IB 5375 then QR 3503 at Barcelona
Firenze → Barcelona → Ibiza
Timetable, Barcelona time
17:55IB 5375 from Firenze at the gatealso LL 5375, VY 6075
14:55QR 3503 to Ibiza leaves the gate
21 h apart on the timetable, overnight
QR 3503 leaves 21 h after IB 5375 arrives on the timetable: more than half a day, so not a connection we count.