Flight Leonardo da Vinci–Fiumicino Airport departs from Rome Leonardo da Vinci–Fiumicino Airport at 19:50 and arrives at Beijing Beijing Capital International Airport at 13:15.
The flighttime is about 11h 25m. The distance travelled ("as the bird flies"): 11601 Km. So the average speed is roughly 1016 Km.
There is an 6 hour time difference between Rome and Beijing