UM 461 then SA 343 at Johannesburg
Harare → Johannesburg → Cape Town
Timetable, Johannesburg time
16:20UM 461 from Harare at the gate
14:30SA 343 to Cape Town leaves the gate
22 h 10 apart on the timetable, overnight
SA 343 leaves 22 h 10 after UM 461 arrives on the timetable: more than half a day, so not a connection we count.