FR 338 then FR 1956 at Dublin
London Luton → Dublin → Manchester
Timetable, Dublin time
18:20FR 338 from London Luton at the gate
07:25FR 1956 to Manchester leaves the gate
13 h 05 apart on the timetable, overnight
FR 1956 leaves 13 h 05 after FR 338 arrives on the timetable: more than half a day, so not a connection we count.