MH 1397 then VN 680 at Kuala Lumpur
Kota Baharu → Kuala Lumpur → Hanoi
Timetable, Kuala Lumpur time
22:20MH 1397 from Kota Baharu at the gate
20:35VN 680 to Hanoi leaves the gate
22 h 15 apart on the timetable, overnight
VN 680 leaves 22 h 15 after MH 1397 arrives on the timetable: more than half a day, so not a connection we count.