4Z 778 then FA 691 at Johannesburg
Sishen → Johannesburg → Cape Town
Timetable, Johannesburg time
19:004Z 778 from Sishen at the gate
18:30FA 691 to Cape Town leaves the gate
23 h 30 apart on the timetable, overnight
FA 691 leaves 23 h 30 after 4Z 778 arrives on the timetable: more than half a day, so not a connection we count.