W6 2343 then W4 3146 at Fiumicino
Budapest → Rome → Bucharest
Timetable, Rome time
20:50W6 2343 from Budapest at the gate
20:40W4 3146 to Bucharest leaves the gate
23 h 50 apart on the timetable, overnight
W4 3146 leaves 23 h 50 after W6 2343 arrives on the timetable: more than half a day, so not a connection we count.