4Z 203 then SA 555 at Johannesburg
Pemba → Johannesburg → Durban
Timetable, Johannesburg time
14:204Z 203 from Pemba at the gate
13:40SA 555 to Durban leaves the gate
23 h 20 apart on the timetable, overnight
SA 555 leaves 23 h 20 after 4Z 203 arrives on the timetable: more than half a day, so not a connection we count.