VN 316 then SL 395 at Narita
Da Nang → Tokyo → Bangkok Don Mueang
Timetable, Tokyo time
06:10VN 316 from Da Nang at the gate
18:15SL 395 to Bangkok Don Mueang leaves the gate
12 h 05 apart on the timetable
SL 395 leaves 12 h 05 after VN 316 arrives on the timetable: more than half a day, so not a connection we count.