FR 2234 then FR 4597 at Barcelona
Nador → Barcelona → Porto
Timetable, Barcelona time
22:30FR 2234 from Nador at the gate
20:40FR 4597 to Porto leaves the gate
22 h 10 apart on the timetable, overnight
FR 4597 leaves 22 h 10 after FR 2234 arrives on the timetable: more than half a day, so not a connection we count.