DST changes in Windows for Morocco: May 2020

Applies to: Windows Server 2012 R2 FoundationWindows 8.1 EnterpriseWindows 8.1 Pro


This article describes an update that makes daylight saving time (DST) and time zone changes in Windows for the Kingdom of Morocco. 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 Server 2008 R2 Service Pack 1 (SP1)
  • Windows 7 SP1
  • Windows Server 2008 Service Pack 2 (SP2)

Changes by location


On the occasion of the holy month of Ramadan, the Kingdom of Morocco will observe the following daylight saving time (DST) changes:

  • Morocco will return to Greenwich Mean Time (GMT) on Sunday, April 19, 2020, at 03:00.
  • After the month of Ramadan, clocks will be set forward one hour (to GMT+1) on Sunday, May 31, 2020, at 02:00. 
Time zone key name Display name New DST end date New DST start date
Morocco Standard Time (UTC+01:00) Casablanca April 19, 2020, at 03:00 May 31, 2020, at 02:00

Update information

The update that is described in this article makes changes in the DST settings for the Kingdom of Morocco.

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:

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.

How to get this update

Method 1: Windows Update

This update is included in the May 12, 2020 update rollups and later update rollups through Windows Update.
To learn more about the update rollups that have been released for these operating systems, see the following Microsoft Knowledge Base articles:

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

Method 2: Windows Server Update Services (WSUS)

This update is available for installation through WSUS.

Method 3: Microsoft Update Catalog

To get the standalone package of this update for Windows 8.1, Windows Server 2012 R2, and earlier versions, go to the Microsoft Update Catalog website.

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


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 Server 2008 installed.

Note There are no prerequisites to apply 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 apply this update.


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