australia.gov.au

 
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Time

Time zones

With a land mass close to 7.7 million square kilometres, Australia is the world's sixth largest country and is divided into three separate time zones.

Time zone State or territory City
Australian Eastern Standard Time (AEST) Queensland, New South Wales (except Broken Hill), Victoria, Tasmania, Australian Capital Territory Brisbane, Sydney, Melbourne, Hobart, Canberra
Australian Central Standard Time (ACST) South Australia, Northern Territory and the town of Broken Hill in western New South Wales Adelaide, Darwin, Broken Hill
Australian Western Standard Time (AWST) Western Australia Perth

AEST is equal to Coordinated Universal Time plus 10 hours (UTC +10).
ACST is equal to Coordinated Universal Time plus 9.5 hours (UTC +9.5).
AWST is equal to Coordinated Universal Time plus 8 hours (UTC +8).

Daylight saving

Daylight Saving Time (DST) is the practice of advancing clocks one hour during the warmer months of the year. In Australia, Daylight saving is observed in New South Wales, Victoria, South Australia, Tasmania, and the Australian Capital Territory.

Daylight saving is not observed in Queensland, the Northern Territory or Western Australia.

Daylight Saving Time begins at 2am on the first Sunday in October, when clocks are put forward one hour. It ends at 2am (which is 3am Daylight Saving Time) on the first Sunday in April, when clocks are put back one hour.

During Daylight Saving Time (first Sunday in October – first Sunday in April)  
Time zone State or territory City
Australian Eastern Standard Time (AEST) Queensland Brisbane
Australian Eastern Daylight Time (AEDT) New South Wales (except Broken Hill), Victoria, Tasmania, Australian Capital Territory Sydney, Melbourne, Hobart, Canberra
Australian Central Daylight Time (ACDT) South Australia and the town of Broken Hill in western New South Wales Adelaide, Broken Hill
Australian Central Standard Time (ACST) Northern Territory Darwin
Australian Western Standard Time (AWST) Western Australia Perth

Where Daylight saving is observed:
AEDT is equal to Coordinated Universal Time plus 11 hours (UTC +11).
ACDT is equal to Coordinated Universal Time plus 10.5 hours (UTC +10.5)

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