FA 400 then 4Z 306 at Johannesburg
Durban → Johannesburg → Kasane
Timetable, Johannesburg time
11:55FA 400 from Durban at the gate
11:504Z 306 to Kasane leaves the gate
23 h 55 apart on the timetable, overnight
4Z 306 leaves 23 h 55 after FA 400 arrives on the timetable: more than half a day, so not a connection we count.