SK 78 then DY 4571 at Arlanda
Visby → Stockholm → Prague
Timetable, Stockholm time
08:35SK 78 from Visby at the gate
07:30DY 4571 to Prague leaves the gate
22 h 55 apart on the timetable, overnight
DY 4571 leaves 22 h 55 after SK 78 arrives on the timetable: more than half a day, so not a connection we count.