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Daylight Savings Changes in 2008

Daylight Savings Time (DST) now ends on the first Sunday of April and starts on the first Sunday of October. Microsoft has a series of updates, articles and tools to help with the new dates.

Windows XP/2003/Vista

These operating systems will be patched by Automatic Updates, so most likely you do not need to take any action. (You must have Windows XP Service Pack 2 or Windows 2003 Service Pack 1, however.)

Windows 2000

Microsoft has not published an automatic update, but we have developed a manual registry patch to make the appropriate changes:

  1. Download 2008AustTimeZones.reg and click Open or Run to merge the changes with the system.

  2. Double-click the date in the taskbar.

  3. Click the Time Zone tab.

  4. Choose a different time zone (it does not matter which), and click Apply.

    The clock will change to reflect the time zone chosen.

  5. Choose your actual time zone, and click OK.

Windows 95/98/Me/NT4

Contact us if you need help with these systems. There is no Microsoft patch.

Outlook

If, before installing the Windows DST update, you created an appointment/task etc that falls between the old and new start/end dates, Outlook will present the time incorrectly. Since Windows was updated in late 2007, this may affect you only if you make appointments months in advance. Microsoft has a tool which updates such items, but use with care.

Windows Mobile Phones and PDAs

See 2008 Daylight Saving Time Update for Windows Mobile and 2009 Daylight Saving Time Update for Windows Mobile.

Other Microsoft Applications

If you have Lotus Notes add-ins for Exchange, Sharepoint, Dynamics CRM, Biztalk Server, Commerce Server, Visual Studio and some other Microsoft products, see http://technet.microsoft.com/en-au/bb887637.aspx.

Cadzow 2000

Cadzow 2000 is sensitive to the accuracy of the PC clock in a networked environment, so if you have some systems which have changed DST properly and some not, you'll get a warning message.

Other Vendors

Although many applications simply use the date and time in the underlying operating system, some have their own time zone logic. Check their websites for information.

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