QR 3741 then V7 1445 at Barcelona
Marseille → Barcelona → Olbia
Timetable, Barcelona time
15:30QR 3741 from Marseille at the gate
12:40V7 1445 to Olbia leaves the gate
21 h 10 apart on the timetable, overnight
V7 1445 leaves 21 h 10 after QR 3741 arrives on the timetable: more than half a day, so not a connection we count.