FR 9857 then AY 1023 at Helsinki
Vienna → Helsinki → Tallinn
Timetable, Helsinki time
18:55FR 9857 from Vienna at the gate
15:35AY 1023 to Tallinn leaves the gate
20 h 40 apart on the timetable, overnight
AY 1023 leaves 20 h 40 after FR 9857 arrives on the timetable: more than half a day, so not a connection we count.