FR 3994 then FR 337 at Dublin
Agadir → Dublin → London Luton
Timetable, Dublin time
18:15FR 3994 from Agadir at the gate
16:45FR 337 to London Luton leaves the gate
22 h 30 apart on the timetable, overnight
FR 337 leaves 22 h 30 after FR 3994 arrives on the timetable: more than half a day, so not a connection we count.