Medellín is 7 hours behind Helsinki
Best overlap: 3:00 PM to 6:00 PM in Helsinki is 8:00 AM to 11:00 AM in Medellín.
If you set up a recurring sync, 3:00 PM to 6:00 PM in Helsinki (8:00 AM to 11:00 AM in Medellín) is the natural home for it. Medellín is 7 hours behind Helsinki, leaving about 3 hours of daily overlap — enough for most meetings if you don't leave them too late in the day. Keep an eye on the calendar — Helsinki observes daylight saving and Medellín doesn't, which nudges this window by an hour twice a year.