Source: National Australia Bank. Daylight Saving time will end (ie. clocks move back one hour), this Sunday, 25th March 2007, at 2 am, in the following Australian states: Victoria, Tasmania, New South Wales, ACT, Western Australia & South Australia. Note that Queensland and the Northern Territory do not observe daylight saving.
Analysis: Note that this is the first time, since 1992, that Western Australia has implemented daylight saving, and that, it was implemented extremely late (December 3, 2006) and with very barely 2 weeks advance notice (link). The trial of daylight saving will span three summers and will be followed by a referendum. This means that while the end of daylight saving will the the same for WA as for the other states that follow daylight saving, we can expect it to begin out of step with other Australian states, and extremely late (first Sunday of December), for the next 2 years.