4Z 177 then SA 337 at Johannesburg
Gaborone → Johannesburg → Cape Town
Timetable, Johannesburg time
13:254Z 177 from Gaborone at the gate
13:00SA 337 to Cape Town leaves the gate
23 h 35 apart on the timetable, overnight
SA 337 leaves 23 h 35 after 4Z 177 arrives on the timetable: more than half a day, so not a connection we count.