OS 650 then OS 1159 at Vienna
Prague → Vienna → Tirana
Timetable, Vienna time
08:20OS 650 from Prague at the gate
05:45OS 1159 to Tirana leaves the gate
21 h 25 apart on the timetable, overnight
OS 1159 leaves 21 h 25 after OS 650 arrives on the timetable: more than half a day, so not a connection we count.