SA 566 then 4Z 929 at Johannesburg
Durban → Johannesburg → Cape Town
Timetable, Johannesburg time
18:10SA 566 from Durban at the gate
17:404Z 929 to Cape Town leaves the gate
23 h 30 apart on the timetable, overnight
4Z 929 leaves 23 h 30 after SA 566 arrives on the timetable: more than half a day, so not a connection we count.