Boston is typically 14 hours behind Seoul. When it's 10:00 PM in Seoul, it's 8:00 AM the same day in Boston. South Korea does not observe daylight saving time, but Boston does.
During US daylight saving time (March to November), the difference is 13 hours. During US standard time (November to March), the difference increases to 14 hours.
Optimal meeting window: 6:00 AM - 8:00 AM Boston time (7:00 PM - 9:00 PM Seoul, or 8:00 PM - 10:00 PM in winter). Early morning Boston catches evening Seoul.
Boston's renowned universities attract many Korean students. Harvard and MIT have research collaborations with Korean institutions like KAIST and Seoul National University.