4Z 791 then SA 303 at Johannesburg
Port Elizabeth → Johannesburg → Cape Town
Timetable, Johannesburg time
07:004Z 791 from Port Elizabeth at the gate
06:05SA 303 to Cape Town leaves the gate
23 h 05 apart on the timetable, overnight
SA 303 leaves 23 h 05 after 4Z 791 arrives on the timetable: more than half a day, so not a connection we count.