All Comparisons
Time Difference: Seoul vs Boston
Current time in both cities, business hours overlap, and best meeting times for teams working across Seoul and Boston.
Seoul
—
South Korea
Boston
—
United States
Boston is 13h behind Seoul
UTC offset: Seoul +9h · Boston -4h
Business Hours Overlap
Hours when both Seoul and Boston are in business hours (9 AM–5 PM local).
00:00 UTC12:00 UTC23:00 UTC
Both in business hours Seoul only Boston only
No business hours overlap
Seoul and Boston have no shared 9 AM–5 PM window. Consider early morning or late evening calls.
Convert a Time
Enter a time in Seoul to see what it is in Boston.
Working with teammates in Seoul and Boston?
Timely automatically converts times in Slack so everyone sees messages in their local timezone — no mental math required.