FR 2508 then FR 6927 at Barcelona
Cologne → Barcelona → Rome
Timetable, Barcelona time
11:05FR 2508 from Cologne at the gate
09:05FR 6927 to Rome leaves the gate
22 h apart on the timetable, overnight
FR 6927 leaves 22 h after FR 2508 arrives on the timetable: more than half a day, so not a connection we count.