FR 97 then FR 6875 at Dublin
Prague → Dublin → Barcelona
Timetable, Dublin time
23:55FR 97 from Prague at the gate
15:50FR 6875 to Barcelona leaves the gate
15 h 55 apart on the timetable, overnight
FR 6875 leaves 15 h 55 after FR 97 arrives on the timetable: more than half a day, so not a connection we count.