FR 4584 then FR 2330 at Barcelona
Porto → Barcelona → Nador
Timetable, Barcelona time
19:05FR 4584 from Porto at the gate
11:15FR 2330 to Nador leaves the gate
16 h 10 apart on the timetable, overnight
FR 2330 leaves 16 h 10 after FR 4584 arrives on the timetable: more than half a day, so not a connection we count.