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This update applies to the following operating systems:
Starting on January 1, 2019, at 02:00, São Tomé moved from the UTC+01:00 time zone to UTC+00:00.
| Time zone key name | Display name | Old time zone | New time zone |
| São Tomé Standard Time | (UTC+00:00) São Tomé | (UTC+01:00) São Tomé | (UTC+00:00) São Tomé |
On December 21, 2018 at 00:00 local time, the Qyzylorda region of Kazakhstan moved from the UTC+06:00 time zone to UTC+05:00. Customers can now switch to the new time zone for Qyzylorda, which is displayed as (UTC+05:00) Qyzylorda.
| Time zone key name | Display name | Old time zone | New time zone |
| Qyzylorda Standard Time | (UTC+05:00) Qyzylorda | (UTC+06:00) Astana | (UTC+05:00) Qyzylorda |
The update that is described in this article makes time zone changes in for São Tomé and Príncipe, and Qyzylorda, Kazakhstan.
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.
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.
This update is now available for installation through WSUS.
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