FR 1280 then FR 4545 at Barcelona
Copenhagen → Barcelona → Porto
Timetable, Barcelona time
20:35FR 1280 from Copenhagen at the gate
19:15FR 4545 to Porto leaves the gate
22 h 40 apart on the timetable, overnight
FR 4545 leaves 22 h 40 after FR 1280 arrives on the timetable: more than half a day, so not a connection we count.