SA 538 then SA 319 at Johannesburg
Durban → Johannesburg → Cape Town
Timetable, Johannesburg time
10:20SA 538 from Durban at the gate
09:25SA 319 to Cape Town leaves the gate
23 h 05 apart on the timetable, overnight
SA 319 leaves 23 h 05 after SA 538 arrives on the timetable: more than half a day, so not a connection we count.