FR 2508 then FR 3320 at Barcelona
Cologne → Barcelona → Milan Bergamo
Timetable, Barcelona time
21:45FR 2508 from Cologne at the gate
18:15FR 3320 to Milan Bergamo leaves the gate
20 h 30 apart on the timetable, overnight
FR 3320 leaves 20 h 30 after FR 2508 arrives on the timetable: more than half a day, so not a connection we count.