DY 3659 then ET 725 at Copenhagen
Barcelona → Copenhagen → Vienna
Timetable, Copenhagen time
23:45DY 3659 from Barcelona at the gate
19:50ET 725 to Vienna leaves the gate
20 h 05 apart on the timetable, overnight
ET 725 leaves 20 h 05 after DY 3659 arrives on the timetable: more than half a day, so not a connection we count.