SK 1842 then SK 722 at Arlanda
Rome → Stockholm → Helsinki
Timetable, Stockholm time
23:55SK 1842 from Rome at the gate
15:30SK 722 to Helsinki leaves the gate
15 h 35 apart on the timetable, overnight
SK 722 leaves 15 h 35 after SK 1842 arrives on the timetable: more than half a day, so not a connection we count.