4Z 173 then 5Z 100 at Johannesburg
Gaborone → Johannesburg → Bloemfontain
Timetable, Johannesburg time
08:454Z 173 from Gaborone at the gate
08:405Z 100 to Bloemfontain leaves the gate
23 h 55 apart on the timetable, overnight
5Z 100 leaves 23 h 55 after 4Z 173 arrives on the timetable: more than half a day, so not a connection we count.