SK 1768 then SK 409 at Arlanda
Prague → Stockholm → Copenhagen
Timetable, Stockholm time
21:15SK 1768 from Prague at the gate
16:00SK 409 to Copenhagen leaves the gate
18 h 45 apart on the timetable, overnight
SK 409 leaves 18 h 45 after SK 1768 arrives on the timetable: more than half a day, so not a connection we count.