FR 199 then FR 51 at Vienna
Vilnius → Vienna → Treviso
Timetable, Vienna time
15:20FR 199 from Vilnius at the gate
12:30FR 51 to Treviso leaves the gate
21 h 10 apart on the timetable, overnight
FR 51 leaves 21 h 10 after FR 199 arrives on the timetable: more than half a day, so not a connection we count.