FR 9840 then FR 852 at Lisbon
Cologne → Lisbon → Treviso
Timetable, Lisbon time
23:30FR 9840 from Cologne at the gate
18:00FR 852 to Treviso leaves the gate
18 h 30 apart on the timetable, overnight
FR 852 leaves 18 h 30 after FR 9840 arrives on the timetable: more than half a day, so not a connection we count.