Seoul to Los Angeles
-16hSeoul
KSTSOURCELos Angeles
PDTGreen rows indicate typical business hours (9 AM - 5 PM)
KST and PDT on the World Map
The map below highlights the KST (Korea Standard Time) and PDT (Pacific Standard Time) timezone regions across the globe.
KST – Korea Standard Time
UTC+09:00Korea Standard Time (KST) is the time zone for South Korea, 9 hours ahead of UTC.
- •South Korea does not observe daylight saving time.
- •Seoul is home to Samsung, LG, and Hyundai headquarters.
- •KST is the same offset as JST (UTC+09:00).
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 Seoul
WikipediaSeoul operates on Korea Standard Time (KST), UTC+9, same as Japan. As a global tech and entertainment hub, Seoul coordinates with East Asian markets.
Seoul has the fastest average internet speed in the world.
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: Seoul to Los Angeles
Seoul runs on Korean Standard Time (KST) at UTC+09:00. Los Angeles runs on Pacific Daylight Time (PDT) at UTC-07:00, also currently on daylight saving time. That puts Seoul 16 hours behind Los Angeles — a difference of -16h at the current offsets.
In practice, when it is 9:00 AM in Seoul it is 5:00 PM in Los Angeles on the previous day. Midnight in Seoul is 8:00 AM in Los Angeles.Los Angeles observes daylight saving time while Seoul does not, so the gap narrows or widens by an hour part of the year.
Seoul to Los Angeles time conversion table
| Seoul (KST) | Los Angeles (PDT) | Day |
|---|---|---|
| 12:00 AM | 8:00 AM | previous day |
| 6:00 AM | 2:00 PM | previous day |
| 7:00 AM | 3:00 PM | previous day |
| 8:00 AM | 4:00 PM | previous day |
| 9:00 AM | 5:00 PM | previous day |
| 12:00 PM | 8:00 PM | previous day |
| 3:00 PM | 11:00 PM | previous day |
| 5:00 PM | 1:00 AM | same day |
| 6:00 PM | 2:00 AM | same day |
| 9:00 PM | 5:00 AM | same day |
Why people convert Seoul to Los Angeles time
- Scheduling a call from Seoul to Los Angeles: a 10:00 AM start in Seoul lands at 6:00 PM in Los Angeles the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -16h gap: Seoul 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 5:00 PM in Seoul.
- Keeping family and friends in sync: knowing that 8:00 PM in Seoul is 4:00 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 KST" is unambiguous; "3 PM" across a -16h gap is not.
- With a -16h gap there is no shared 9-to-5 window, so alternate the early start: one week Seoul 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 KST (Korea Standard Time)
Korea Standard Time (KST) is the time zone used in South Korea. It shares the same UTC offset as Japan Standard Time but is a distinct time zone. South Korea does not observe daylight saving time. Seoul, the capital, is a major global tech and business hub.
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 Seoul and Los Angeles
With a -16h offset there is no overlap inside a normal 9 AM – 5 PM day. Los Angeles opens at 9:00 AM PDT, which is 5:00 PM in Seoul, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Seoul and Los Angeles have no shared working hours because of the -16h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Seoul is 16 hours behind Los Angeles (KST UTC+09:00 → 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
Seoul
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 Seoul and Los Angeles?
Seoul (KST, UTC+09:00) is 16 hours behind Los Angeles (PDT, UTC-07:00). The gap is currently -16h.
How do I convert Seoul time to Los Angeles time?
Add -16h to Seoul local time. For example, 9:00 AM in Seoul is 5:00 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 -16h offset from Seoul.
What is the best time to call Los Angeles from Seoul?
There is no shared working-hours window because of the -16h gap. The closest option is 1:00 PM in Seoul, which is 9:00 PM in Los Angeles.
Which is behind, Seoul or Los Angeles?
Seoul is 16 hours behind Los Angeles. When it is 12:00 PM in Seoul it is 8:00 PM in Los Angeles.
Do Seoul and Los Angeles use different time zones?
Seoul (South Korea) uses KST at UTC+09:00, while Los Angeles (USA) uses PDT at UTC-07:00. The IANA identifiers are Asia/Seoul and America/Los_Angeles.
Does daylight saving time affect the Seoul–Los Angeles difference?
Yes at the moment: Los Angeles is on daylight saving time and Seoul is not, so the -16h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Seoul's time zone?
KST also covers Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.
Which countries use KST, Seoul's zone?
KST is used in South Korea, North Korea.
Is there a day difference between Seoul and Los Angeles?
Sometimes. The -16h gap is large enough that 8:00 PM or later in Seoul already falls on the in Los Angeles.
What is the time difference between Seoul and Los Angeles?
Los Angeles is -16h from Seoul.
What timezone is Seoul in?
Seoul operates on Korea Standard Time (KST), UTC+9, same as Japan. As a global tech and entertainment hub, Seoul coordinates with East Asian 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 Seoul?
Standard business hours in Seoul are 9:00 AM - 6:00 PM KST.
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 Seoul and Los Angeles?
The best overlap for a call is when both cities are in business hours. Seoul works 9:00 AM - 6:00 PM KST and Los Angeles works 9:00 AM - 5:00 PM PST (-16h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Seoul and Los Angeles?
Seoul uses KRW (₩) while Los Angeles uses USD ($). Check current exchange rates when planning travel or business between these cities.
How do Seoul and Los Angeles compare in size?
Seoul has a population of approximately 9.7 million (metro: 25.5 million), while Los Angeles has approximately 4 million (metro: 13.2 million).
What are the major landmarks in Seoul and Los Angeles?
Seoul is known for Gyeongbokgung Palace, N Seoul Tower, Bukchon Hanok Village. Los Angeles is famous for Hollywood Sign, Santa Monica Pier, Griffith Observatory.
Do Seoul and Los Angeles have stock exchanges?
Yes. Seoul has the KRX (Korea Exchange) and Los Angeles has the N/A (Uses NYSE/NASDAQ). The -16h time difference affects trading hour overlaps between these exchanges.
Which countries use KST (Korea Standard Time)?
KST is used in South Korea, North Korea.
Does KST observe daylight saving time?
No, KST does not observe daylight saving time and remains at UTC+09:00 year-round.
What are some interesting facts about KST?
South Korea does not observe daylight saving time. Seoul is home to Samsung, LG, and Hyundai headquarters.
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 Seoul, what time is it in Los Angeles?
When it is 12:00 AM (midnight) in Seoul (KST), it is -16h later in Los Angeles (PST).
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