3W 20 then 5Z 100 at Johannesburg
Blantyre → Johannesburg → Bloemfontain
Timetable, Johannesburg time
11:303W 20 from Blantyre at the gate
06:255Z 100 to Bloemfontain leaves the gate
18 h 55 apart on the timetable, overnight
5Z 100 leaves 18 h 55 after 3W 20 arrives on the timetable: more than half a day, so not a connection we count.