FR 815 then FR 337 at Dublin
Edinburgh → Dublin → London Luton
Timetable, Dublin time
07:05FR 815 from Edinburgh at the gate
21:25FR 337 to London Luton leaves the gate
14 h 20 apart on the timetable
FR 337 leaves 14 h 20 after FR 815 arrives on the timetable: more than half a day, so not a connection we count.