Denver is typically 16 hours behind Seoul. When it's midnight in Seoul, it's 8:00 AM the previous day in Denver. South Korea does not observe daylight saving time, but Denver does.
During US daylight saving time (March to November), the difference is 15 hours. During US standard time (November to March), the difference increases to 16 hours.
Optimal meeting window: 4:00 AM - 6:00 AM Denver time (7:00 PM - 9:00 PM Seoul, or 8:00 PM - 10:00 PM in winter). Very early morning Denver catches evening Seoul.
Colorado's outdoor recreation industry has connections to South Korea's growing adventure tourism market, with ski resorts and hiking experiences attracting Korean visitors.