Summary
This article describes an update that makes daylight saving time (DST) changes in Windows for Chile. Before you install this update, see the Prerequisites section.
This update applies to the following operating systems:
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Windows Server 2012 R2
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Windows 8.1
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Windows RT 8.1
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Windows Server 2008 R2 Service Pack 1 (SP1)
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Windows 7 SP1
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Windows Server 2008 Service Pack 2 (SP2)
Note To get the update for Windows 10 and Windows Server 2016, install the latest cumulative updates that are listed in the Windows 10 and Windows Server 2016 update history Knowledge Base article.
Changes by location
Chile
Starting in 2019, the DST period for the Republic of Chile starts at midnight on the first Sunday in September and ends at midnight on the first Sunday in April. The current DST observation in Chile ends at midnight on Saturday, April 6, 2019.
On Easter Island, the DST start and end dates occur one day prior to main observation in Chile at 10 P.M. on both days.
Note The Magallanes region does not currently observe DST. Therefore, it is not affected by this change.
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Time zone key name |
Display name |
New DST start date |
New DST end date |
Chile Standard Time |
(UTC-04:00) Santiago |
September 8, 2019, at 00:00 |
April 7, 2019, at 00:00 |
(UTC-06:00) Easter Island |
September 7, 2019, at 22:00 |
April 6, 2019, at 22:00 |
Update information
The update that is described in this article makes DST changes for the Republic of Chile and Easter Island.
For more information about how DST changes may affect other Microsoft products, go to the following Microsoft website:
For more information about how to configure DST settings in Windows, see the following 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.
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, seeMethod 2: Windows Server Update Service
This update is now available for installation through WSUS.
Method 3: Microsoft Update Catalog
To get the standalone 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
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 standalone 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.
Prerequisites
To apply this update, you must have Service Pack 1 for Windows 7 or Windows Server 2008 R2 installed, or Service Pack 2 for Windows for Windows Server 2008 installed. There are no prerequisites to install this update on Windows Server 2012.
Registry information
To apply this update, you do not have to make any changes to the registry.
Restart requirement
You do not have to restart the computer after you install this update.
References
Learn about the terminology that Microsoft uses to describe software updates.