Time in Australia

[3] It also meant that South Australia became one of only a few places in the world which uses a time-zone meridian located outside of its geographical boundaries.

Likewise, when the ACT and Jervis Bay Territory were broken off from New South Wales, they retained Eastern Standard Time.

In November 2004, the state and territory attorneys-general endorsed a proposal from the Australian National Measurement Institute to adopt UTC as the standard of all Australian standard times, thereby eliminating the effects of slight variations in the rate of rotation of the Earth that are inherent in mean solar time.

In Victoria, South Australia, Tasmania and the ACT, the starting and ending dates of daylight saving times are officially determined by proclamations, declarations, or regulation made by the State Governor or responsible minister.

On 12 April 2007, New South Wales, Victoria, Tasmania, and the ACT agreed to common beginning and ending dates for DST from 2008.

[20] Unlike the rest of New South Wales, Broken Hill and the surrounding region (Yancowinna County) observes Australian Central Standard Time (UTC+09:30), a time zone it shares with nearby South Australia and the Northern Territory.

'I believe it started in the late '50s early '60s as a way to give the guests a bit more daylight time on the island and no-one knows for sure though.

'"[23] Lord Howe Island, part of the state of New South Wales but 600 kilometres (370 miles) east of the Australian mainland in the Pacific Ocean, uses UTC+10:30 during the winter months (30 minutes ahead of the eastern states), but advances to UTC+11:00 in summer (the same time as the rest of New South Wales).

During the Western Australian trial of DST from 2006 to 2009, this area also sets its clocks ahead one hour during summer.

In 2000, all of the eastern jurisdictions that normally observe DST—New South Wales, Victoria, the ACT, and Tasmania—began DST early because of the Summer Olympic Games held in Sydney.

Similarly, tenders for their sale of stock usually set out the time at a given location by which they must be received to be considered.

For example, it yields in setting the normal working times of Federal employees, the recognition of public holidays, etc.

Queensland has had a particularly involved debate over daylight saving time, with public opinion geographically divided.

The committee's reasons include Queensland's unsuitable geography and a lack of broad support from denizens.

[32] Later, another introduction of DST was trialled from 29 October 1989 to 4 March 1990, overseen by the daylight saving task force.

[32] The holiday islands in the Whitsundays (Hayman, Lindeman and Hamilton) continued to observe DST in defiance of the Standard Time Act (The "Australia/Lindeman" Timezone in the tz database is based on this).

Heron Island, 72 km off the coast off Gladstone, has two time zones: the resort follows DST all year round, whereas "the Marine Research Centre and the Parks and Wildlife office on the island remain on Eastern Standard Time".

Since the late 1900s, there have been a number of petitions submitted to the Legislative Assembly of Queensland, lobbying for the introduction of daylight saving time or for another referendum to be held.

This party contested the March 2009 Queensland State election with 32 candidates, and it received about one per cent of the statewide primary vote.

[38] Wellington called for a referendum to be held at the next state election on the introduction of DST into southeastern Queensland under the dual-time-zone system.

[39] The decision announced by the Premier on 7 June 2010 was that her Government would not support the bill because rural Queenslanders were overwhelmingly opposed to DST.