4Z 45 then FA 420 at Johannesburg
LAD → Johannesburg → Durban
Timetable, Johannesburg time
17:504Z 45 from LAD at the gate
17:05FA 420 to Durban leaves the gate
23 h 15 apart on the timetable, overnight
FA 420 leaves 23 h 15 after 4Z 45 arrives on the timetable: more than half a day, so not a connection we count.