Medellín is 8 hours behind Moscow
Best overlap: 4:00 PM to 6:00 PM in Moscow is 8:00 AM to 10:00 AM in Medellín.
The hours that work for both Moscow and Medellín are 4:00 PM to 6:00 PM (Moscow) and 8:00 AM to 10:00 AM (Medellín). Medellín is 8 hours behind Moscow, which leaves a narrow 2-hour window. Treat 4:00 PM in Moscow (8:00 AM in Medellín) as the time and build around it.