FR 5057 then FR 572 at Madrid
Dakhla → Madrid → Porto
Timetable, Madrid time
18:20FR 5057 from Dakhla at the gate
16:40FR 572 to Porto leaves the gate
22 h 20 apart on the timetable, overnight
FR 572 leaves 22 h 20 after FR 5057 arrives on the timetable: more than half a day, so not a connection we count.