If you want to make sure your Windows based operating systems know the right time as we shift clocks in early November then you want to make sure you install this update titled October 2012 cumulative time zone update for Windows operating systems.

There are a couple of critical caveats about the update concerning Microsoft Outlook and Exchange so make sure you check out those related knowledge base articles.

  • Before you apply the update that is described in this article, be aware of potential issues that may affect Microsoft Outlook. For more information about these issues, view the article in the Microsoft Knowledge Base:

    931667 ( )

    How to address time zone changes by using the Time Zone Data Update Tool for Microsoft Office Outlook

  • If you are running Microsoft Exchange Server in an Information Technology (IT) environment, you must take additional measures to guarantee the correct operation of Exchange Server. For more information about the Exchange daylight saving time (DST) update, view the article in the Microsoft Knowledge Base:

    941018 ( )

    How to address daylight saving time by using the Exchange Calendar Update Tool

The knowledge base article lists all of the various versions of Windows client and server software with download links for each. Make sure you grab the right one or use Windows Update to grab it.