QR 3630 then QR 3566 at Barcelona
Firenze → Barcelona → Rome
Timetable, Barcelona time
14:55QR 3630 from Firenze at the gatealso IB 5375, LL 5375, VY 6075
10:05QR 3566 to Rome leaves the gate
19 h 10 apart on the timetable, overnight
QR 3566 leaves 19 h 10 after QR 3630 arrives on the timetable: more than half a day, so not a connection we count.