Flight Kuala Lumpur International Airport departs from Kuala Lumpur Kuala Lumpur International Airport at 23:20 and arrives at Sydney Sydney Airport at 10:45.
The flighttime is about 9h 25m. The distance travelled ("as the bird flies"): 5790 Km. So the average speed is roughly 615 Km.
There is an 2 hour time difference between Kuala Lumpur and Sydney