Saudi Arabia to Singapore
+5hSaudi Arabia
ASTSOURCESingapore
SGTGreen rows indicate typical business hours (9 AM - 5 PM)
AST and SGT on the World Map
The map below highlights the AST (Arabia Standard Time) and SGT (Singapore Standard Time) timezone regions across the globe.
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).
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.
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.
Everything You Need to Know About Saudi Arabia and Singapore Time
Saudi Arabia runs on Arabian Standard Time (AST) at UTC+03:00. Singapore runs on Singapore Standard Time (SGT) at UTC+08:00. That puts Saudi Arabia 5 hours ahead of Singapore — a difference of +5h at the current offsets.
In practice, when it is 9:00 AM in Saudi Arabia it is 2:00 PM in Singapore. Midnight in Saudi Arabia is 5:00 AM in Singapore. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Saudi Arabia to Singapore time conversion table
| Saudi Arabia (AST) | Singapore (SGT) | Day |
|---|---|---|
| 12:00 AM | 5:00 AM | same day |
| 6:00 AM | 11:00 AM | same day |
| 7:00 AM | 12:00 PM | same day |
| 8:00 AM | 1:00 PM | same day |
| 9:00 AM | 2:00 PM | same day |
| 12:00 PM | 5:00 PM | same day |
| 3:00 PM | 8:00 PM | same day |
| 5:00 PM | 10:00 PM | same day |
| 6:00 PM | 11:00 PM | same day |
| 9:00 PM | 2:00 AM | next day |
Why people convert Saudi Arabia to Singapore time
- Scheduling a call from Saudi Arabia to Singapore: a 10:00 AM start in Saudi Arabia lands at 3:00 PM in Singapore, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Saudi Arabia and Singapore are inside the 9-to-5 working day between 9:00 AM and 12:00 PM AST time (2:00 PM–5:00 PM SGT). That is roughly 3 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Saudi Arabia is 1:00 AM in Singapore makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM AST" is unambiguous; "3 PM" across a +5h gap is not.
- Block 9:00 AM–12:00 PM AST as the recurring meeting window if you work primarily from Saudi Arabia and need Singapore colleagues present.
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.
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.
Best time to call between Saudi Arabia and Singapore
Both Saudi Arabia and Singapore sit inside the 9 AM – 5 PM working day between 9:00 AM–12:00 PM AST, which is 2:00 PM–5:00 PM SGT. That gives roughly 3 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Saudi Arabia and Singapore overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.
Saudi Arabia is 5 hours ahead of Singapore (AST UTC+03:00 → SGT UTC+08:00). The shared working window is 9:00 AM–12:00 PM AST. 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 Saudi Arabia and Singapore?
Saudi Arabia (AST, UTC+03:00) is 5 hours ahead of Singapore (SGT, UTC+08:00). The gap is currently +5h.
How do I convert Saudi Arabia time to Singapore time?
Add +5h to Saudi Arabia local time. For example, 9:00 AM in Saudi Arabia is 2:00 PM in Singapore.
What time is it in Singapore right now?
Singapore uses SGT at UTC+08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +5h offset from Saudi Arabia.
What is the best time to call Singapore from Saudi Arabia?
Call between 9:00 AM and 12:00 PM AST — that maps to 2:00 PM–5:00 PM SGT and keeps both parties inside the working day.
Which is ahead, Saudi Arabia or Singapore?
Saudi Arabia is 5 hours ahead of Singapore. When it is 12:00 PM in Saudi Arabia it is 5:00 PM in Singapore.
Do Saudi Arabia and Singapore use different time zones?
Saudi Arabia (Saudi Arabia) uses AST at UTC+03:00, while Singapore (Singapore) uses SGT at UTC+08:00. The IANA identifiers are Asia/Riyadh and Asia/Singapore.
Does daylight saving time affect the Saudi Arabia–Singapore difference?
Neither zone observes daylight saving time, so the +5h offset between Saudi Arabia and Singapore is fixed all year.
Which other cities share Saudi Arabia's time zone?
AST also covers Riyadh, Jeddah, Doha, Kuwait City, Baghdad.
Which countries use AST, Saudi Arabia's zone?
AST is used in Saudi Arabia, Qatar, Kuwait, Bahrain, Iraq, Yemen.
Is there a day difference between Saudi Arabia and Singapore?
Not normally. The +5h gap only pushes the date over for late-evening times.
What is the time difference between Saudi Arabia and Singapore?
Singapore is +5h from Saudi Arabia.
What timezone is Saudi Arabia in?
Saudi Arabia operates on its local timezone.
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 are the business hours in Singapore?
Standard business hours in Singapore are 9:00 AM - 6:00 PM SGT.
Which countries use AST (Arabia Standard Time)?
AST is used in Saudi Arabia, Qatar, Kuwait, Bahrain, Iraq, Yemen.
Does AST observe daylight saving time?
No, AST does not observe daylight saving time and remains at UTC+03:00 year-round.
What are some interesting facts about AST?
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.
Which cities are in the SGT timezone?
Major cities in the SGT timezone include Singapore.
What is the UTC offset for SGT?
Singapore Standard Time (SGT) is at UTC+08:00.
What should I know about the SGT timezone?
Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00). Singapore does not observe daylight saving time.
When is it midnight in Saudi Arabia, what time is it in Singapore?
When it is 12:00 AM (midnight) in Saudi Arabia (AST), it is +5h later in Singapore (SGT).
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