Singapore to Saudi Arabia
-5hSingapore
SGTSOURCESaudi Arabia
ASTGreen rows indicate typical business hours (9 AM - 5 PM)
SGT and AST on the World Map
The map below highlights the SGT (Singapore Standard Time) and AST (Arabia Standard Time) timezone regions across the globe.
SGT – Singapore Standard Time
UTC+08:00Singapore Standard Time (SGT) is the time zone for Singapore, 8 hours ahead of UTC.
- •Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00).
- •Singapore does not observe daylight saving time.
- •The Singapore Exchange (SGX) operates on SGT.
AST – Arabia Standard Time
UTC+03:00Arabia Standard Time (AST, UTC+03:00) is the time zone for Saudi Arabia and the other Gulf states of the Arabian peninsula.
- •None of the Gulf states on Arabia Standard Time observe daylight saving.
- •AST is the same offset as Moscow Standard Time and East Africa Time.
- •Riyadh is one hour ahead of Central European Time in winter.
- •The AST abbreviation is shared with Atlantic Standard Time (UTC-04:00).
About Singapore
WikipediaSingapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.
The city-state has the world's highest percentage of millionaires, with 1 in 6 households.
Singapore to Saudi Arabia Time Difference – Complete Guide
Singapore runs on Singapore Standard Time (SGT) at UTC+08:00. Saudi Arabia runs on Arabian Standard Time (AST) at UTC+03:00. That puts Singapore 5 hours behind Saudi Arabia — a difference of -5h at the current offsets.
In practice, when it is 9:00 AM in Singapore it is 4:00 AM in Saudi Arabia. Midnight in Singapore is 7:00 PM in Saudi Arabia. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Singapore to Saudi Arabia time conversion table
| Singapore (SGT) | Saudi Arabia (AST) | Day |
|---|---|---|
| 12:00 AM | 7:00 PM | previous day |
| 6:00 AM | 1:00 AM | same day |
| 7:00 AM | 2:00 AM | same day |
| 8:00 AM | 3:00 AM | same day |
| 9:00 AM | 4:00 AM | same day |
| 12:00 PM | 7:00 AM | same day |
| 3:00 PM | 10:00 AM | same day |
| 5:00 PM | 12:00 PM | same day |
| 6:00 PM | 1:00 PM | same day |
| 9:00 PM | 4:00 PM | same day |
Why people convert Singapore to Saudi Arabia time
- Scheduling a call from Singapore to Saudi Arabia: a 10:00 AM start in Singapore lands at 5:00 AM in Saudi Arabia, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Singapore and Saudi Arabia are inside the 9-to-5 working day between 2:00 PM and 5:00 PM SGT time (9:00 AM–12:00 PM AST). That is roughly 3 hours of usable overlap.
- Coordinating a Singapore-based team with Saudi Arabia contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM SGT" is unambiguous; "3 PM" across a -5h gap is not.
- Block 2:00 PM–5:00 PM SGT as the recurring meeting window if you work primarily from Singapore and need Saudi Arabia colleagues present.
About SGT (Singapore Standard Time)
Singapore Standard Time (SGT) is used in Singapore year-round. Singapore does not observe daylight saving time. Despite being geographically close to the UTC+07:00 zone, Singapore uses UTC+08:00 to align with major trading partners like China, Hong Kong, and Malaysia. Singapore is a major global financial hub.
About AST (Arabia Standard Time)
Arabia Standard Time (AST) is fixed at UTC+03:00 all year across Saudi Arabia, Qatar, Kuwait, Bahrain, Iraq and Yemen. None of these countries observes daylight saving time, so the offset never changes. The abbreviation collides with Atlantic Standard Time (UTC-04:00) used in eastern Canada and the Caribbean; this page covers the Arabian peninsula meaning. Arabia Standard Time is the same offset as Moscow Standard Time and East Africa Time, which makes scheduling with Europe straightforward — Riyadh is one hour ahead of Central European Time in winter and level with it during European summer time.
Best time to call between Singapore and Saudi Arabia
Both Singapore and Saudi Arabia sit inside the 9 AM – 5 PM working day between 2:00 PM–5:00 PM SGT, which is 9:00 AM–12:00 PM AST. That gives roughly 3 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Singapore and Saudi Arabia overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.
Singapore is 5 hours behind Saudi Arabia (SGT UTC+08:00 → AST UTC+03:00). The shared working window is 2:00 PM–5:00 PM SGT. Remember to re-check around daylight-saving transitions.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Singapore and Saudi Arabia?
Singapore (SGT, UTC+08:00) is 5 hours behind Saudi Arabia (AST, UTC+03:00). The gap is currently -5h.
How do I convert Singapore time to Saudi Arabia time?
Add -5h to Singapore local time. For example, 9:00 AM in Singapore is 4:00 AM in Saudi Arabia.
What time is it in Saudi Arabia right now?
Saudi Arabia uses AST at UTC+03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -5h offset from Singapore.
What is the best time to call Saudi Arabia from Singapore?
Call between 2:00 PM and 5:00 PM SGT — that maps to 9:00 AM–12:00 PM AST and keeps both parties inside the working day.
Which is behind, Singapore or Saudi Arabia?
Singapore is 5 hours behind Saudi Arabia. When it is 12:00 PM in Singapore it is 7:00 AM in Saudi Arabia.
Do Singapore and Saudi Arabia use different time zones?
Singapore (Singapore) uses SGT at UTC+08:00, while Saudi Arabia (Saudi Arabia) uses AST at UTC+03:00. The IANA identifiers are Asia/Singapore and Asia/Riyadh.
Does daylight saving time affect the Singapore–Saudi Arabia difference?
Neither zone observes daylight saving time, so the -5h offset between Singapore and Saudi Arabia is fixed all year.
Which other cities share Singapore's time zone?
SGT also covers Singapore.
Which countries use SGT, Singapore's zone?
SGT is used in Singapore.
Is there a day difference between Singapore and Saudi Arabia?
Not normally. The -5h gap only pushes the date over the previous day.
What is the time difference between Singapore and Saudi Arabia?
Saudi Arabia is -5h from Singapore.
What timezone is Singapore in?
Singapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.
What timezone is Saudi Arabia in?
Saudi Arabia operates on its local timezone.
What are the business hours in Singapore?
Standard business hours in Singapore are 9:00 AM - 6:00 PM SGT.
Which countries use SGT (Singapore Standard Time)?
SGT is used in Singapore.
Does SGT observe daylight saving time?
No, SGT does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about SGT?
Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00). Singapore does not observe daylight saving time.
Which cities are in the AST timezone?
Major cities in the AST timezone include Riyadh, Jeddah, Doha, Kuwait City, Baghdad.
What is the UTC offset for AST?
Arabia Standard Time (AST) is at UTC+03:00.
What should I know about the AST timezone?
None of the Gulf states on Arabia Standard Time observe daylight saving. AST is the same offset as Moscow Standard Time and East Africa Time.
When is it midnight in Singapore, what time is it in Saudi Arabia?
When it is 12:00 AM (midnight) in Singapore (SGT), it is -5h later in Saudi Arabia (AST).
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