Seattle to Seoul Time Converter
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Quick answers
Selected conversion
5:00 am05:00 PDT (UTC-7), Oct 18, 2026 = 9:00 pm21:00 KST (UTC+9), Oct 18, 2026
Seattle is 16 hours behind Seoul.
How the time difference changes
For most of the year, Seattle is 16 hours behind Seoul. From Nov 1, 2026 to Mar 14, 2027, Seattle is 17 hours behind Seoul.
For most of the year, working hours of 9:00 am to 6:00 pm in Seattle correspond to 1:00 am (next day) to 10:00 am (next day) in Seoul. At other times of the year, working hours of 9:00 am to 6:00 pm in Seattle correspond to 2:00 am (next day) to 11:00 am (next day) in Seoul.For most of the year, working hours of 09:00 to 18:00 in Seattle correspond to 01:00 (next day) to 10:00 (next day) in Seoul. At other times of the year, working hours of 09:00 to 18:00 in Seattle correspond to 02:00 (next day) to 11:00 (next day) in Seoul.
Compare Seattle time with Seoul time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
PDT (Pacific Daylight Time) is 16 hours behind KST (Korea Standard Time).
5:00 am05:00 in Seattle, WA, USA is 9:00 pm21:00 in Seoul, South Korea
Seattle to Seoul call time
Best time for a conference call or a meeting is between 5pm-6pm17:00-18:00 in Seattle which corresponds to 9am-10am09:00-10:00 in Seoul (next day)
5:00 am05:00 PDT (Pacific Daylight Time) (Seattle, WA, USA). Offset UTC -7:00 hours
9:00 pm21:00 KST (Korea Standard Time) (Seoul, South Korea). Offset UTC +9:00 hours
5:00 am05:00 Seattle, WA, USA / 9:00 pm21:00 Seoul, South Korea
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| Seattle, WA, USA | Seoul, South Korea |
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Seattle Time Zone and Facts
Time Zone
PST – Pacific Standard Time, UTC-8 (standard time)