AST to Los Angeles
-3hAST
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 (Atlantic Standard Time) and PDT (Pacific Standard Time) timezone regions across the globe.
AST – Atlantic Standard Time
UTC-04:00Atlantic Standard Time (AST) is the time zone for the Canadian Atlantic provinces and the Caribbean, 4 hours behind UTC.
- •Puerto Rico uses AST year-round and does not observe DST.
- •AST is 1 hour ahead of EST.
- •Halifax, the capital of Nova Scotia, is the largest city in AST Canada.
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 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.
Time Conversion Guide: AST to Los Angeles
AST runs on Atlantic Standard Time (AST) at UTC-04:00. Los Angeles runs on Pacific Daylight Time (PDT) at UTC-07:00, also currently on daylight saving time. That puts AST 3 hours behind Los Angeles — a difference of -3h at the current offsets.
In practice, when it is 9:00 AM in AST it is 6:00 AM in Los Angeles. Midnight in AST is 9:00 PM in Los Angeles.Los Angeles observes daylight saving time while AST does not, so the gap narrows or widens by an hour part of the year.
AST to Los Angeles time conversion table
| AST (AST) | Los Angeles (PDT) | Day |
|---|---|---|
| 12:00 AM | 9:00 PM | previous day |
| 6:00 AM | 3:00 AM | same day |
| 7:00 AM | 4:00 AM | same day |
| 8:00 AM | 5:00 AM | same day |
| 9:00 AM | 6:00 AM | same day |
| 12:00 PM | 9:00 AM | same day |
| 3:00 PM | 12:00 PM | same day |
| 5:00 PM | 2:00 PM | same day |
| 6:00 PM | 3:00 PM | same day |
| 9:00 PM | 6:00 PM | same day |
Why people convert AST to Los Angeles time
- Scheduling a call from AST to Los Angeles: a 10:00 AM start in AST lands at 7:00 AM in Los Angeles, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both AST and Los Angeles are inside the 9-to-5 working day between 12:00 PM and 5:00 PM AST time (9:00 AM–2:00 PM PDT). That is roughly 5 hours of usable overlap.
- Booking travel or deliveries: tracking Los Angeles local time against AST keeps pickup windows and arrival estimates honest across the -3h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM AST" is unambiguous; "3 PM" across a -3h gap is not.
- Block 12:00 PM–5:00 PM AST as the recurring meeting window if you work primarily from AST and need Los Angeles colleagues present.
- 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 (Atlantic Standard Time)
Atlantic Standard Time (AST) covers Canada's Atlantic provinces (Nova Scotia, New Brunswick, Prince Edward Island, and most of Labrador), as well as several Caribbean nations. Puerto Rico and the US Virgin Islands use AST year-round without daylight saving time. The Canadian provinces switch to Atlantic Daylight Time (ADT) in summer.
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 AST and Los Angeles
Both AST and Los Angeles sit inside the 9 AM – 5 PM working day between 12:00 PM–5:00 PM AST, which is 9:00 AM–2:00 PM PDT. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
AST and Los Angeles share 5 hours of working-hours overlap (12:00 PM–5:00 PM AST), so scheduling a live meeting is straightforward.
AST is 3 hours behind Los Angeles (AST UTC-04:00 → PDT UTC-07:00). The shared working window is 12:00 PM–5:00 PM AST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
AST
☀ Currently in DST
Standard: UTC-04:00 · DST: UTC-03:00
Clocks fall back on Sun, Nov 1, 2026
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 AST and Los Angeles?
AST (AST, UTC-04:00) is 3 hours behind Los Angeles (PDT, UTC-07:00). The gap is currently -3h.
How do I convert AST time to Los Angeles time?
Add -3h to AST local time. For example, 9:00 AM in AST is 6:00 AM in Los Angeles.
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 -3h offset from AST.
What is the best time to call Los Angeles from AST?
Call between 12:00 PM and 5:00 PM AST — that maps to 9:00 AM–2:00 PM PDT and keeps both parties inside the working day.
Which is behind, AST or Los Angeles?
AST is 3 hours behind Los Angeles. When it is 12:00 PM in AST it is 9:00 AM in Los Angeles.
Do AST and Los Angeles use different time zones?
AST uses AST at UTC-04:00, while Los Angeles (USA) uses PDT at UTC-07:00. The IANA identifiers are America/Halifax and America/Los_Angeles.
Does daylight saving time affect the AST–Los Angeles difference?
Yes at the moment: Los Angeles is on daylight saving time and AST is not, so the -3h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share AST's time zone?
AST also covers Halifax, San Juan, Santo Domingo, Caracas, La Paz, Fredericton, Charlottetown.
Which countries use AST, AST's zone?
AST is used in Canada (Atlantic provinces), Puerto Rico, US Virgin Islands, Dominican Republic, Venezuela, Bolivia, Barbados, Trinidad and Tobago.
Is there a day difference between AST and Los Angeles?
Not normally. The -3h gap only pushes the date over the previous day.
What is the time difference between AST and Los Angeles?
Los Angeles is -3h from AST.
What timezone is AST in?
AST operates on its local timezone.
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 Los Angeles?
Standard business hours in Los Angeles are 9:00 AM - 5:00 PM PST.
Which countries use AST (Atlantic Standard Time)?
AST is used in Canada (Atlantic provinces), Puerto Rico, US Virgin Islands, Dominican Republic, Venezuela, Bolivia, and 2 more countries.
Does AST observe daylight saving time?
Yes, AST switches to ADT during summer months.
What are some interesting facts about AST?
Puerto Rico uses AST year-round and does not observe DST. AST is 1 hour ahead of EST.
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 AST, what time is it in Los Angeles?
When it is 12:00 AM (midnight) in AST (AST), it is -3h later in Los Angeles (PST).
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