Live · calculated from the IANA time-zone database
Time difference between Los Angeles and Seoul
Short answer
Seoul is 16 hours ahead of Los Angeles. Right now it is 05:36 in Los Angeles (PDT, UTC−7) and 21:36 in Seoul (GMT+9, UTC+9).
Right now
Los Angeles · United States
05:36
Tuesday, September 15, 2026
Pacific Daylight Time · PDT · UTC−7
Seoul · South Korea
21:36
Tuesday, September 15, 2026
Korean Standard Time · GMT+9 · UTC+9
Times at the moment this page was generated. Reload for a fresh reading.
Does the difference between Los Angeles and Seoul change during the year?
Yes. For 238 days of 2026 the difference is 16 hours, but it moves whenever Los Angeles or Seoul enters or leaves daylight saving time. Here is the full 2026 calendar (dates in UTC):
| From | Until | Seoul vs Los Angeles |
|---|---|---|
| January 1 | March 8 | +17 h |
| March 8 | November 1 | +16 h |
| November 1 | December 31 | +17 h |
The highlighted row is the current period. Every date comes from each zone's official rules, not from a hand-typed table.
Best time to call Seoul from Los Angeles (and vice versa)
With 16 hours between them there is no hour at which Los Angeles and Seoul are both inside a 9:00–17:00 working day. Teams split across these two cities usually alternate the sacrifice: one week the meeting lands early (7:00–8:00) in Los Angeles and late (18:00–19:00) in the other city, the next week the other way round. The Timezone Matcher grid shades exactly those compromise hours.
Los Angeles to Seoul conversion table
Each Los Angeles hour and its equivalent in Seoul today. Rows shaded green are working hours (9:00–17:00) in both cities at once.
| Los Angeles time · Tue, Sep 15 | Seoul time |
|---|---|
| 00:00 | 16:00 |
| 01:00 | 17:00 |
| 02:00 | 18:00 |
| 03:00 | 19:00 |
| 04:00 | 20:00 |
| 05:00 | 21:00 |
| 06:00 | 22:00 |
| 07:00 | 23:00 |
| 08:00 | 00:00next day |
| 09:00 | 01:00next day |
| 10:00 | 02:00next day |
| 11:00 | 03:00next day |
| 12:00 | 04:00next day |
| 13:00 | 05:00next day |
| 14:00 | 06:00next day |
| 15:00 | 07:00next day |
| 16:00 | 08:00next day |
| 17:00 | 09:00next day |
| 18:00 | 10:00next day |
| 19:00 | 11:00next day |
| 20:00 | 12:00next day |
| 21:00 | 13:00next day |
| 22:00 | 14:00next day |
| 23:00 | 15:00next day |
Looking for it the other way round? This page covers both directions: Seoul to Los Angeles is the same difference with the sign flipped.
The two time zones
Los Angeles — America/Los_Angeles
Los Angeles runs on Pacific Time (PT): UTC−8 in winter (PST) and UTC−7 in summer (PDT). It is the clock of Hollywood, Silicon Valley, Seattle and the entire US West Coast.
Seoul — Asia/Seoul
Seoul keeps Korea Standard Time (UTC+9), identical to Tokyo all year round.
Frequently asked questions
How many hours difference between Los Angeles and Seoul?
Seoul is 16 hours ahead of Los Angeles. For most of the year (238 days) the difference is 16 hours; it shifts during the weeks when one of the two cities enters or leaves daylight saving time.
When it is 12:00 noon in Los Angeles, what time is it in Seoul?
04:00 in Seoul the next day (at today's difference of 16 hours).
What is the best time for a meeting between Los Angeles and Seoul?
There is no overlap between the 9:00–17:00 working days of Los Angeles and Seoul. Teams usually alternate: an early-morning slot in Los Angeles lands in the late evening of the other city.
Do Los Angeles and Seoul observe daylight saving time?
Los Angeles: yes. Seoul: no. Because only one of them changes its clocks, the difference moves by one hour twice a year.
What time zone is Los Angeles in? And Seoul?
Los Angeles: Pacific Daylight Time (America/Los_Angeles, UTC−7). Seoul: Korean Standard Time (Asia/Seoul, UTC+9).
Tools
Meeting grid — add both cities and click a slot
Time zone converter — any city, any time
Working hours overlap calculator
Daylight saving time 2027 — all dates
More time differences from Los Angeles
More time differences from Seoul
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