5Z 613 then SA 343 at Johannesburg
Margate → Johannesburg → Cape Town
Timetable, Johannesburg time
16:105Z 613 from Margate at the gate
14:30SA 343 to Cape Town leaves the gate
22 h 20 apart on the timetable, overnight
SA 343 leaves 22 h 20 after 5Z 613 arrives on the timetable: more than half a day, so not a connection we count.