Medellín is 5 hours behind Accra
Best overlap: 1:00 PM to 6:00 PM in Accra is 8:00 AM to 1:00 PM in Medellín.
Both offices are open during 1:00 PM to 6:00 PM Accra time, which is 8:00 AM to 1:00 PM in Medellín. Roughly 5 hours of common time means scheduling is manageable; just avoid the very edges of the window.