FR 6874 then FR 457 at Dublin
Barcelona → Dublin → Leeds
Timetable, Dublin time
21:40FR 6874 from Barcelona at the gate
21:00FR 457 to Leeds leaves the gate
23 h 20 apart on the timetable, overnight
FR 457 leaves 23 h 20 after FR 6874 arrives on the timetable: more than half a day, so not a connection we count.