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