DT 575 then FN 8334 at Johannesburg
Luanda → Johannesburg → Harare
Timetable, Johannesburg time
23:15DT 575 from Luanda at the gate
14:35FN 8334 to Harare leaves the gate
15 h 20 apart on the timetable, overnight
FN 8334 leaves 15 h 20 after DT 575 arrives on the timetable: more than half a day, so not a connection we count.