EW 754 then FR 182 at Vienna
Cologne → Vienna → Sofia
Timetable, Vienna time
14:55EW 754 from Cologne at the gate
11:40FR 182 to Sofia leaves the gate
20 h 45 apart on the timetable, overnight
FR 182 leaves 20 h 45 after EW 754 arrives on the timetable: more than half a day, so not a connection we count.