Flight Guangzhou Baiyun International Airport departs from Guangzhou Guangzhou Baiyun International Airport at 08:05 and arrives at Sydney Sydney Airport at 19:40.
The flighttime is about 9h 35m. The distance travelled ("as the bird flies"): 5666 Km. So the average speed is roughly 591 Km.
There is an 2 hour time difference between Guangzhou and Sydney