Seattle to Seoul Time Difference and Meeting Times
Seoul is 17 hours ahead of Seattle.
Best meeting time
Everyone is in working hours from 4:00 PM to 5:00 PM (Los Angeles time).
Working hours are 9 AM to 5 PM in each city. Times are for Thursday, 5 November 2026.
Seattle 6 AM to 10 PM in Seoul
Each row is a time in Seattle, United States and the matching time in Seoul, South Korea.
| Seattle | Seoul | Day | Fit |
|---|---|---|---|
| 6:00 AM | 11:00 PM | Same day | Outside working hours |
| 7:00 AM | 12:00 AM | +1 | Outside working hours |
| 8:00 AM | 1:00 AM | +1 | Outside working hours |
| 9:00 AM | 2:00 AM | +1 | Outside working hours |
| 10:00 AM | 3:00 AM | +1 | Outside working hours |
| 11:00 AM | 4:00 AM | +1 | Outside working hours |
| 12:00 PM | 5:00 AM | +1 | Outside working hours |
| 1:00 PM | 6:00 AM | +1 | Outside working hours |
| 2:00 PM | 7:00 AM | +1 | Early or late for one city |
| 3:00 PM | 8:00 AM | +1 | Early or late for one city |
| 4:00 PM | 9:00 AM | +1 | Both in working hours |
| 5:00 PM | 10:00 AM | +1 | Early or late for one city |
| 6:00 PM | 11:00 AM | +1 | Early or late for one city |
| 7:00 PM | 12:00 PM | +1 | Early or late for one city |
| 8:00 PM | 1:00 PM | +1 | Early or late for one city |
| 9:00 PM | 2:00 PM | +1 | Outside working hours |
| 10:00 PM | 3:00 PM | +1 | Outside working hours |
Each row is a time in Seattle, United States and the matching time in Seoul, South Korea.
Daylight saving and this time difference
Only Seattle uses daylight saving time, so the gap changes twice a year when its clocks move.
UTC offsets right now: Seattle is UTCUTC-8, and Seoul is UTCUTC+9 on Thursday, 5 November 2026. Check the date of your meeting in the planner, since the gap can change for a few weeks each year.
To compare more than two cities, open the meeting planner. To see the gap between any two cities, try the time difference calculator.
Related conversions
Frequently asked questions
What is the time difference between Seattle and Seoul?
Seoul is 17 hours ahead of Seattle. The comparison uses Thursday, 5 November 2026, so the result is correct for that date.
When is the best time for a meeting between Seattle and Seoul?
Everyone is in working hours from 4:00 PM to 5:00 PM (Los Angeles time).
Does the time difference between Seattle and Seoul change with daylight saving?
Only Seattle uses daylight saving time, so the gap changes twice a year when its clocks move.