FR 7350 then LA 5765 at Barcelona
Vienna → Barcelona → Firenze
Timetable, Barcelona time
19:35FR 7350 from Vienna at the gate
16:45LA 5765 to Firenze leaves the gate
21 h 10 apart on the timetable, overnight
LA 5765 leaves 21 h 10 after FR 7350 arrives on the timetable: more than half a day, so not a connection we count.