Microsoft released set of Daylight Saving updates back in December 2009.

Time Zone changes since last MS update

  • Argentina Standard Time:
    Removes DST for 2010 and later years.
  • Central Brazilian Standard Time:
    Updates dynamic DST table.
    Changes DST end date for 2010.
  • E. South America Standard Time:
    Updates dynamic DST table; Changes DST end date for 2010.
  • Egypt Standard Time:
    Changes the DST end date for 2009.
    Changes the TZI for 2010.
  • Georgian Standard Time:
    Changes the display name and time zone bias from UTC+3 to UTC+4.
  • Greenland Standard Time:
    Changes the TZI for 2010 for operating systems earlier than Windows Vista.
  • Jerusalem Standard Time:
    Changes the TZI for 2010 for operating systems earlier than Windows Vista.
  • Morocco Standard Time:
    Changes the TZI for 2010 for operating systems earlier than Windows Vista.
  • N. Central Asia Standard Time:
    Removes “Almaty” from the “(GMT+06:00) Almaty, Novosibirsk” time zone.
  • North Asia East Standard Time:
    Removes “Ulaan Bataar” from the “(GMT+08:00) Irkutsk, Ulaan Bataar” time zone.
  • Pakistan Standard Time:
    Changes the TZI for 2010 for operating systems earlier than Windows Vista.
  • Paraguay Standard Time:
    Changes the TZI for 2010 for operating systems earlier than Windows Vista.
  • Ulaanbaatar Standard Time:
    Creates the Ulaanbaatar Standard Time time zone with the display name of “(GMT+08:00) Ulaanbaatar”.
  • W. Australia Standard Time:
    Removes DST for 2010 and later years

    • Microsoft DST updates:

    Update for Windows 7 (KB976098)

    Update for Windows 7 for x64-based Systems (KB976098)

    Update for Windows Server 2003 (KB976098)

    Update for Windows Server 2003 x64 Edition (KB976098)

    Update for Windows Server 2003 for Itanium-based Systems (KB976098)

    Update for Windows Server 2008 (KB976098)

    Update for Windows Server 2008 x64 Edition (KB976098)

    Update for Windows Server 2008 for Itanium-based Systems (KB976098)

    Update for Windows Server 2008 R2 x64 Edition (KB976098)

    Update for Windows Server 2008 R2 for Itanium-based Systems (KB976098)

    Update for Windows Vista (KB976098)

    Update for Windows Vista for x64-based Systems (KB976098)

    Update for Windows XP (KB976098)

    Update for Windows XP x64 Edition (KB976098)

     

    Blackberry DST updates:

    RIM released 2 updates for DST 2010 March

    http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB20676