SA 25 then 4Z 921 at Johannesburg
Harare → Johannesburg → Cape Town
Timetable, Johannesburg time
07:55SA 25 from Harare at the gate
07:304Z 921 to Cape Town leaves the gate
23 h 35 apart on the timetable, overnight
4Z 921 leaves 23 h 35 after SA 25 arrives on the timetable: more than half a day, so not a connection we count.