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Time difference between Seoul and Seattle

Seattle is 16 hours behind Seoul.

Seoul
South Korea · Korean Standard Time
4:42 PM
Wednesday, October 21, 2026
Seattle
United States · Pacific Daylight Time
12:42 AM
Wednesday, October 21, 2026
Compare more placesSeattle to Seoul

Seoul to Seattle time converter

Green rows are office hours in both places; light green rows are when both are awake.

SeoulSeattle
12:00 AM8:00 AM (previous day)
1:00 AM9:00 AM (previous day)
2:00 AM10:00 AM (previous day)
3:00 AM11:00 AM (previous day)
4:00 AM12:00 PM (previous day)
5:00 AM1:00 PM (previous day)
6:00 AM2:00 PM (previous day)
7:00 AM3:00 PM (previous day)
8:00 AM4:00 PM (previous day)
9:00 AM5:00 PM (previous day)
10:00 AM6:00 PM (previous day)
11:00 AM7:00 PM (previous day)
12:00 PM8:00 PM (previous day)
1:00 PM9:00 PM (previous day)
2:00 PM10:00 PM (previous day)
3:00 PM11:00 PM (previous day)
4:00 PM12:00 AM
5:00 PM1:00 AM
6:00 PM2:00 AM
7:00 PM3:00 AM
8:00 PM4:00 AM
9:00 PM5:00 AM
10:00 PM6:00 AM
11:00 PM7:00 AM

Questions

What is the time difference between Seoul and Seattle?

Seattle is 16 hours behind Seoul. Seoul is on UTC+9 and Seattle is on UTC−7.

What time is it in Seattle when it is 9 AM in Seoul?

When it is 9:00 AM in Seoul, it is 5:00 PM the previous day in Seattle.

When is the best time to call Seattle from Seoul?

The best time to call or meet is 9:00 AM–10:00 AM in Seoul (5:00 PM–6:00 PM in Seattle), when both places are in normal office hours.

Does the time difference between Seoul and Seattle change?

Yes. Because of daylight saving time, the difference changes on Sunday, November 1, 2026, when Seattle will be 17 hours behind Seoul.

Seoul is 16 hours ahead of Seattle. More: time in Seoul · time in Seattle

Time difference from Seoul to other cities

All Seoul time differences →

Time difference from Seattle