IB 5353 then FR 7543 at Barcelona
Milan → Barcelona → Manchester
Timetable, Barcelona time
11:55IB 5353 from Milan at the gate
11:35FR 7543 to Manchester leaves the gate
23 h 40 apart on the timetable, overnight
FR 7543 leaves 23 h 40 after IB 5353 arrives on the timetable: more than half a day, so not a connection we count.