4Z 754 then 5Z 100 at Johannesburg
Mthatha → Johannesburg → Bloemfontain
Timetable, Johannesburg time
09:504Z 754 from Mthatha at the gate
06:255Z 100 to Bloemfontain leaves the gate
20 h 35 apart on the timetable, overnight
5Z 100 leaves 20 h 35 after 4Z 754 arrives on the timetable: more than half a day, so not a connection we count.