SQ 727 then VJ 814 at Changi
Phuket → Singapore → Ho Chi Minh City
Timetable, Singapore time
14:05SQ 727 from Phuket at the gate
11:15VJ 814 to Ho Chi Minh City leaves the gate
21 h 10 apart on the timetable, overnight
VJ 814 leaves 21 h 10 after SQ 727 arrives on the timetable: more than half a day, so not a connection we count.