Clocks in NSW officially will jump an hour at 2am on Sunday.

"With spring in the air, the start of daylight saving marks the finest hour for many people," Attorney General Mark Speakman said this week.

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"However, with Public Health Orders still in place, I encourage people in NSW to enjoy the lighter evenings responsibly to keep the community safe."

Daylight saving starts on the first Sunday in October and finishes on the first Sunday in April.

"The shortened night usually occurs during the October long weekend, meaning those who have the benefit of the public holiday have an extra day to make up for that lost hour's sleep," Mr Speakman said.

The NSW government advises that most electronic devices automatically update to daylight saving time, but anyone with a manual clock or watch should wind it forward by one hour before going to bed on Saturday night.

Victoria, South Australia, Tasmania and the Australian Capital Territory will also be resetting their clocks on Sunday.

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

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