Mac OS X: Adjusting Date & Time for Australian Daylight Saving Time‘s extra week in 2006

In Australian states that observe Daylight Saving Time, Summer Time extends for an extra week in 2006. This means that clocks will be set back to standard time on 02-April-2006 instead of 26-March-2006. Learn how to make sure your Mac OS X clock displays the correct time during the intervening week if you live in one of the affected states.

This document applies to all versions of Mac OS X in Australian states that observe Daylight Saving Time.

Mac OS X 10.4

Download and install the Mac OS X 10.4.5 Update or later. This contains updated Daylight Saving Time rules that maintain the proper time automatically.

Mac OS X 10.3.9 or earlier

You have two options: Select a different time zone, or set the time manually.

Select a different time zone

Note: Use this option if it is necessary to maintain the correct offset from Universal Time—for example, in an environment where Kerberos authentication is used.

1. Select a time zone in Date & Time preferences that is one hour to the east of your location—for example, by clicking on an area of northeastern Russia or the South Pacific.
2. On 02-April-2006, reverse this change by reselecting the original time zone.

Note: This option is not available for users in South Australia.

Set the time manually

1. Deselect the "Set Date & Time automatically" option in Date & Time preferences if it's enabled.
2. Manually set the correct time.
3. Click Save.
4. On 02-April-2006, reverse this change by checking "Set Date & Time automatically" or by manually setting the correct time again.