EI 564 then FR 4545 at Barcelona
Dublin → Barcelona → Porto
Timetable, Barcelona time
20:30EI 564 from Dublin at the gate
17:15FR 4545 to Porto leaves the gate
20 h 45 apart on the timetable, overnight
FR 4545 leaves 20 h 45 after EI 564 arrives on the timetable: more than half a day, so not a connection we count.