4Z 37 then SA 303 at Johannesburg
Dar es Salaam → Johannesburg → Cape Town
Timetable, Johannesburg time
06:104Z 37 from Dar es Salaam at the gate
06:05SA 303 to Cape Town leaves the gate
23 h 55 apart on the timetable, overnight
SA 303 leaves 23 h 55 after 4Z 37 arrives on the timetable: more than half a day, so not a connection we count.