Flight Taoyuan International Airport departs from Taipei Taoyuan International Airport at 21:40 and arrives at Istanbul Istanbul Atatürk Airport at 05:20.
The flighttime is about 12h 40m. The distance travelled ("as the bird flies"): 10166 Km. So the average speed is roughly 803 Km.
There is an 5 hour time difference between Taipei and Istanbul