FR 9481 then OS 265 at Vienna
Cologne → Vienna → Stuttgart
Timetable, Vienna time
22:10FR 9481 from Cologne at the gate
13:20OS 265 to Stuttgart leaves the gate
15 h 10 apart on the timetable, overnight
OS 265 leaves 15 h 10 after FR 9481 arrives on the timetable: more than half a day, so not a connection we count.