Dubai
Riyadh
Convert GST to AST
Gulf Standard Time to Arabia Standard Time — Riyadh is 1 hour behind Dubai
Quick Facts
Time Difference
-1 hours
GST Full Name
Gulf Standard Time
AST Full Name
Arabia Standard Time
GST to AST Conversion Table
Related Conversions
About GST and AST Time Zones
GST (Gulf Standard Time) is UTC+4 and covers cities like Dubai, Abu Dhabi, Muscat. AST (Arabia Standard Time) is UTC+3 and covers cities like Riyadh, Jeddah, Baghdad.
When it's 12:00 PM (noon) in Dubai (GST), it's 11:00 AM in Riyadh (AST). The time difference between GST and AST is 1 hour — Riyadh is behind Dubai.
With only a 1-hour difference, Dubai and Riyadh share nearly a full business day overlap, making scheduling straightforward.
Use our world clock tool to compare Dubai and Riyadh with a visual timeline, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between GST and AST?
Riyadh (AST) is 1 hour behind Dubai (GST). The offset is -1 hours.
Is AST ahead or behind GST?
AST is 1 hour behind GST. GST is UTC+4 and AST is UTC+3.
When it's 12:00 PM in Dubai, what time is it in Riyadh?
When it's 12:00 PM (noon) in Dubai (GST), it's 11:00 AM in Riyadh (AST).
When it's 5:00 PM in Dubai, what time is it in Riyadh?
When it's 5:00 PM in Dubai (GST), it's 4:00 PM in Riyadh (AST).