SA 25 then SA 303 at Johannesburg
Harare → Johannesburg → Cape Town
Timetable, Johannesburg time
07:55SA 25 from Harare at the gate
06:05SA 303 to Cape Town leaves the gate
22 h 10 apart on the timetable, overnight
SA 303 leaves 22 h 10 after SA 25 arrives on the timetable: more than half a day, so not a connection we count.