LH 578 then SA 539 at Johannesburg
Munich → Johannesburg → Durban
Timetable, Johannesburg time
09:55LH 578 from Munich at the gate
09:20SA 539 to Durban leaves the gate
23 h 25 apart on the timetable, overnight
SA 539 leaves 23 h 25 after LH 578 arrives on the timetable: more than half a day, so not a connection we count.