FR 3801 then FR 58 at Barcelona
Birmingham (UK) → Barcelona → Napoli
Timetable, Barcelona time
15:35FR 3801 from Birmingham (UK) at the gate
13:25FR 58 to Napoli leaves the gate
21 h 50 apart on the timetable, overnight
FR 58 leaves 21 h 50 after FR 3801 arrives on the timetable: more than half a day, so not a connection we count.