Medellín is 6 hours behind Geneva
Best overlap: 2:00 PM to 6:00 PM in Geneva is 8:00 AM to 12:00 PM in Medellín.
The hours that work for both Geneva and Medellín are 2:00 PM to 6:00 PM (Geneva) and 8:00 AM to 12:00 PM (Medellín). The overlap sits at about 4 hours; aim for the heart of it so the call isn't too early for one team or too late for the other. One seasonal catch: Geneva springs forward and falls back, but Medellín doesn't, so the gap changes by an hour for several months of the year.