EC 1703 then IB 413 at Madrid
Nice → Madrid → Barcelona
Timetable, Madrid time
20:40EC 1703 from Nice at the gate
13:00IB 413 to Barcelona leaves the gatealso CX 1841, LL 3013, VY 5050, LA 5401, AV 6146, QR 6939, BA 7133, AA 8688
16 h 20 apart on the timetable, overnight
IB 413 leaves 16 h 20 after EC 1703 arrives on the timetable: more than half a day, so not a connection we count.