Flight Taoyuan International Airport departs from Taipei Taoyuan International Airport at 02:45 and arrives at Nagoya Chubu Centrair International Airport at 06:35.
The flighttime is about 2h 50m. The distance travelled ("as the bird flies"): 1857 Km. So the average speed is roughly 655 Km.
There is an 1 hour time difference between Taipei and Nagoya