FR 4689 then SK 91 at Arlanda
Alicante → Stockholm → Visby
Timetable, Stockholm time
23:40FR 4689 from Alicante at the gate
18:10SK 91 to Visby leaves the gate
18 h 30 apart on the timetable, overnight
SK 91 leaves 18 h 30 after FR 4689 arrives on the timetable: more than half a day, so not a connection we count.