Riyadh
Los Angeles
Convert AST to PST
Arabia Standard Time to Pacific Standard Time — Los Angeles is 10 hours behind Riyadh
Quick Facts
Time Difference
-10 hours
AST Full Name
Arabia Standard Time
PST Full Name
Pacific Standard Time
AST to PST Conversion Table
Related Conversions
About AST and PST Time Zones
AST (Arabia Standard Time) is UTC+3 and covers cities like Riyadh, Jeddah, Baghdad. PST (Pacific Standard Time) is UTC-8 and covers cities like Los Angeles, San Francisco, Seattle.
When it's 12:00 PM (noon) in Riyadh (AST), it's 2:00 AM in Los Angeles (PST). The time difference between AST and PST is 10 hours — Los Angeles is behind Riyadh.
The 11-hour difference makes real-time overlap challenging — early morning calls (7–9 AM AST) work best.
Daylight Saving Time
PST observes Daylight Saving Time and becomes PDT (Pacific Daylight Time) during summer months, shifting clocks forward by 1 hour to UTC-7.
During DST transitions, the time difference between AST and PST may shift by ±1 hour. Always verify the current offset above for the most accurate conversion.
Use our world clock tool to compare Riyadh and Los Angeles with a visual timeline, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between AST and PST?
Los Angeles (PST) is 10 hours behind Riyadh (AST). The offset is -10 hours.
Is PST ahead or behind AST?
PST is 10 hours behind AST. AST is UTC+3 and PST is UTC-7.
When it's 12:00 PM in Riyadh, what time is it in Los Angeles?
When it's 12:00 PM (noon) in Riyadh (AST), it's 2:00 AM in Los Angeles (PST).
When it's 5:00 PM in Riyadh, what time is it in Los Angeles?
When it's 5:00 PM in Riyadh (AST), it's 7:00 AM in Los Angeles (PST).
Does PST change for Daylight Saving Time?
Yes. PST (Pacific Standard Time, UTC-8) becomes PDT (Pacific Daylight Time, UTC-7) in summer, shifting clocks forward 1 hour.