Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 00:25 and arrives at Addis Ababa Bole International Airport at 05:45.
The flighttime is about 10h 20m. The distance travelled ("as the bird flies"): 8296 Km. So the average speed is roughly 803 Km.
There is an 5 hour time difference between Hong Kong and Addis Ababa