FR 23 then FR 634 at Dublin
Beauvais → Dublin → Cardiff
Timetable, Dublin time
16:00FR 23 from Beauvais at the gate
06:50FR 634 to Cardiff leaves the gate
14 h 50 apart on the timetable, overnight
FR 634 leaves 14 h 50 after FR 23 arrives on the timetable: more than half a day, so not a connection we count.