Flight Leonardo da Vinci–Fiumicino Airport departs from Rome Leonardo da Vinci–Fiumicino Airport at 11:30 and arrives at Taipei Taoyuan International Airport at 05:50.
The flighttime is about 12h 20m. The distance travelled ("as the bird flies"): 11974 Km. So the average speed is roughly 971 Km.
There is an 6 hour time difference between Rome and Taipei