… is not happening.
Therefore, a hotfix has been released to deal with this issue. This is an out of band update, and should be applied to all systems used by WA users.
The Daylight Savings Planning Guide (September 2009) can be found here – http://technet.microsoft.com/en-au/bb821275.aspx
The hotfix (KB974176) can be obtained here – http://support.microsoft.com/kb/974176