FR 3161 then FR 4545 at Barcelona
Bristol → Barcelona → Porto
Timetable, Barcelona time
10:25FR 3161 from Bristol at the gate
09:20FR 4545 to Porto leaves the gate
22 h 55 apart on the timetable, overnight
FR 4545 leaves 22 h 55 after FR 3161 arrives on the timetable: more than half a day, so not a connection we count.