FR 509 then FR 1948 at Dublin
Bristol → Dublin → Luxembourg
Timetable, Dublin time
19:50FR 509 from Bristol at the gate
14:55FR 1948 to Luxembourg leaves the gate
19 h 05 apart on the timetable, overnight
FR 1948 leaves 19 h 05 after FR 509 arrives on the timetable: more than half a day, so not a connection we count.