4Z 756 then FA 127 at Johannesburg
Mthatha → Johannesburg → Cape Town
Timetable, Johannesburg time
19:004Z 756 from Mthatha at the gate
18:35FA 127 to Cape Town leaves the gate
23 h 35 apart on the timetable, overnight
FA 127 leaves 23 h 35 after 4Z 756 arrives on the timetable: more than half a day, so not a connection we count.