On 16 May, Western Australians rejected by referendum a proposal to extend their trial of daylight savings. As a result there will be no daylight savings in WA this year or for the foreseeable future.

This change will affect Microsoft operating systems which are currently programmed to adjust their clocks on 25 October 2009. The guidance on this site is designed for home-use computers in Western Australia and small businesses in Western Australia.

If you have an IT environment that has servers and multiple machines, or a business environment that runs across other states click here for detailed information on updating these more complex environments. Alternatively, you may wish to engage a suitably qualified IT professional to carry out the required updates.

Click here to select your Operating System.