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Time zone and DST changes in Windows for Brazil, Morocco, and São Tomé and Príncipe

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Summary

This article describes an update that makes time zone and daylight saving time (DST) changes in Windows for Brazil, Morocco, and São Tomé and Príncipe. 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 XP Embedded

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.
 

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Changes by location

Brazil

Starting this year, Brazil begins its DST observance on the first Sunday in November instead of the third Sunday in October. Clocks in Brazil will move forward one hour on November 4, 2018 at 00:00 hours.

Time zone key name Old DST start date New DST start date

E. South America Standard Time

Central Brazilian Standard Time

 Sunday, October 21 Sunday, November 4
 
 

Morocco

As usual, Morocco is suspending its daylight saving time (DST) period for the observation of the Muslim month of Ramadan from 03:00 on Sunday, May 13, 2018, to 02:00 on Sunday, June 17, 2018, in the Gregorian calendar.

During this period, clocks are turned back to Standard Time to shorten the evenings, making it easier for Muslims to observe the Ramadan fast during daylight hours.

A Windows update will be made available in April for Windows XP Embedded, Windows Server 2008 SP2, Windows 7 SP1, Windows Server 2008 R2 SP1, and Windows Server 2012. No Windows updates are required for Windows 8.1 and later versions because those systems make the adjustments automatically.

Time zone key name Display name DST ends DST resumes
Morocco Standard Time (UTC+00:00) Casablanca May 13, 2018 at 03:00 June 17. 2018 at 02:00
 
 

São Tomé and Príncipe

São Tomé and Príncipe moved from UTC+00:00 to UTC+01:00 on January 1, 2018 at 01:00 hours. A new time zone, "(UTC+01:00) Sao Tome," is being introduced for this region.

Time zone key name New time zone display name
Sao Tome Standard Time (UTC+01:00) Sao Tome

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Update information

The update that is described in this article makes changes in the time zone and DST settings for Brazil, Morocco, and São Tomé and Príncipe.

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 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: 


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

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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Prerequisites

To apply this update, you must have the April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed on Windows 8.1 or Windows Server 2012 R2. Or, install Service Pack 1 for Windows 7 or Windows Server 2008 R2. Or, install Service Pack 2 for Windows for Windows Server 2008.

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.
 
 

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References

Learn about the terminology that Microsoft uses to describe software updates.

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Keywords: kbSurveyNew, kb, kbfix, kbqfe, ATDownload, kbExpertiseInter

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Article Info
Article ID : 4093753
Revision : 10
Created on : 11/7/2019
Published on : 11/7/2019
Exists online : False
Views : 575