FR 374 then FR 556 at Dublin
London Luton → Dublin → Manchester
Timetable, Dublin time
10:50FR 374 from London Luton at the gate
10:45FR 556 to Manchester leaves the gate
23 h 55 apart on the timetable, overnight
FR 556 leaves 23 h 55 after FR 374 arrives on the timetable: more than half a day, so not a connection we count.