DY 999 then DY 378 at Oslo
Billund → Oslo → Tromso
Timetable, Oslo time
16:35DY 999 from Billund at the gate
15:05DY 378 to Tromso leaves the gate
22 h 30 apart on the timetable, overnight
DY 378 leaves 22 h 30 after DY 999 arrives on the timetable: more than half a day, so not a connection we count.