DY 4012 then SK 722 at Arlanda
Umea → Stockholm → Helsinki
Timetable, Stockholm time
17:15DY 4012 from Umea at the gate
15:30SK 722 to Helsinki leaves the gate
22 h 15 apart on the timetable, overnight
SK 722 leaves 22 h 15 after DY 4012 arrives on the timetable: more than half a day, so not a connection we count.