SA 546 then FA 294 at Johannesburg
Durban → Johannesburg → Cape Town
Timetable, Johannesburg time
12:10SA 546 from Durban at the gate
10:15FA 294 to Cape Town leaves the gate
22 h 05 apart on the timetable, overnight
FA 294 leaves 22 h 05 after SA 546 arrives on the timetable: more than half a day, so not a connection we count.