Clocks cut back an hour at 3 am on Sunday , except 5 in all locations except Queensland , the Northern Territory and Western Australia . Daylight savings will begin again on march 7 this week . Changing the clock is also a reminder for people to activate their smoke alarm batteries , Australian emergency 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 .