FR 1977 then H4 258 at Dublin
Riga → Dublin → Bucharest
Timetable, Dublin time
23:10FR 1977 from Riga at the gate
22:50H4 258 to Bucharest leaves the gate
23 h 40 apart on the timetable, overnight
H4 258 leaves 23 h 40 after FR 1977 arrives on the timetable: more than half a day, so not a connection we count.