4Z 271 then SA 531 at Johannesburg
Maputo → Johannesburg → Durban
Timetable, Johannesburg time
08:254Z 271 from Maputo at the gate
07:30SA 531 to Durban leaves the gate
23 h 05 apart on the timetable, overnight
SA 531 leaves 23 h 05 after 4Z 271 arrives on the timetable: more than half a day, so not a connection we count.