QR 3630 then FR 777 at Barcelona
Firenze → Barcelona → Venezia
Timetable, Barcelona time
14:55QR 3630 from Firenze at the gatealso IB 5375, LL 5375, VY 6075
13:50FR 777 to Venezia leaves the gate
22 h 55 apart on the timetable, overnight
FR 777 leaves 22 h 55 after QR 3630 arrives on the timetable: more than half a day, so not a connection we count.