Budapest is 6 hours ahead of Medellín
Best overlap: 8:00 AM to 12:00 PM in Medellín is 2:00 PM to 6:00 PM in Budapest.
8:00 AM to 12:00 PM in Medellín is when Budapest is also working, at 2:00 PM to 6:00 PM their time. You've got a decent 4-hour window. Set a recurring time near 8:00 AM in Medellín (2:00 PM in Budapest) and stick to it. Because only Budapest changes its clocks, the overlap above isn't fixed; expect a one-hour shift when Budapest enters or leaves daylight saving.