Shanghai is 3 hours ahead of Islamabad
Best overlap: 8:00 AM to 3:00 PM in Islamabad is 11:00 AM to 6:00 PM in Shanghai.
Plan around 8:00 AM to 3:00 PM in Islamabad, which is 11:00 AM to 6:00 PM in Shanghai, to catch everyone during office hours. Shanghai is 3 hours ahead of Islamabad, but with 7 hours of common ground you can hold morning or afternoon meetings without anyone working odd hours.