Meeting time

Best time to meet: Seattle and Seoul

Seattle is 17 hours behind Seoul right now. Their working days overlap for 1 hour: 4 PM to 5 PM in Seattle, which is 9 AM to 10 AM in Seoul. The easiest time to meet is 4 PM in Seattle (9 AM in Seoul).

Tue 7:55 AMSeattle · Pacific Standard TimeWed 12:55 AMSeoul · Korean Standard Time
Start a free meetingSend a booking link that shows your times in their zone

Hour by hour

With the clocks as they are on November 10, 2026, Seattle time on the left. A working day here is 9 AM to 5 PM.

SeattleSeoul
6 AM11 PMBoth off
7 AM12 AM next dayBoth off
8 AM1 AM next dayBoth off
9 AM2 AM next daySeattle at work
10 AM3 AM next daySeattle at work
11 AM4 AM next daySeattle at work
12 PM5 AM next daySeattle at work
1 PM6 AM next daySeattle at work
2 PM7 AM next daySeattle at work
3 PM8 AM next daySeattle at work
4 PM9 AM next dayEasiest time
5 PM10 AM next daySeoul at work
6 PM11 AM next daySeoul at work
7 PM12 PM next daySeoul at work
8 PM1 PM next daySeoul at work
9 PM2 PM next daySeoul at work
10 PM3 PM next daySeoul at work

When the clocks change

The gap moves when either city changes its clocks. The next twelve months:

DatesSeattle isBoth at work (Seattle time)Easiest (Seattle / Seoul)
Now to March 14, 202717 hours behind4 PM–5 PM (1 hour)4 PM / 9 AM
March 14, 2027 to November 7, 2027
clocks in Seattle go forward		16 hours behindNone4:30 PM / 8:30 AM
November 7, 2027 onward
clocks in Seattle go back		17 hours behind4 PM–5 PM (1 hour)4 PM / 9 AM

Seattle keeps the same clock as San Francisco; Seoul keeps the same clock as Tokyo.

Questions people ask

What time is it in Seoul when it is 9 AM in Seattle?
2 AM in Seoul, the next day, while Seattle is 17 hours behind.
When is the best time for a call between Seattle and Seoul?
4 PM in Seattle, which is 9 AM in Seoul. Both cities are at work from 4 PM to 5 PM Seattle time.
Does the time difference between Seattle and Seoul change during the year?
Yes — it changes 2 times in the next twelve months, when the clocks go forward or back; the dates are in the table above.

More cities

New York and Seattle5 hours of shared working day · meet at 1:30 PM New York timeLondon and SeattleNo shared working hours · fairest at 4:30 PM London timeNew York and SeoulNo shared working hours · fairest at 5:30 PM New York timeLondon and SeoulNo shared working hours · fairest at 8 AM London timeBangalore and SeattleNo shared working hours · fairest at 7:30 AM Bangalore timeSingapore and SeattleNo shared working hours · fairest at 8:30 AM Singapore timeSan Francisco and Seoul1 hour of shared working day · meet at 4 PM San Francisco timeLos Angeles and Seoul1 hour of shared working day · meet at 4 PM Los Angeles timeBangalore and Seoul4 hours 30 minutes of shared working day · meet at 10 AM Bangalore timeSingapore and Seoul7 hours of shared working day · meet at 10 AM Singapore timeSydney and Seattle3 hours of shared working day · meet at 10 AM Sydney timeTokyo and Seattle1 hour of shared working day · meet at 9 AM Tokyo time

Every city from Seattle · Every city from Seoul · All cities · Plan across more than two cities

Try Meetful

Meetings that take their own notes

Free video meetings in the browser: every line of the transcript under the name of who said it, and the summary and action items when you hang up. Nothing to install — guests just open the link.

Try Meetful freeSee what it does