FA 120 then 4Z 837 at Johannesburg
Cape Town → Johannesburg → Mpumalanga
Timetable, Johannesburg time
18:25FA 120 from Cape Town at the gate
18:104Z 837 to Mpumalanga leaves the gate
23 h 45 apart on the timetable, overnight
4Z 837 leaves 23 h 45 after FA 120 arrives on the timetable: more than half a day, so not a connection we count.