4Z 764 then SA 337 at Johannesburg
Upington → Johannesburg → Cape Town
Timetable, Johannesburg time
13:404Z 764 from Upington at the gate
13:00SA 337 to Cape Town leaves the gate
23 h 20 apart on the timetable, overnight
SA 337 leaves 23 h 20 after 4Z 764 arrives on the timetable: more than half a day, so not a connection we count.