United States
South Korea
Seattle to Seoul Time Difference
Seoul is 16 hours ahead of Seattle
Seattle vs Seoul — At a Glance
Seattle to Seoul — Hour-by-Hour
About Seattle and Seoul
Seattle (population: 0.74M) is known for Amazon, Microsoft, Boeing, coffee culture, and the Pacific Northwest. Seoul (population: 9.7M) is known for Samsung and LG headquarters, K-pop culture, Gangnam, and rapid tech innovation.
Business Hours Overlap
Seattle and Seoul are both prominent tech cities. Remote engineering teams often use asynchronous workflows due to the 16-hour gap, with code handoffs during the overlap window.
Calling Between Cities
With 16 hours between Seattle (+1) and Seoul (+82), finding a mutually convenient calling time is tricky. Consider scheduling calls in advance rather than calling spontaneously.
Currency
Seattle uses USD while Seoul uses KRW. Check current exchange rates before making payments or transferring funds between the two cities.
Language
Seattle primarily speaks English, while Seoul speaks Korean. For business communication, English is commonly used as a bridge language in international settings.
Use our world clock tool to compare Seattle and Seoul visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between Seattle and Seoul?
Seoul, South Korea is 16 hours ahead of Seattle, United States. Seattle is in the America/Los Angeles timezone (UTC-7) and Seoul is in the Asia/Seoul timezone (UTC+9).
When it's noon in Seattle, what time is it in Seoul?
When it's 12:00 PM (noon) in Seattle, it's 4:00 AM in Seoul.
What is the best time to call Seoul from Seattle?
The best time to call Seoul from Seattle is during the overlapping business hours. When it's 9 AM in Seattle, it's 1:00 AM in Seoul. Aim for late morning to early afternoon in Seattle for the best chance of reaching someone during working hours.
What currency does Seoul use?
Seoul, South Korea uses KRW. Seattle uses USD. You will need to check the current exchange rate for transactions between the two.
What language is spoken in Seoul?
The primary language in Seoul is Korean. English is widely used for international business communication.
How do I dial Seoul from Seattle?
To call Seoul from Seattle, dial your international access code followed by +82 and the local number. Seattle uses country code +1 and Seoul uses +82.
