FR 1949 then FR 340 at Dublin
Luxembourg → Dublin → London Luton
Timetable, Dublin time
16:45FR 1949 from Luxembourg at the gate
15:00FR 340 to London Luton leaves the gate
22 h 15 apart on the timetable, overnight
FR 340 leaves 22 h 15 after FR 1949 arrives on the timetable: more than half a day, so not a connection we count.