Accra is 5 hours behind Islamabad
Best overlap: 1:00 PM to 6:00 PM in Islamabad is 8:00 AM to 1:00 PM in Accra.
Islamabad and Accra overlap from 1:00 PM to 6:00 PM (Islamabad) to the equivalent 8:00 AM to 1:00 PM in Accra — that's your meeting window. The shared window is roughly 5 hours; treat its midpoint as the default and you'll keep both teams happy.