Johannesburg is 0-1 hour ahead of Paris. Paris uses Central European Time (CET/CEST, UTC+1/+2) while Johannesburg uses South Africa Standard Time (SAST, UTC+2). During standard time, Johannesburg is 1 hour ahead; during daylight saving time, both are on the same time.
South Africa does not observe daylight saving time, while France does, so the difference varies seasonally.
Best calling time: 8:00 AM - 5:00 PM Paris time. This corresponds to 9:00 AM - 6:00 PM in Johannesburg during standard time, with minimal adjustment needed.
Paris and Johannesburg are major business hubs on different continents. Air France operates direct flights between the cities in about 11 hours. France has significant business interests in South Africa across various sectors.