FR 7379 then FR 340 at Dublin
Marrakesh → Dublin → London Luton
Timetable, Dublin time
20:35FR 7379 from Marrakesh at the gate
15:00FR 340 to London Luton leaves the gate
18 h 25 apart on the timetable, overnight
FR 340 leaves 18 h 25 after FR 7379 arrives on the timetable: more than half a day, so not a connection we count.