FR 6817 then FR 4370 at Manchester
Milan → Manchester → Seville
Timetable, Manchester time
11:30FR 6817 from Milan at the gate
10:30FR 4370 to Seville leaves the gate
23 h apart on the timetable, overnight
FR 4370 leaves 23 h after FR 6817 arrives on the timetable: more than half a day, so not a connection we count.