FR 3801 then EC 7205 at Barcelona
Birmingham (UK) → Barcelona → Southampton
Timetable, Barcelona time
20:50FR 3801 from Birmingham (UK) at the gate
13:05EC 7205 to Southampton leaves the gate
16 h 15 apart on the timetable, overnight
EC 7205 leaves 16 h 15 after FR 3801 arrives on the timetable: more than half a day, so not a connection we count.