QR 3615 then QR 4704 at Barcelona
Catania → Barcelona → Marrakesh
Timetable, Barcelona time
22:35QR 3615 from Catania at the gatealso IB 5803, LL 5803, VY 6119
18:45QR 4704 to Marrakesh leaves the gatealso IB 5960
20 h 10 apart on the timetable, overnight
QR 4704 leaves 20 h 10 after QR 3615 arrives on the timetable: more than half a day, so not a connection we count.