SK 1842 then SK 121 at Arlanda
Rome → Stockholm → Malmo
Timetable, Stockholm time
23:55SK 1842 from Rome at the gate
19:55SK 121 to Malmo leaves the gate
20 h apart on the timetable, overnight
SK 121 leaves 20 h after SK 1842 arrives on the timetable: more than half a day, so not a connection we count.