4Z 758 then SA 347 at Johannesburg
Mthatha → Johannesburg → Cape Town
Timetable, Johannesburg time
15:354Z 758 from Mthatha at the gate
15:15SA 347 to Cape Town leaves the gate
23 h 40 apart on the timetable, overnight
SA 347 leaves 23 h 40 after 4Z 758 arrives on the timetable: more than half a day, so not a connection we count.