Islamabad is 3 hours ahead of Johannesburg
Best overlap: 8:00 AM to 3:00 PM in Johannesburg is 11:00 AM to 6:00 PM in Islamabad.
The hours that work for both Johannesburg and Islamabad are 8:00 AM to 3:00 PM (Johannesburg) and 11:00 AM to 6:00 PM (Islamabad). A 7-hour overlap gives you real choice here — early or late in the window both work comfortably.