DST changes in Windows for Magallanes (Chile)

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Summary

This article describes an update that makes time zone changes and daylight saving time (DST) changes in Windows. Before you install this update, see the Prerequisites section.

This update applies to the following operating systems:

Windows Server 2012 R2
Windows 8.1
Windows RT 8.1
Windows Server 2012
Windows Embedded 8
Windows Server 2008 R2 Service Pack 1 (SP1)
Windows 7 SP1
Windows Server 2008 Service Pack 2 (SP2)
Windows Vista SP2
Windows XP Embedded

Note To get the update for Windows 10, install the latest cumulative updates that are listed in the Windows 10 update history page.

Chile

Chile has announced that the Magallanes region and the Chilean Antarctic region will remain on daylight saving time (DST) indefinitely.

On May 14, 2017, mainland Chile will revert to the UTC -04:00 time zone while the Magallanes region and the Chilean Antarctic region will move to UTC -03:00. We recommend that users in the Magallanes and Chilean Antarctic regions switch to this new time zone

Region	Old time zone	New time zone
Magallanes Chilean Antarctica	(UTC-04:00) Santiago	(UTC-03:00) Punta Arenas

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Resolution

The update that is described in this article moves the Chilean Magallanes and Antarctic regions to the Punta Arenas Time Zone.

For more information about how DST changes may affect other Microsoft products, go to the following Microsoft website:

General information about DST

For more information about how DST changes may affect other Microsoft products, click the following article number to go to the article in the Microsoft Knowledge Base:

914387 How to configure daylight saving time for Microsoft Windows operating systems

Note When you apply this update, you may receive a message that resembles the following:

Update cannot be installed as a newer or same time zone update has already been installed on the system.

This message indicates that either you have already applied the correct update or Windows Updates or Microsoft Update has automatically installed this update. No additional action is required to update the Windows operating system.

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How to get this update

Windows Server 2012 R2, Windows 8.1, Windows Server 2012, Windows Server 2008 R2 SP1, Windows 7 SP1

Method 1: Windows Update

This update is provided as part of an Optional update rollup on Windows Update. To learn more about the update rollups that have been released for these operating systems, see the following Microsoft Knowledge Base articles:

Windows 8.1 and Windows Server 2012 R2 update history
Windows 7 SP1 and Windows Server 2008 R2 SP1 update history
Windows Server 2012 update history

For more information about how to run Windows Update, see How to get an update through Windows Update.

Method 2: Windows Server Update Service

This update is now available for installation through WSUS.

Method 3: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Note You must be running Microsoft Internet Explorer 6.0 or a later version.

Windows Server 2008 SP2, Windows Vista

Method 1: Windows Update

This update is provided as an Optional update on Windows Update. For more information about how to run Windows Update, see How to get an update through Windows Update.

Method 2: Windows Server Update Service

This update is now available for installation through WSUS.

Method 3: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Note You must be running Microsoft Internet Explorer 6.0 or a later version.

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