FR 4584 then IB 5246 at Barcelona
Porto → Barcelona → Ibiza
Timetable, Barcelona time
18:55FR 4584 from Porto at the gate
11:05IB 5246 to Ibiza leaves the gate
16 h 10 apart on the timetable, overnight
IB 5246 leaves 16 h 10 after FR 4584 arrives on the timetable: more than half a day, so not a connection we count.