South Korea
Seoul

South Korea

United States
Boston

United States

Seoul to Boston Time Difference

Boston is 13 hours behind Seoul

SeoulSouth Korea
2:38 PM
Thursday, April 2, 2026
UTC+9
BostonUnited States
1:38 AM
Thursday, April 2, 2026
UTC-4

Seoul vs Boston — At a Glance

Seoul
Boston
Time Zone
UTC+9
UTC-4
Currency
KRW
USD
Language
Korean
English
Dial Code
+82
+1
Hub Type
tech
tech

Seoul to Boston — Hour-by-Hour

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

About Seoul and Boston

Seoul (population: 9.7M) is known for Samsung and LG headquarters, K-pop culture, Gangnam, and rapid tech innovation. Boston (population: 0.68M) is known for Harvard, MIT, biotech industry, and American history.

Business Hours Overlap

Seoul and Boston are both prominent tech cities. Remote engineering teams often use asynchronous workflows due to the 13-hour gap, with code handoffs during the overlap window.

Calling Between Cities

With 13 hours between Seoul (+82) and Boston (+1), finding a mutually convenient calling time is tricky. Consider scheduling calls in advance rather than calling spontaneously.

Currency

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

Language

Seoul primarily speaks Korean, while Boston speaks English. For business communication, English is commonly used as a bridge language in international settings.

Use our world clock tool to compare Seoul and Boston visually, or browse more timezone conversions.

Frequently Asked Questions

What is the time difference between Seoul and Boston?

Boston, United States is 13 hours behind Seoul, South Korea. Seoul is in the Asia/Seoul timezone (UTC+9) and Boston is in the America/New York timezone (UTC-4).

When it's noon in Seoul, what time is it in Boston?

When it's 12:00 PM (noon) in Seoul, it's 11:00 PM in Boston.

What is the best time to call Boston from Seoul?

The best time to call Boston from Seoul is during the overlapping business hours. When it's 9 AM in Seoul, it's 8:00 PM in Boston. Aim for late morning to early afternoon in Seoul for the best chance of reaching someone during working hours.

What currency does Boston use?

Boston, United States uses USD. Seoul uses KRW. You will need to check the current exchange rate for transactions between the two.

What language is spoken in Boston?

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

How do I dial Boston from Seoul?

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

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