W4 6136 then W4 6167 at Fiumicino
Prague → Rome → Yerevan
Timetable, Rome time
11:20W4 6136 from Prague at the gate
06:15W4 6167 to Yerevan leaves the gate
18 h 55 apart on the timetable, overnight
W4 6167 leaves 18 h 55 after W4 6136 arrives on the timetable: more than half a day, so not a connection we count.