4Z 780 then SA 359 at Johannesburg
Sishen → Johannesburg → Cape Town
Timetable, Johannesburg time
18:304Z 780 from Sishen at the gate
17:30SA 359 to Cape Town leaves the gate
23 h apart on the timetable, overnight
SA 359 leaves 23 h after 4Z 780 arrives on the timetable: more than half a day, so not a connection we count.