Bangkok
Riyadh
Convert ICT to AST
Indochina Time to Arabia Standard Time — Riyadh is 4 hours behind Bangkok
Quick Facts
Time Difference
-4 hours
ICT Full Name
Indochina Time
AST Full Name
Arabia Standard Time
ICT to AST Conversion Table
Related Conversions
About ICT and AST Time Zones
ICT (Indochina Time) is UTC+7 and covers cities like Bangkok, Ho Chi Minh City, Hanoi. AST (Arabia Standard Time) is UTC+3 and covers cities like Riyadh, Jeddah, Baghdad.
When it's 12:00 PM (noon) in Bangkok (ICT), it's 8:00 AM in Riyadh (AST). The time difference between ICT and AST is 4 hours — Riyadh is behind Bangkok.
The best meeting window is 9:00 AM–1:00 PM ICT (1:00 PM–5:00 PM AST).
Use our world clock tool to compare Bangkok and Riyadh with a visual timeline, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between ICT and AST?
Riyadh (AST) is 4 hours behind Bangkok (ICT). The offset is -4 hours.
Is AST ahead or behind ICT?
AST is 4 hours behind ICT. ICT is UTC+7 and AST is UTC+3.
When it's 12:00 PM in Bangkok, what time is it in Riyadh?
When it's 12:00 PM (noon) in Bangkok (ICT), it's 8:00 AM in Riyadh (AST).
When it's 5:00 PM in Bangkok, what time is it in Riyadh?
When it's 5:00 PM in Bangkok (ICT), it's 1:00 PM in Riyadh (AST).