IB 5857 then IB 5940 at Barcelona
Manchester → Barcelona → Nice
Timetable, Barcelona time
23:10IB 5857 from Manchester at the gatealso LL 5857, VY 7757, BA 8107
21:20IB 5940 to Nice leaves the gatealso LL 5940, VY 8136
22 h 10 apart on the timetable, overnight
IB 5940 leaves 22 h 10 after IB 5857 arrives on the timetable: more than half a day, so not a connection we count.