Hyderabad is 0.5 hours ahead of Karachi
Best overlap: 8:00 AM to 6:00 PM in Karachi is 8:30 AM to 6:30 PM in Hyderabad.
Plan around 8:00 AM to 6:00 PM in Karachi, which is 8:30 AM to 6:30 PM in Hyderabad, to catch everyone during office hours. That's a roomy 10 hours of common time each day, so finding a slot that suits everyone is rarely a problem.