Daylight saving time in Oceania

Parts of Australia, New Zealand, Fiji, Samoa and Tonga are areas of Oceania that currently observe daylight saving time (DST).

Currently, New South Wales, Victoria, Tasmania, Australian Capital Territory, Jervis Bay Territory and South Australia apply DST each year, from the first Sunday in October to the first Sunday in April. The Northern Territory, Queensland, Western Australia and the external territories do not observe DST.

Daylight saving was first used in Australia during World War I, and was applied in all states. It was used again during the Second World War. A drought in Tasmania in 1967 led to the reintroduction during the summer, and this was repeated every summer since. In 1971, New South Wales, Victoria, Queensland, South Australia, and the Australian Capital Territory followed Tasmania in observing daylight saving, Western Australia and the Northern Territory did not. Queensland abandoned daylight saving time in 1972. Originally Tasmania alone commenced daylight saving on the first Sunday in October, while the other states began on the last Sunday in October and finished on the last Sunday in March, until 2008 excepting in 2000 when all the states observing DST moved forward the commencement date to Sunday, 27 August 2000 because of the Sydney Olympic Games which commenced in mid-September. From 2008/09 daylight saving has been extended another four weeks in NSW, Victoria, SA and the ACT, in addition to Tasmania, from the first Sunday in October to the first Sunday in April.

Queensland again trialled daylight saving, for three years between 1989 and 1992, with a referendum on daylight saving held on 22 February 1992, which was defeated with a 54.5% ‘no’ vote - with regional and rural areas strongly opposed, while those in the metropolitan South East Queensland were in favour.

...
Wikipedia