QR 3752 then FR 6927 at Barcelona
Nice → Barcelona → Rome
Timetable, Barcelona time
10:15QR 3752 from Nice at the gatealso IB 5475, LA 5805, VY 8135
09:05FR 6927 to Rome leaves the gate
22 h 50 apart on the timetable, overnight
FR 6927 leaves 22 h 50 after QR 3752 arrives on the timetable: more than half a day, so not a connection we count.