SA 556 then FA 512 at Johannesburg
Durban → Johannesburg → Cape Town
Timetable, Johannesburg time
14:10SA 556 from Durban at the gate
12:50FA 512 to Cape Town leaves the gate
22 h 40 apart on the timetable, overnight
FA 512 leaves 22 h 40 after SA 556 arrives on the timetable: more than half a day, so not a connection we count.