Clocks go back an hour at 3am on Sunday , April 5 in all states except Melbourne CBD , the Northern Territory and Western Australia . Daylight savings will begin again on October 4 this year . Changing the clock is also a reminder for people to change their smoke alarm batteries , Australian fire services say .
Clocks go back an hour at 3am on Sunday , April 5 in all states except Queensland , the Northern Territory and Western Australia . Daylight savings will begin again on October 4 this year . Changing the clock is also a reminder for people to change their smoke alarm batteries , Australian fire services say .