What is the time difference between Seoul and Los Angeles?

Los Angeles is 16 hours behind Seoul. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call Los Angeles from Seoul?

Between 09:00–10:00 in Seoul, which is 17:00–18:00 in Los Angeles. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Seoul observe daylight saving time?

No. Seoul stays on UTC+9 all year, so its clocks never move.

Does Los Angeles observe daylight saving time?

Yes. Los Angeles runs on UTC-8 in winter and UTC-7 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.

If it is midday in Seoul, what time is it in Los Angeles?

It is 20:00 in Los Angeles, still on the previous day. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Seoul and Los Angeles use?

Seoul uses Asia/Seoul, currently UTC+9, and Los Angeles uses America/Los_Angeles, currently UTC-7 (PDT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Seoul time to Los Angeles time

Right now Los Angeles runs 16 hours behind Seoul. That gap is not fixed: it moves when either city changes its clocks.

Convert a time

From

Date

Time

Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

Every hour of a day in Seoul, and what the clock reads in Los Angeles at that same moment.

Seoul	Los Angeles
00:00	08:00previous day
01:00	09:00previous day
02:00	10:00previous day
03:00	11:00previous day
04:00	12:00previous day
05:00	13:00previous day
06:00	14:00previous day
07:00	15:00previous day
08:00	16:00previous day
09:00	17:00previous day
10:00	18:00previous day
11:00	19:00previous day
12:00	20:00previous day
13:00	21:00previous day
14:00	22:00previous day
15:00	23:00previous day
16:00	00:00
17:00	01:00
18:00	02:00
19:00	03:00
20:00	04:00
21:00	05:00
22:00	06:00
23:00	07:00

Daylight saving time

Los Angeles changes its clocks; Seoul does not. The difference between them therefore shifts by an hour twice a year.

Seoul

Does not observe daylight saving time

Standard: UTC+9

Los Angeles

Observes daylight saving time

Standard: UTC-8
Daylight: UTC-7
Next change: 2026-11-01 −60m

When you can actually talk

The window is 1 hour wide — 09:00–10:00 in Seoul, 17:00–18:00 in Los Angeles.

Seoul 09:00–10:00Los Angeles 17:00–18:00

Reference

The zone identifiers and offsets behind everything above.

	Seoul	Los Angeles
IANA zone	Asia/Seoul	America/Los_Angeles
Abbreviation	UTC+9	PDT
Standard offset	UTC+9	UTC-8
Daylight offset	—	UTC-7
Clock changes this year	0	2
Country	South Korea	United States

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Seoul and Los Angeles?: Los Angeles is 16 hours behind Seoul. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call Los Angeles from Seoul?: Between 09:00–10:00 in Seoul, which is 17:00–18:00 in Los Angeles. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Seoul observe daylight saving time?: No. Seoul stays on UTC+9 all year, so its clocks never move.
Does Los Angeles observe daylight saving time?: Yes. Los Angeles runs on UTC-8 in winter and UTC-7 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.
If it is midday in Seoul, what time is it in Los Angeles?: It is 20:00 in Los Angeles, still on the previous day. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Seoul and Los Angeles use?: Seoul uses Asia/Seoul, currently UTC+9, and Los Angeles uses America/Los_Angeles, currently UTC-7 (PDT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.