FR 3977 then QS 1059 at Barcelona
Dublin → Barcelona → Prague
Timetable, Barcelona time
21:10FR 3977 from Dublin at the gate
14:55QS 1059 to Prague leaves the gatealso EW 3043
17 h 45 apart on the timetable, overnight
QS 1059 leaves 17 h 45 after FR 3977 arrives on the timetable: more than half a day, so not a connection we count.