4Z 121 then GE 207 at Johannesburg
Windhoek → Johannesburg → Durban
Timetable, Johannesburg time
11:104Z 121 from Windhoek at the gate
17:55GE 207 to Durban leaves the gate
6 h 45 apart on the timetable
Johannesburg’s board gives a departure time for only about 59% of its flights, so many days show no gate time.
The last days
4Z 121 and GE 207 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.