4Z 736 then 4Z 555 at Johannesburg
Pietermaritzburg → Johannesburg → Durban
Timetable, Johannesburg time
15:104Z 736 from Pietermaritzburg at the gate
15:054Z 555 to Durban leaves the gate
23 h 55 apart on the timetable, overnight
4Z 555 leaves 23 h 55 after 4Z 736 arrives on the timetable: more than half a day, so not a connection we count.