SA 538 then 4Z 44 at Johannesburg
Durban → Johannesburg → Luanda
Timetable, Johannesburg time
10:20SA 538 from Durban at the gate
09:404Z 44 to Luanda leaves the gate
23 h 20 apart on the timetable, overnight
4Z 44 leaves 23 h 20 after SA 538 arrives on the timetable: more than half a day, so not a connection we count.