The Western Australian Government has passed a law enabling a three year trial of daylight savings commencing 3rd December 2006. This will mean that from 3rd December until sometime in March Australia/Perth will be +0900 instead of +0800. News Article as confirmation: http://www.abc.net.au/news/newsitems/200611/s1794214.htm
You'll need to wait until new timezone-data version is available...