4Z 922 then SA 62 at Johannesburg
Cape Town → Johannesburg → Lusaka
Timetable, Johannesburg time
11:104Z 922 from Cape Town at the gate
10:40SA 62 to Lusaka leaves the gate
23 h 30 apart on the timetable, overnight
SA 62 leaves 23 h 30 after 4Z 922 arrives on the timetable: more than half a day, so not a connection we count.