Riyadh to Los Angeles
-10hRiyadh
ASTSOURCELos Angeles
PDTGreen rows indicate typical business hours (9 AM - 5 PM)
AST and PDT on the World Map
The map below highlights the AST (Arabia Standard Time) and PDT (Pacific Standard Time) timezone regions across the globe.
AST – Arabia Standard Time
UTC+03:00Arabia Standard Time (AST, UTC+03:00) is the time zone for Saudi Arabia and the other Gulf states of the Arabian peninsula.
- •None of the Gulf states on Arabia Standard Time observe daylight saving.
- •AST is the same offset as Moscow Standard Time and East Africa Time.
- •Riyadh is one hour ahead of Central European Time in winter.
- •The AST abbreviation is shared with Atlantic Standard Time (UTC-04:00).
PST – Pacific Standard Time
UTC-08:00Pacific Standard Time (PST) is the time zone for the US and Canadian Pacific coast, 8 hours behind UTC.
- •Silicon Valley and the world's biggest tech companies operate on Pacific Time.
- •The Hollywood film industry runs on PST/PDT.
- •PST is 3 hours behind EST, creating a significant business hours gap.
- •Vancouver, Canada's third-largest city, uses PST.
About Riyadh
WikipediaRiyadh operates on Arabia Standard Time (AST), UTC+3. As OPEC's de facto capital and home to Tadawul, Riyadh time impacts global energy markets.
Riyadh is growing rapidly as part of Saudi Vision 2030 modernization.
About Los Angeles
WikipediaLos Angeles operates on Pacific Time (PST/PDT), 3 hours behind New York. As the entertainment capital, LA time is important for media and tech industries.
Los Angeles is the entertainment capital of the world, home to Hollywood and major film studios.
Comparing Time Zones: Riyadh and Los Angeles
Riyadh runs on Arabian Standard Time (AST) at UTC+03:00. Los Angeles runs on Pacific Daylight Time (PDT) at UTC-07:00, also currently on daylight saving time. That puts Riyadh 10 hours behind Los Angeles — a difference of -10h at the current offsets.
In practice, when it is 9:00 AM in Riyadh it is 11:00 PM in Los Angeles on the previous day. Midnight in Riyadh is 2:00 PM in Los Angeles.Los Angeles observes daylight saving time while Riyadh does not, so the gap narrows or widens by an hour part of the year.
Riyadh to Los Angeles time conversion table
| Riyadh (AST) | Los Angeles (PDT) | Day |
|---|---|---|
| 12:00 AM | 2:00 PM | previous day |
| 6:00 AM | 8:00 PM | previous day |
| 7:00 AM | 9:00 PM | previous day |
| 8:00 AM | 10:00 PM | previous day |
| 9:00 AM | 11:00 PM | previous day |
| 12:00 PM | 2:00 AM | same day |
| 3:00 PM | 5:00 AM | same day |
| 5:00 PM | 7:00 AM | same day |
| 6:00 PM | 8:00 AM | same day |
| 9:00 PM | 11:00 AM | same day |
Why people convert Riyadh to Los Angeles time
- Scheduling a call from Riyadh to Los Angeles: a 10:00 AM start in Riyadh lands at 12:00 AM in Los Angeles, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -10h gap: Riyadh and Los Angeles have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in Los Angeles is 11:00 PM in Riyadh.
- Keeping family and friends in sync: knowing that 8:00 PM in Riyadh is 10:00 AM in Los Angeles makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM AST" is unambiguous; "3 PM" across a -10h gap is not.
- With a -10h gap there is no shared 9-to-5 window, so alternate the early start: one week Riyadh takes the early slot, the next week Los Angeles does.
- Los Angeles: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.
About AST (Arabia Standard Time)
Arabia Standard Time (AST) is fixed at UTC+03:00 all year across Saudi Arabia, Qatar, Kuwait, Bahrain, Iraq and Yemen. None of these countries observes daylight saving time, so the offset never changes. The abbreviation collides with Atlantic Standard Time (UTC-04:00) used in eastern Canada and the Caribbean; this page covers the Arabian peninsula meaning. Arabia Standard Time is the same offset as Moscow Standard Time and East Africa Time, which makes scheduling with Europe straightforward — Riyadh is one hour ahead of Central European Time in winter and level with it during European summer time.
About PST (Pacific Standard Time)
Pacific Standard Time (PST) covers the west coast of North America, including tech hubs like San Francisco and Seattle, and entertainment capital Los Angeles. The Pacific Time Zone is home to Silicon Valley and the world's largest technology companies. During summer, clocks advance to Pacific Daylight Time (PDT, UTC-07:00). PST is also observed in Baja California, Mexico.
Best time to call between Riyadh and Los Angeles
With a -10h offset there is no overlap inside a normal 9 AM – 5 PM day. Los Angeles opens at 9:00 AM PDT, which is 11:00 PM in Riyadh, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Riyadh and Los Angeles have no shared working hours because of the -10h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Riyadh is 10 hours behind Los Angeles (AST UTC+03:00 → PDT UTC-07:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Riyadh
Does not observe DST
Los Angeles
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Riyadh and Los Angeles?
Riyadh (AST, UTC+03:00) is 10 hours behind Los Angeles (PDT, UTC-07:00). The gap is currently -10h.
How do I convert Riyadh time to Los Angeles time?
Add -10h to Riyadh local time. For example, 9:00 AM in Riyadh is 11:00 PM in Los Angeles (previous day).
What time is it in Los Angeles right now?
Los Angeles uses PDT at UTC-07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -10h offset from Riyadh.
What is the best time to call Los Angeles from Riyadh?
There is no shared working-hours window because of the -10h gap. The closest option is 1:00 PM in Riyadh, which is 3:00 AM in Los Angeles.
Which is behind, Riyadh or Los Angeles?
Riyadh is 10 hours behind Los Angeles. When it is 12:00 PM in Riyadh it is 2:00 AM in Los Angeles.
Do Riyadh and Los Angeles use different time zones?
Riyadh (Saudi Arabia) uses AST at UTC+03:00, while Los Angeles (USA) uses PDT at UTC-07:00. The IANA identifiers are Asia/Riyadh and America/Los_Angeles.
Does daylight saving time affect the Riyadh–Los Angeles difference?
Yes at the moment: Los Angeles is on daylight saving time and Riyadh is not, so the -10h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Riyadh's time zone?
AST also covers Riyadh, Jeddah, Doha, Kuwait City, Baghdad.
Which countries use AST, Riyadh's zone?
AST is used in Saudi Arabia, Qatar, Kuwait, Bahrain, Iraq, Yemen.
Is there a day difference between Riyadh and Los Angeles?
Not normally. The -10h gap only pushes the date over the previous day.
What is the time difference between Riyadh and Los Angeles?
Los Angeles is -10h from Riyadh.
What timezone is Riyadh in?
Riyadh operates on Arabia Standard Time (AST), UTC+3. As OPEC's de facto capital and home to Tadawul, Riyadh time impacts global energy markets.
What timezone is Los Angeles in?
Los Angeles operates on Pacific Time (PST/PDT), 3 hours behind New York. As the entertainment capital, LA time is important for media and tech industries.
What are the business hours in Riyadh?
Standard business hours in Riyadh are 8:00 AM - 4:00 PM AST (Sunday-Thursday).
What are the business hours in Los Angeles?
Standard business hours in Los Angeles are 9:00 AM - 5:00 PM PST.
What is the best time to schedule a call between Riyadh and Los Angeles?
The best overlap for a call is when both cities are in business hours. Riyadh works 8:00 AM - 4:00 PM AST (Sunday-Thursday) and Los Angeles works 9:00 AM - 5:00 PM PST (-10h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Riyadh and Los Angeles?
Riyadh uses SAR (﷼) while Los Angeles uses USD ($). Check current exchange rates when planning travel or business between these cities.
How do Riyadh and Los Angeles compare in size?
Riyadh has a population of approximately 7.7 million (metro: 7.7 million), while Los Angeles has approximately 4 million (metro: 13.2 million).
What are the major landmarks in Riyadh and Los Angeles?
Riyadh is known for Kingdom Centre, Masmak Fortress, National Museum. Los Angeles is famous for Hollywood Sign, Santa Monica Pier, Griffith Observatory.
Do Riyadh and Los Angeles have stock exchanges?
Yes. Riyadh has the Tadawul (Saudi Stock Exchange) and Los Angeles has the N/A (Uses NYSE/NASDAQ). The -10h time difference affects trading hour overlaps between these exchanges.
Which countries use AST (Arabia Standard Time)?
AST is used in Saudi Arabia, Qatar, Kuwait, Bahrain, Iraq, Yemen.
Does AST observe daylight saving time?
No, AST does not observe daylight saving time and remains at UTC+03:00 year-round.
What are some interesting facts about AST?
None of the Gulf states on Arabia Standard Time observe daylight saving. AST is the same offset as Moscow Standard Time and East Africa Time.
Which cities are in the PST timezone?
Major cities in the PST timezone include Los Angeles, San Francisco, Seattle, Vancouver, San Diego, Portland, Las Vegas, Sacramento.
What is the UTC offset for PST?
Pacific Standard Time (PST) is at UTC-08:00. During daylight saving time, it shifts to PDT.
What should I know about the PST timezone?
Silicon Valley and the world's biggest tech companies operate on Pacific Time. The Hollywood film industry runs on PST/PDT.
When is it midnight in Riyadh, what time is it in Los Angeles?
When it is 12:00 AM (midnight) in Riyadh (AST), it is -10h later in Los Angeles (PST).
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