AK 1721 then VJ 814 at Changi
Penang → Singapore → Ho Chi Minh City
Timetable, Singapore time
11:20AK 1721 from Penang at the gate
11:15VJ 814 to Ho Chi Minh City leaves the gate
23 h 55 apart on the timetable, overnight
VJ 814 leaves 23 h 55 after AK 1721 arrives on the timetable: more than half a day, so not a connection we count.