FR 4785 then FR 1976 at Dublin
Newquay → Dublin → Riga
Timetable, Dublin time
14:35FR 4785 from Newquay at the gate
10:35FR 1976 to Riga leaves the gate
20 h apart on the timetable, overnight
FR 1976 leaves 20 h after FR 4785 arrives on the timetable: more than half a day, so not a connection we count.