What is the time difference between Istanbul and Singapore?

Singapore is 5 hours ahead of Istanbul. 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 Singapore from Istanbul?

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

Does Istanbul observe daylight saving time?

No. Istanbul stays on UTC+3 all year, so its clocks never move.

Does Singapore observe daylight saving time?

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

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

It is 17:00 in Singapore, 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 Istanbul and Singapore use?

Istanbul uses Europe/Istanbul, currently UTC+3, and Singapore uses Asia/Singapore, currently UTC+8. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Istanbul time to Singapore time

Right now Singapore runs 5 hours ahead of Istanbul. 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 Istanbul, across for Singapore.

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

Daylight saving time

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

Istanbul

Does not observe daylight saving time

Standard: UTC+3

Singapore

Does not observe daylight saving time

Standard: UTC+8

When you can actually talk

You have 4 hours of shared working time: 09:00–13:00 in Istanbul, which is 14:00–18:00 in Singapore.

Istanbul 09:00–13:00Singapore 14:00–18:00

Reference

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

	Istanbul	Singapore
IANA zone	Europe/Istanbul	Asia/Singapore
Abbreviation	UTC+3	UTC+8
Standard offset	UTC+3	UTC+8
Daylight offset	—	—
Clock changes this year	0	0
Country	Türkiye	Singapore

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

Common questions

What is the time difference between Istanbul and Singapore?: Singapore is 5 hours ahead of Istanbul. 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 Singapore from Istanbul?: Between 09:00–13:00 in Istanbul, which is 14:00–18:00 in Singapore. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Istanbul observe daylight saving time?: No. Istanbul stays on UTC+3 all year, so its clocks never move.
Does Singapore observe daylight saving time?: No. Singapore stays on UTC+8 all year, so its clocks never move.
If it is midday in Istanbul, what time is it in Singapore?: It is 17:00 in Singapore, 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 Istanbul and Singapore use?: Istanbul uses Europe/Istanbul, currently UTC+3, and Singapore uses Asia/Singapore, currently UTC+8. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.