EI 564 then IB 5940 at Barcelona
Dublin → Barcelona → Nice
Timetable, Barcelona time
20:25EI 564 from Dublin at the gate
19:50IB 5940 to Nice leaves the gatealso LL 5940, VY 8136
23 h 25 apart on the timetable, overnight
IB 5940 leaves 23 h 25 after EI 564 arrives on the timetable: more than half a day, so not a connection we count.