Riyadh
UTC
Convert AST to UTC
Arabia Standard Time to Coordinated Universal Time — UTC is 3 hours behind Riyadh
Quick Facts
Time Difference
-3 hours
AST Full Name
Arabia Standard Time
UTC Full Name
Coordinated Universal Time
AST to UTC Conversion Table
Related Conversions
About AST and UTC Time Zones
AST (Arabia Standard Time) is UTC+3 and covers cities like Riyadh, Jeddah, Baghdad. UTC (Coordinated Universal Time) is UTC+0 and covers cities like Universal reference time.
When it's 12:00 PM (noon) in Riyadh (AST), it's 9:00 AM in UTC (UTC). The time difference between AST and UTC is 3 hours — UTC is behind Riyadh.
With only a 3-hour difference, Riyadh and UTC share nearly a full business day overlap, making scheduling straightforward.
Use our world clock tool to compare Riyadh and UTC with a visual timeline, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between AST and UTC?
UTC (UTC) is 3 hours behind Riyadh (AST). The offset is -3 hours.
Is UTC ahead or behind AST?
UTC is 3 hours behind AST. AST is UTC+3 and UTC is UTC+0.
When it's 12:00 PM in Riyadh, what time is it in UTC?
When it's 12:00 PM (noon) in Riyadh (AST), it's 9:00 AM in UTC (UTC).
When it's 5:00 PM in Riyadh, what time is it in UTC?
When it's 5:00 PM in Riyadh (AST), it's 2:00 PM in UTC (UTC).