4Z 556 then FA 232 at Johannesburg
Durban → Johannesburg → Port Elizabeth
Timetable, Johannesburg time
18:104Z 556 from Durban at the gate
17:15FA 232 to Port Elizabeth leaves the gate
23 h 05 apart on the timetable, overnight
FA 232 leaves 23 h 05 after 4Z 556 arrives on the timetable: more than half a day, so not a connection we count.