FR 9481 then OS 139 at Vienna
Cologne → Vienna → Zurich
Timetable, Vienna time
19:50FR 9481 from Cologne at the gate
12:55OS 139 to Zurich leaves the gate
17 h 05 apart on the timetable, overnight
OS 139 leaves 17 h 05 after FR 9481 arrives on the timetable: more than half a day, so not a connection we count.