DST changes in Windows for Northern Cypress, Mongolia, and Russian Saratov region

Summary

Cyprus

Northern Cyprus has stopped observing daylight saving time. This new policy went into effect on October 30, 2016. Going forward, the area will remain set at UTC+03:00. Time zone key name	Old time zone	Time zone to use going forward
Turkey Standard Time	(UTC+02:00) Athens, Bucharest	(UTC+03:00) Istanbul

Saratov (Russia)

The Russian government recently announced that the Saratov region time zone was moved from UTC+03:00 to UTC+04:00. This change went into effect at 02:00 on December 4, 2016.Time zone key name	Old time zone	New time zone
Saratov Standard Time	(UTC+03:00) Moscow, St. Petersburg, Volgograd	(UTC+04:00) Saratov

Tonga

Tonga reintroduced DST observance last year, beginning at 02:00 on November 6, 2016. For this year, DST in Tonga ended at 03:00 on January 15, 2017.Time zone key name	DST display name	DST start	DST end
Tonga Standard Time	(UTC+14:00) Nuku’alofa Island	November 6, 2016, 02:00	January 15, 2017, 03:00
Additionally, we are introducing a time zone, (UTC+13:00) Coordinated Universal Time+13. This new time zone is for use by other small Pacific regions, such as the Phoenix Islands and Fakaofo Atoll.

Mongolia

Mongolia is no longer observing DST going forward. DST in Mongolia was previously scheduled to begin on March 25, 2017.

Affected operating systems

This update applies to the following operating systems:

• Windows Server 2012 R2
• Windows Server 2012
• Windows 8.1
• Windows Server 2008 R2 Service Pack 1 (SP1)
• Windows 7 SP1
• Windows Server 2008 Service Pack 2 (SP2)
• Windows Vista SP2

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

Resolution

The update that is described in this article removes the DST observation for Northern Cypress and moves the Saratov region of Russia ahead one hour.

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.

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.

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 Vista and 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.

References

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