FR 338 then FR 808 at Dublin
London Luton → Dublin → Edinburgh
Timetable, Dublin time
20:55FR 338 from London Luton at the gate
20:45FR 808 to Edinburgh leaves the gate
23 h 50 apart on the timetable, overnight
FR 808 leaves 23 h 50 after FR 338 arrives on the timetable: more than half a day, so not a connection we count.