U2 2323 then FR 2233 at Barcelona
London Luton → Barcelona → Nador
Timetable, Barcelona time
20:10U2 2323 from London Luton at the gate
13:10FR 2233 to Nador leaves the gate
17 h apart on the timetable, overnight
FR 2233 leaves 17 h after U2 2323 arrives on the timetable: more than half a day, so not a connection we count.