VN 19 then U2 4525 at Charles de Gaulle
Hanoi → Paris → Nice
Timetable, Paris time
06:30VN 19 from Hanoi at the gate
19:30U2 4525 to Nice leaves the gate
13 h apart on the timetable
U2 4525 leaves 13 h after VN 19 arrives on the timetable: more than half a day, so not a connection we count.