Best overlap: 2:00 PM to 6:00 PM in Amsterdam is 8:00 AM to 12:00 PM in Medellín.
Your shared working hours run 2:00 PM to 6:00 PM in Amsterdam (8:00 AM to 12:00 PM in Medellín). Roughly 4 hours of common time means scheduling is manageable; just avoid the very edges of the window. Because only Amsterdam changes its clocks, the overlap above isn't fixed; expect a one-hour shift when Amsterdam enters or leaves daylight saving.
London to New York is five hours apart, except for the five weeks a year when it isn't. Exact overlap windows for every US zone, the 2026 DST mismatch dates, and where to put the recurring sync. -