EW 7752 then FR 9480 at Vienna
Hamburg → Vienna → Cologne
Timetable, Vienna time
14:30EW 7752 from Hamburg at the gate
14:00FR 9480 to Cologne leaves the gate
23 h 30 apart on the timetable, overnight
FR 9480 leaves 23 h 30 after EW 7752 arrives on the timetable: more than half a day, so not a connection we count.