United States
Seattle

United States

South Korea
Incheon

South Korea

Seattle to Incheon Time Difference

Incheon is 16 hours ahead of Seattle

SeattleUnited States
8:53 PM
Wednesday, April 1, 2026
UTC-7
IncheonSouth Korea
12:53 PM
Thursday, April 2, 2026
UTC+9

Seattle vs Incheon — At a Glance

Seattle
Incheon
Time Zone
UTC-7
UTC+9
Currency
USD
KRW
Language
English
Korean
Dial Code
+1
+82
Hub Type
tech
trade

Seattle to Incheon — Hour-by-Hour

Seattle, United States
Incheon, South Korea
12:00 AM
4:00 PM
1:00 AM
5:00 PM
2:00 AM
6:00 PM
3:00 AM
7:00 PM
4:00 AM
8:00 PM
5:00 AM
9:00 PM
6:00 AM
10:00 PM
7:00 AM
11:00 PM
8:00 AM
12:00 AM(Apr 2)
9:00 AM
1:00 AM(Apr 2)
10:00 AM
2:00 AM(Apr 2)
11:00 AM
3:00 AM(Apr 2)
12:00 PM
4:00 AM(Apr 2)
1:00 PM
5:00 AM(Apr 2)
2:00 PM
6:00 AM(Apr 2)
3:00 PM
7:00 AM(Apr 2)
4:00 PM
8:00 AM(Apr 2)
5:00 PM
9:00 AM(Apr 2)
6:00 PM
10:00 AM(Apr 2)
7:00 PM
11:00 AM(Apr 2)
8:00 PM
12:00 PM(Apr 2)
9:00 PM
1:00 PM(Apr 2)
10:00 PM
2:00 PM(Apr 2)
11:00 PM
3:00 PM(Apr 2)

About Seattle and Incheon

Seattle (population: 0.74M) is known for Amazon, Microsoft, Boeing, coffee culture, and the Pacific Northwest. Incheon (population: 2.9M) is known for Incheon International Airport (Asia's top-rated), free economic zones, and tech parks.

Business Hours Overlap

The 16-hour gap means Seattle and Incheon have almost no standard-hours overlap. Early morning calls from Seattle or late evening calls from Incheon are the most practical options.

Calling Between Cities

With 16 hours between Seattle (+1) and Incheon (+82), finding a mutually convenient calling time is tricky. Consider scheduling calls in advance rather than calling spontaneously.

Currency

Seattle uses USD while Incheon uses KRW. Check current exchange rates before making payments or transferring funds between the two cities.

Language

Seattle primarily speaks English, while Incheon 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 Incheon visually, or browse more timezone conversions.

Frequently Asked Questions

What is the time difference between Seattle and Incheon?

Incheon, South Korea is 16 hours ahead of Seattle, United States. Seattle is in the America/Los Angeles timezone (UTC-7) and Incheon is in the Asia/Seoul timezone (UTC+9).

When it's noon in Seattle, what time is it in Incheon?

When it's 12:00 PM (noon) in Seattle, it's 4:00 AM in Incheon.

What is the best time to call Incheon from Seattle?

The best time to call Incheon from Seattle is during the overlapping business hours. When it's 9 AM in Seattle, it's 1:00 AM in Incheon. Aim for late morning to early afternoon in Seattle for the best chance of reaching someone during working hours.

What currency does Incheon use?

Incheon, 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 Incheon?

The primary language in Incheon is Korean. English is widely used for international business communication.

How do I dial Incheon from Seattle?

To call Incheon from Seattle, dial your international access code followed by +82 and the local number. Seattle uses country code +1 and Incheon uses +82.

Related City Conversions