I'm preparing for the DST Changes this sunday. I am on CCM 4.0(2) and Unity 4.0(4). I read through the forums and found this post: "it is apparent that those customers running 4.0(2a) don't have a solution to this issue."
You would have to upgrade CCM to 4.1.(3) to be able to use the DST Patch you are referring to. This is why there are people so unhappy with Cisco for not working up a patch for CCM 4.0.(2) There are only patches available for the latest release in each train (3.3(5), 4.1.(3) and 4.2.(1)) :(
Given that fact,
There is also a manual workaround just in case you are running out of time;
CCM OS Manual Workaround 3.x and 4.x
On the new US DST date, Logon with sufficient privileges to CCM Windows Server (starting with Publisher)
Click Start, Settings, Control Panel, Date and Time
Adjust the time accordingly
Click on TimeZone tab
Uncheck the Automatically adjust clock for daylight savings changes
Click Apply or Ok
Repeat steps for all servers in the cluster.
When DST ends in the Fall, the clock would have to be manually adjusted again using the same method described in steps 1-3 and 6-7 above. Please note, however, that manually adjusting the clock on CCM servers could result in a conflict in time which may produce time synchronization issues.
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