QR 3615 then IB 424 at Barcelona
Catania → Barcelona → Madrid
Timetable, Barcelona time
22:35QR 3615 from Catania at the gatealso IB 5803, LL 5803, VY 6119
21:15IB 424 to Madrid leaves the gatealso IB 424S, LA 1589, LL 3024, VY 5100, AY 5576, AV 6173, BA 7084, QR 8067
22 h 40 apart on the timetable, overnight
IB 424 leaves 22 h 40 after QR 3615 arrives on the timetable: more than half a day, so not a connection we count.