 (GMT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.