FA 277 then ZN 304 at Johannesburg
Durban → Johannesburg → Lusaka
Timetable, Johannesburg time
10:15FA 277 from Durban at the gate
10:10ZN 304 to Lusaka leaves the gate
23 h 55 apart on the timetable, overnight
ZN 304 leaves 23 h 55 after FA 277 arrives on the timetable: more than half a day, so not a connection we count.