4Z 950 then 4Z 450 at Johannesburg
Cape Town → Johannesburg → Blantyre
Timetable, Johannesburg time
12:004Z 950 from Cape Town at the gate
11:154Z 450 to Blantyre leaves the gate
23 h 15 apart on the timetable, overnight
4Z 450 leaves 23 h 15 after 4Z 950 arrives on the timetable: more than half a day, so not a connection we count.