Bangkok to Riyadh Time
ICT to AST Converter — 9 AM ICT is 5:00 AM AST
Bangkok is 4 hours ahead of Riyadh. Convert any time between Bangkok (ICT) and Riyadh (AST) instantly.
Bangkok
Thailand
Riyadh
Saudi Arabia
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Time Zone Comparison
Bangkok to Riyadh Time Conversion Table
| Bangkok (ICT) | Riyadh (AST) |
|---|---|
| 12:00 AM | 8:00 PM |
| 2:00 AM | 10:00 PM |
| 4:00 AM | 12:00 AM |
| 6:00 AM | 2:00 AM |
| 8:00 AM | 4:00 AM |
| 10:00 AM | 6:00 AM |
| 12:00 PM | 8:00 AM |
| 2:00 PM | 10:00 AM |
| 4:00 PM | 12:00 PM |
| 6:00 PM | 2:00 PM |
| 8:00 PM | 4:00 PM |
| 10:00 PM | 6:00 PM |
Bangkok & Riyadh — Business & Scheduling Guide
Bangkok (Thailand) is an important regional economy, with key industries in diverse sectors including services and trade. Riyadh (Saudi Arabia) is the largest economy in the Middle East, known for oil & gas, construction, finance, and tourism under Vision 2030. With a 4-hour time difference, professionals frequently schedule cross-border calls between these two cities for international trade, remote team collaboration, and client meetings.
Scheduling Meetings Between Bangkok and Riyadh
The 4-hour difference between Bangkok and Riyadh requires careful scheduling. The best overlap window is typically 2–4 hours when both cities are within working hours. Business hours typically follow a 9 AM–5 PM schedule. Saudi business hours typically run 9 AM–5 PM Sunday–Thursday, with business often conducted over meals. Teams often designate specific "overlap hours" for real-time collaboration and use asynchronous communication (Slack, email, recorded video) for the rest of the day.
Daylight Saving Time Considerations
Neither Bangkok nor Riyadh observes Daylight Saving Time — Bangkok stays on ICT and Riyadh stays on AST year-round. This makes scheduling between these two cities simpler, as the 4-hour time difference remains constant throughout the year with no DST surprises.
ICT to AST — Quick Reference
ICT (ICT) stands for the timezone used in Bangkok, Thailand (UTC+7). AST (AST) is the timezone used in Riyadh, Saudi Arabia (UTC+3). Bangkok is 4 hours ahead of Riyadh.
To convert ICT to AST, subtract 4 hours from ICT time. For example, ICT 9:00 AM = AST 5:00 AM.
Key Facts
- •Time difference: Bangkok (UTC+7) is 4 hours ahead of Riyadh (UTC+3).
- •Daylight Saving Time: Bangkok does not observe DST (ICT). Riyadh does not observe DST (AST).
- •Regions: Bangkok is located in Thailand and uses the ICT time zone. Riyadh is located in Saudi Arabia and uses the AST time zone.
- •Best time to call: The best time to call between Bangkok and Riyadh is 1:00 PM to 4:00 PM in Bangkok time, when both cities have overlapping standard working hours.
Frequently Asked Questions
What is the time difference between Bangkok and Riyadh?
Bangkok is 4 hours ahead of Riyadh.
What time is it in Riyadh when it's 9 AM in Bangkok?
When it's 9:00 AM in Bangkok, it is 5:00 AM in Riyadh.
What time is 9 PM ICT in AST?
9 PM ICT (Bangkok time) is 5:00 PM AST (Riyadh time). This is a common time people check when scheduling evening calls across these two time zones.
When is the best time to schedule a meeting between Bangkok and Riyadh?
The best time to schedule a meeting is between 1:00 PM to 4:00 PM in Bangkok time, when both cities are within standard working hours (9 AM – 5 PM). This gives you the maximum overlap window for real-time collaboration.
How do I convert ICT to AST?
ICT (ICT) is the timezone for Bangkok, Thailand (UTC+7). AST (AST) is the timezone for Riyadh, Saudi Arabia (UTC+3). Bangkok is 4 hours ahead of Riyadh. Quick examples: 9 AM ICT = 5:00 AM AST, 12 PM ICT = 8:00 AM AST, 3 PM ICT = 11:00 AM AST, 6 PM ICT = 2:00 PM AST.
Is Bangkok ahead of or behind Riyadh?
Bangkok is 4 hours ahead of Riyadh. When it's noon in Bangkok, it's 8:00 AM in Riyadh.
Does Bangkok or Riyadh change clocks for Daylight Saving Time?
No, Bangkok does not observe DST — it stays on ICT year-round. Riyadh does not observe DST — it stays on AST year-round.
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