FR 6817 then IB 988 at Manchester
Milan → Manchester → Madrid
Timetable, Manchester time
22:45FR 6817 from Milan at the gate
14:35IB 988 to Madrid leaves the gate
15 h 50 apart on the timetable, overnight
IB 988 leaves 15 h 50 after FR 6817 arrives on the timetable: more than half a day, so not a connection we count.