Flight Guangzhou Baiyun International Airport departs from Guangzhou Guangzhou Baiyun International Airport at 00:15 and arrives at Dubai International Airport at 04:25.
The flighttime is about 8h 10m. The distance travelled ("as the bird flies"): 6441 Km. So the average speed is roughly 789 Km.
There is an 4 hour time difference between Guangzhou and Dubai