FR 21 then FR 1740 at Dublin
Newcastle → Dublin → Valencia
Timetable, Dublin time
23:10FR 21 from Newcastle at the gate
20:50FR 1740 to Valencia leaves the gate
21 h 40 apart on the timetable, overnight
FR 1740 leaves 21 h 40 after FR 21 arrives on the timetable: more than half a day, so not a connection we count.