W4 6803 then U2 1684 at Fiumicino
Torino → Rome → Nice
Timetable, Rome time
19:15W4 6803 from Torino at the gate
14:45U2 1684 to Nice leaves the gate
19 h 30 apart on the timetable, overnight
U2 1684 leaves 19 h 30 after W4 6803 arrives on the timetable: more than half a day, so not a connection we count.