SA 316 then 4Z 803 at Johannesburg
Cape Town → Johannesburg → Potgietersrus
Timetable, Johannesburg time
11:00SA 316 from Cape Town at the gate
09:354Z 803 to Potgietersrus leaves the gate
22 h 35 apart on the timetable, overnight
4Z 803 leaves 22 h 35 after SA 316 arrives on the timetable: more than half a day, so not a connection we count.