FR 4544 then FR 1976 at Dublin
Warsaw → Dublin → Riga
Timetable, Dublin time
20:20FR 4544 from Warsaw at the gate
13:50FR 1976 to Riga leaves the gate
17 h 30 apart on the timetable, overnight
FR 1976 leaves 17 h 30 after FR 4544 arrives on the timetable: more than half a day, so not a connection we count.