Istanbul and Johannesburg Time Zone Comparison
Istanbul and Johannesburg are two major cities that sit in noticeably different time zones. Istanbul is Turkey's largest city and historic capital, uniquely straddling Europe and Asia across the Bosphorus strait. Johannesburg is South Africa's largest city and the financial center of one of the continent's biggest economies, and while it isn't the capital, it's the country's most economically influential city.
Johannesburg is always 1 hour behind Istanbul, with no seasonal change, since neither city's daylight saving rules shift this relationship.
With such a small gap, scheduling a call between Istanbul and Johannesburg is easy — a normal business-hours slot works for both sides on the same calendar day.