FR 1949 then FR 668 at Dublin
Luxembourg → Dublin → Birmingham (UK)
Timetable, Dublin time
18:00FR 1949 from Luxembourg at the gate
12:20FR 668 to Birmingham (UK) leaves the gate
18 h 20 apart on the timetable, overnight
FR 668 leaves 18 h 20 after FR 1949 arrives on the timetable: more than half a day, so not a connection we count.