FR 80 then DY 941 at Copenhagen
Budapest → Copenhagen → Oslo
Timetable, Copenhagen time
19:40FR 80 from Budapest at the gate
15:40DY 941 to Oslo leaves the gate
20 h apart on the timetable, overnight
DY 941 leaves 20 h after FR 80 arrives on the timetable: more than half a day, so not a connection we count.