QR 3711 then FR 878 at Barcelona
Firenze → Barcelona → Venezia
Timetable, Barcelona time
10:00QR 3711 from Firenze at the gatealso IB 5373, LL 5373, VY 6073
08:30FR 878 to Venezia leaves the gate
22 h 30 apart on the timetable, overnight
FR 878 leaves 22 h 30 after QR 3711 arrives on the timetable: more than half a day, so not a connection we count.