What is the time difference between Singapore and Riyadh?

Riyadh is 5 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 Riyadh from Singapore?

Between 14:00–18:00 in Singapore, which is 09:00–13:00 in Riyadh. 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 Riyadh observe daylight saving time?

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

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

It is 07:00 in Riyadh, 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 Riyadh use?

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

Convert Singapore time to Riyadh time

Riyadh is 5 hours behind Singapore right now, so midday in Singapore lands in the morning in Riyadh.

Convert a time

From

Date

Time

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

The whole day mapped across: read down the left for Singapore, across for Riyadh.

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

Daylight saving time

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

Singapore

Does not observe daylight saving time

Standard: UTC+8

Riyadh

Does not observe daylight saving time

Standard: UTC+3

When you can actually talk

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

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

Reference

The zone identifiers and offsets behind everything above.

	Singapore	Riyadh
IANA zone	Asia/Singapore	Asia/Riyadh
Abbreviation	UTC+8	UTC+3
Standard offset	UTC+8	UTC+3
Daylight offset	—	—
Clock changes this year	0	0
Country	Singapore	Saudi Arabia

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

Common questions

What is the time difference between Singapore and Riyadh?: Riyadh is 5 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 Riyadh from Singapore?: Between 14:00–18:00 in Singapore, which is 09:00–13:00 in Riyadh. 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 Riyadh observe daylight saving time?: No. Riyadh stays on UTC+3 all year, so its clocks never move.
If it is midday in Singapore, what time is it in Riyadh?: It is 07:00 in Riyadh, 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 Riyadh use?: Singapore uses Asia/Singapore, currently UTC+8, and Riyadh uses Asia/Riyadh, currently UTC+3. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.