Medellín is 6 hours behind Munich
Best overlap: 2:00 PM to 6:00 PM in Munich is 8:00 AM to 12:00 PM in Medellín.
The hours that work for both Munich and Medellín are 2:00 PM to 6:00 PM (Munich) and 8:00 AM to 12:00 PM (Medellín). The shared window is roughly 4 hours; treat its midpoint as the default and you'll keep both teams happy. Note the seasonal wrinkle: when Munich is on daylight saving and Medellín isn't, the gap between them grows or shrinks by an hour.