Paraguay has announced changes to its Daylight Saving Time (DST) schedule. This hotfix updates the DST start and end dates for the “(UTC-04:00) Asuncion” time zone.


Fiji has announced changes to its DST schedule. This hotfix updates the DST start and end dates for the “(UTC+12:00) Fiji” time zone.

Chile has announced an extension to its DST end date for 2010. This hotfix updates the DST end date for the “(UTC-04:00) Santiago” time zone.

More specifically, this hotfix sets DST as follows:

  • Sets DST start date for Paraguay at first Saturday of October at 23:59:59.999 and DST end date at second Saturday of April at 23:59:59.999
  • Sets DST start date for Fiji at fourth Sunday of October 2010 at 02:00:00.000 and DST end date at last Sunday of March 2010 at 03:00:00.000
  • Sets DST end date for Chile at first Saturday of April, 2010 at 23:59:59.999

Time zone key name

Display name

DST start

DST end

Paraguay Standard Time

(UTC-04:00) Asuncion

1st Saturday of October at 23:59:59.999

2nd Saturday of April at 23:59:59.999

Fiji Standard Time

(UTC+12:00) Fiji

4th Sunday of October 2010 at 02:00:00.000

Last Sunday of March 2010 at 03:00:00.000

Pacific SA Standard Time

(UTC-04:00) Santiago

2nd Saturday of October at 23:59:59.999

1st Saturday of April, 2010 at 23:59:59.999

You can request the upgrade by visiting KB 981128 or directly here, once you are in the hotfix request site make sure to select the option "Show hotfixes for all platforms and languages" to view the complete list of languages and operating systems.

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Note: Windows 2008 and Windows Vista update packages are built from the same servicing branch and are shown under the Vista Product name on the download page. The Vista titled package does install and update on Windows 2008.

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For more information see Microsoft Knowledge Base: 981128 A hotfix is available to update the Daylight Saving Time for the "(UTC-04:00) Asuncion", “(UTC+12:00) Fiji” and “(UTC-04:00) Santiago” time zone for Windows Operating Systems