SQ 478 then FA 590 at Johannesburg
Singapore → Johannesburg → Durban
Timetable, Johannesburg time
06:10SQ 478 from Singapore at the gate
06:05FA 590 to Durban leaves the gate
23 h 55 apart on the timetable, overnight
FA 590 leaves 23 h 55 after SQ 478 arrives on the timetable: more than half a day, so not a connection we count.