ZN 305 then SA 313 at Johannesburg
Lusaka → Johannesburg → Cape Town
Timetable, Johannesburg time
09:25ZN 305 from Lusaka at the gate
08:10SA 313 to Cape Town leaves the gate
22 h 45 apart on the timetable, overnight
SA 313 leaves 22 h 45 after ZN 305 arrives on the timetable: more than half a day, so not a connection we count.