OS 970 then OS 1159 at Vienna
Stockholm → Vienna → Tirana
Timetable, Vienna time
09:00OS 970 from Stockholm at the gate
05:45OS 1159 to Tirana leaves the gate
20 h 45 apart on the timetable, overnight
OS 1159 leaves 20 h 45 after OS 970 arrives on the timetable: more than half a day, so not a connection we count.