OS 136 then FR 182 at Vienna
Zurich → Vienna → Sofia
Timetable, Vienna time
14:00OS 136 from Zurich at the gate
11:40FR 182 to Sofia leaves the gate
21 h 40 apart on the timetable, overnight
FR 182 leaves 21 h 40 after OS 136 arrives on the timetable: more than half a day, so not a connection we count.