LL 5475 then QR 3637 at Barcelona
Nice → Barcelona → Marseille
Timetable, Barcelona time
10:15LL 5475 from Nice at the gate
07:50QR 3637 to Marseille leaves the gate
21 h 35 apart on the timetable, overnight
QR 3637 leaves 21 h 35 after LL 5475 arrives on the timetable: more than half a day, so not a connection we count.