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To do this, first create a registry file. The method that you use to do this depends on whether you have English builds of Windows or non-English builds of Windows. How to create a registry file for English builds of Windows Note The following time zone registry file is for use only on English builds of Windows.
Several of the values in the registry subkeys have been localized. Therefore, these steps will work only on English builds of Windows. To use Registry Editor to create a registry file that contains the time zone updates for English builds of Windows, follow these steps:. Click Start , click Run , type notepad , and then click OK. Select a destination, and then type TZupdate. In the Save as type box, click All Files , and then click Save. How to create a registry file for non-English builds of Windows Note The registry text that follows does not include information for new time zones, such as Venezuela Standard Time or Armenian Standard Time.
Some of the registry subkeys in each time zone are locale-specific. Therefore, we have not included them in this list. For instructions about how to use TZEdit. To use Registry Editor to create a registry file that contains the time zone updates for non-English builds of Windows, follow these steps:. Use one client computer as a baseline for the registry file that you want to create or to export in your environment.
On that client computer, click Start, click Run , type notepad, and then click OK. Windows Registry Editor Version 5. When you are prompted to merge the changes, click Yes to update the registry. In the File name box, type TZUpdate. The registry must be updated in two locations. When you import the TZupdate.
Next, you must create a script that updates th e TimeZoneInformation registry key in the current control set. You can deploy this script by using Group Policy or another deployment mechanism. The script identifies the current time zone of the client computer and then reloads the TimeZoneInformation registry key with the updated information from the time zone database.
Then, the script writes an event to the Application log of the client computer where the script was run. To create the script file, follow these steps. Note Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose.
This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures.
Microsoft support engineers can help explain the functionality of a articular procedure. However, they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements. Select a destination, and then type refreshTZinfo. The following example demonstrates how to create a startup script, copy files to a common location in the domain, and then create a Group Policy object GPO.
This example uses an Active Directory deployment together with the sample domain name contoso. Time zones failed to enumerate properly or matching time zone not found. Unable to refresh the Timezone database. Copy the following files to the Netlogon share folder of the domain controller that holds the PDC emulator role in the domain:. Wait until Active Directory replication occurs. Also, wait until the files and folders in the system volume SYSVOL shared folder replicate to domain controllers in the domain.
Click Start , click Run , type control admintools , and then click OK. Select an OU that contains the computers that you want to apply this script to.
This example also assumes that this OU contains all computer accounts. Double-click Startup , and then click Add. Method 2: Change the time zone settings on a single computer To change the time zone settings on a single computer, use the Time Zone Editor Tzedit. This tool lets you create and edit time zone entries for the date and time settings in Control Panel. We strongly recommend that you use Microsoft Update or download the time zone update from the Microsoft download site instead of manually editing the registry.
Manual edits to the registry are risky and prone to errors. These alternative instructions for configuring are provided for legacy purposes only.
Note You must have local administrative credentials to change time zone registry information by using the Time Zone Editor. The following file is available for download from the Microsoft Download Center:. By making sure that the changes have been applied to the TimeZoneInformation registry key, you can verify that the time zone database and the current control set have been updated correctly.
To verify that the time zone updates have been successfully applied to the computer, use one of the following methods. You can use the Date and Time item in Control Panel to make sure that the DST rule that is in effect on the computer matches the start dates and end dates that are described in the latest DST update. This example uses Pacific Standard Time.
The following configuration details for this time zone are copied from article To verify the changes by using the Date and Time item in Control Panel, follow these steps:. Click Start , click Run , type control timedate. Set the date and time to one minute before the start of DST. For example, change the date and time to March 11, at A. Set the date and time to one minute before the end of DST. For example, change the date and time to November 4, at A.
You can use Method 1 if you used the registry file and the script methods. However, Method 1 is not practical in a network environment that contains multiple computers.
The refreshTZinfo. In a networked environment, administrators can determine whether the computer time zone information has been updated successfully by using the EventCombMT tool to search for particular event entries. When you run the EventCombMT utility, use the following parameters to search for the event that is generated by the Visual Basic script. Event information if the time zone information is updated successfully. Event information if the time zone information update fails.
How to add, modify, or delete registry subkeys and values by using a registration entries. Micrsoft Windows. Microsoft Office help and training. Windows Server R2 Foundation Windows 8. Disclaimer This article will be updated as new time zone changes are announced. To download this update, see the following article in the Microsoft Knowledge Base: DST changes in Windows for Yukon, Canada: September 8, DST changes Yukon, Canada On the occasion of the end of daylight saving time DST on November 1, , Yukon is making the following changes: Yukon will not adjust its clock on November 1, to move back by an hour and will continue to remain on local time.
To download this update, see the following article in the Microsoft Knowledge Base: - DST changes in Windows for Haiti and Morocco Time zone changes Haiti Haiti recently resumed its observance of daylight saving time, setting clocks forward by one hour. To download this update, see the following article in the Microsoft Knowledge Base: Turkey ends DST observance Time zone changes Turkey Turkey has announced that it will no longer observe daylight saving time going forward.
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