4Z 804 then SA 327 at Johannesburg
Potgietersrus → Johannesburg → Cape Town
Timetable, Johannesburg time
11:554Z 804 from Potgietersrus at the gate
11:10SA 327 to Cape Town leaves the gate
23 h 15 apart on the timetable, overnight
SA 327 leaves 23 h 15 after 4Z 804 arrives on the timetable: more than half a day, so not a connection we count.