Islamabad is 3 hours behind Shenzhen
Best overlap: 11:00 AM to 6:00 PM in Shenzhen is 8:00 AM to 3:00 PM in Islamabad.
Keep meetings inside 11:00 AM to 6:00 PM in Shenzhen — that maps to 8:00 AM to 3:00 PM in Islamabad. Because you share 7 hours of the workday, there's no need to compromise; book the time that suits the meeting, not the map.