4Z 824 then 4Z 921 at Johannesburg
Mpumalanga → Johannesburg → Cape Town
Timetable, Johannesburg time
09:204Z 824 from Mpumalanga at the gate
07:304Z 921 to Cape Town leaves the gate
22 h 10 apart on the timetable, overnight
4Z 921 leaves 22 h 10 after 4Z 824 arrives on the timetable: more than half a day, so not a connection we count.