SK 2047 then SK 722 at Arlanda
Sundsvall → Stockholm → Helsinki
Timetable, Stockholm time
07:15SK 2047 from Sundsvall at the gate
19:30SK 722 to Helsinki leaves the gate
12 h 15 apart on the timetable
SK 722 leaves 12 h 15 after SK 2047 arrives on the timetable: more than half a day, so not a connection we count.