IB 5093 then FR 3976 at Barcelona
Porto → Barcelona → Dublin
Timetable, Barcelona time
17:20IB 5093 from Porto at the gate
17:15FR 3976 to Dublin leaves the gate
23 h 55 apart on the timetable, overnight
FR 3976 leaves 23 h 55 after IB 5093 arrives on the timetable: more than half a day, so not a connection we count.