People across much of eastern Australia will get a little extra sleep as the clocks are turned back this weekend, ending six months of daylight saving.
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Those in NSW, including Lord Howe Island, Victoria, Tasmania and the ACT will see clocks return to the same time zone as Queensland.
Clocks go back at 3am on Sunday, April 5.
At that time the timekeepers will turn back the clock by an hour, so it would be 2am.
On Sunday, the sunrise will be an hour earlier than the day before, ensuring there will be more daylight in the morning.
Daylight saving begins on October 4.
Tasmania was the first state to used daylight saving back in 1916 during World War I, while it was applied to the remaining states and territories the following year.
It was removed in the whole country in 1918.
Seasonal change was reintroduced during World War II, when it was used from 1942-44.
DST was not observed in any Australian state or territory until October 1, 1967 when Tasmania reintroduced it during a drought.
The State has continued to change its clocks ever since.
In 1971, the ACT, NSW, South Australia, Victoria and Queensland followed.
However, Queensland, DST already in 1972, except for a trial period from 1989-1992, while WA had a trial from 2006-2009.
The Northern Territory has not used DST since 1944.