SK 1768 then SK 10 at Arlanda
Prague → Stockholm → Lulea
Timetable, Stockholm time
21:15SK 1768 from Prague at the gate
13:40SK 10 to Lulea leaves the gate
16 h 25 apart on the timetable, overnight
SK 10 leaves 16 h 25 after SK 1768 arrives on the timetable: more than half a day, so not a connection we count.