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TimezonePair
Home·Seoul·Seoul × Seattle
Prime meridian·:: UTC·

Seoul×Seattle

South Korea · KR
Seoul
—:—
Asia/Seoul·
No DST
United States · US
Seattle
—:—
America/Los_Angeles·
DST active

Seoul is 16 hours behind Seattle. Scrub a time, meet in the overlap, ship the invite — before the kettle boils.

◊ at a glance

Three numbers. The ones that decide the meeting.

01
Difference
16h behind
Seoul vs Seattle
02
Overlap
0h
Business hours 09:00 – 17:00
03
UTC offsets
GMT+9 / GMT-7
KST · PDT
04
Flight
10h 17m
8,322 km · great-circle, non-stop cruise
◊ the overlap

When the world meets at work.

24-hour overlap
No overlap in working hours
Seoul
—:—
0
3
6
9
12
15
18
21
Seattle
—:—
9
12
15
18
21
0
3
6
Scrub a meeting time14:00 Seoul
Same moment in Seattle22:00 Seattle
◊ hour by hour

Read the day in both zones.

Share this meeting
timezonepair.com/from/seoul/to/seattle?t=14&a=A&d=2026-04-27&dur=60
14:00 Seoul22:00 Seattle
Full 24-hour reference
SeoulSeattle
00:00
08:00
01:00
09:00Seattle only
02:00
10:00Seattle only
03:00
11:00Seattle only
04:00
12:00Seattle only
05:00
13:00Seattle only
06:00
14:00Seattle only
07:00
15:00Seattle only
08:00
16:00Seattle only
09:00Seoul only
17:00
10:00Seoul only
18:00
11:00Seoul only
19:00
12:00Seoul only
20:00
13:00Seoul only
21:00
14:00Seoul only
22:00
15:00Seoul only
23:00
16:00Seoul only
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
◊ common questions

Quick answers. Before you book the call.

What's the time difference between Seoul and Seattle?

Seoul is 16 hours behind Seattle. Seoul runs on GMT+9 and Seattle on GMT-7. The gap can shift by an hour when either side enters or leaves daylight saving — the live clocks above always reflect the current offset.

When's the best time to schedule a meeting?

Standard 09:00–17:00 workdays don't intersect. Most teams compromise with one side meeting early (before 09:00) or late (after 17:00).

Does daylight saving time change the difference?

Yes, if either city observes DST. When one side shifts and the other doesn't, the gap changes by one hour. The DST badges under each clock show whether each zone is currently shifted and when the next transition lands.

How far is Seoul from Seattle?

About 8,322 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 10h 17m, not counting airport time, winds, or routing around restricted airspace.

Can I send this meeting time as a calendar invite?

Yes. Pick a time on the slider above, open the meeting card, customize the title and duration, then download the .ics file. It imports cleanly into Google Calendar, Outlook, and Apple Calendar with the correct timezone attached.

◊ keep going

One pair down. 299 cities to go.

Every pair in 300 cities runs the same clocks, the same overlap, the same one-click invite. Pick another.

SEOUL · Asia/Seoul
GMT+9 · 37.57°, 126.98°

SEATTLE · America/Los_Angeles
GMT-7 · 47.61°, -122.33°

0h shared · 16h behind