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.