Microsoft Releases Updates for Windows to Conform to Australian Changes to DST 2006
Posted on 5-Dec-2005 12:04
Filed under: News
Several Australian states including New South Wales, Victoria, Australian Capital Territory, South Australia and Tasmania, have changed the Daylight Savings transition end dates for 2006, and Windows PCs need to be updated to reflect this.
Visitors to the Commonwealth Games scheduled to be held during March 2006 may be affected, if they rely on their Windows PCs for email, scheduling and other activities.
The Daylight Savings Transition date was changed from the last Sunday in March forward one week to the first Sunday of April 2006. This will affect the transition setting for one timezone rule, i.e. GMT + 10:00 for Canberra, Melbourne, Sydney; GMT +10:00 for Hobart; GMT +10:00 for Brisbane; and GMT +9.30 for Adelaide.
Normal Daylight saving dates are 30 October 2005 to 26 March 2006, but for the Year 2006 only, the official Australian Daylight Savings dates of the affected states of Australia are extended through 2 April 2006.
Clocks are advanced at 2am by 1 hour on start day to become Summer Time, and wound back at 3am by 1 hour at end day to become Standard Time.
This change is planned for year 2006 only.
Current supported versions of products shipped by Microsoft have the transition date set incorrectly for the proposed Daylight Saving transition in March 2006. Systems that use the existing time zone information in the affected states of Australia will not correctly interpret time related to the new transition to Daylight Savings time on 26th March 2006. This will cause the time to be offset by one hour from the correct time.
According to Microsoft, an incorrect transition date is expected to have a large impact on customers during a time of international focus on Australia during the Commonwealth Games.
A fix has been created for the following Microsoft Windows OS: Windows ME, Windows 2000, Windows 2003, Windows XP, Exchange 2000/2003.
This solution consists of a utility that will add a new timezone rule into the registry. The naming conventions used to ensure it is clearly identifiable as being for the year 2006 Commonwealth Games only. Names for the added timezone are:
(GMT + 10:00) Canberra, Melbourne, Sydney (Year 2006 Commonwealth Games only)
(GMT +10:00) Hobart (Year 2006 Commonwealth Games only)
(GMT +9.30) Adelaide (Year 2006 Commonwealth Games only.