Seoul to Seattle Time Converter
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Quick answers
Selected conversion
9:00 pm21:00 KST (UTC+9), Oct 18, 2026 = 5:00 am05:00 PDT (UTC-7), Oct 18, 2026
Seoul is 16 hours ahead of Seattle.
How the time difference changes
For most of the year, Seoul is 16 hours ahead of Seattle. From Nov 1, 2026 to Mar 14, 2027, Seoul is 17 hours ahead of Seattle.
For most of the year, working hours of 9:00 am to 6:00 pm in Seoul correspond to 5:00 pm (previous day) to 2:00 am in Seattle. At other times of the year, working hours of 9:00 am to 6:00 pm in Seoul correspond to 4:00 pm (previous day) to 1:00 am in Seattle.For most of the year, working hours of 09:00 to 18:00 in Seoul correspond to 17:00 (previous day) to 02:00 in Seattle. At other times of the year, working hours of 09:00 to 18:00 in Seoul correspond to 16:00 (previous day) to 01:00 in Seattle.
Compare Seoul time with Seattle time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
KST (Korea Standard Time) is 16 hours ahead of PDT (Pacific Daylight Time).
9:00 pm21:00 in Seoul, South Korea is 5:00 am05:00 in Seattle, WA, USA
Seoul to Seattle call time
Best time for a conference call or a meeting is between 9am-10am09:00-10:00 in Seoul which corresponds to 5pm-6pm17:00-18:00 in Seattle (previous day)
9:00 pm21:00 KST (Korea Standard Time) (Seoul, South Korea). Offset UTC +9:00 hours
5:00 am05:00 PDT (Pacific Daylight Time) (Seattle, WA, USA). Offset UTC -7:00 hours
9:00 pm21:00 Seoul, South Korea / 5:00 am05:00 Seattle, WA, USA
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Seoul Time Zone and Facts
Time Zone
Seoul Facts
Seattle Time Zone and Facts
Time Zone
PST – Pacific Standard Time, UTC-8 (standard time)