FR 9857 then AY 1027 at Helsinki
Vienna → Helsinki → Tallinn
Timetable, Helsinki time
20:15FR 9857 from Vienna at the gate
20:10AY 1027 to Tallinn leaves the gate
23 h 55 apart on the timetable, overnight
AY 1027 leaves 23 h 55 after FR 9857 arrives on the timetable: more than half a day, so not a connection we count.