SK 148 then SK 81 at Arlanda
Göteborg → Stockholm → Visby
Timetable, Stockholm time
12:30SK 148 from Göteborg at the gate
10:20SK 81 to Visby leaves the gate
21 h 50 apart on the timetable, overnight
SK 81 leaves 21 h 50 after SK 148 arrives on the timetable: more than half a day, so not a connection we count.