Setting Time Server –

To set the time server in Windows 11, open Settings > Time & language > Date & time and manually sync with a time server by changing the settings in the Control Panel. To change settings, open Control Panel, click Clock and Region, then Date and Time, go to the Internet Time tab, and click Change settings to enter a new server address. 

Using the Control Panel

1. Open Control Panel by searching for it in the Start menu. 
2. Click on Clock and Region, then select Date and Time. 
3. In the Date and Time window, go to the Internet Time tab. 
4. Click Change settings. 
5. Check the box for Synchronize with an internet time server. 
6. Enter a new time server address in the Server field (e.g., pool.ntp.org or time.nist.gov). 
7. Click Update now to sync your clock with the new server. 
8. Click OK to save your changes. 

Using Settings (Windows 11 Preview Builds)

• Some recent preview builds of Windows 11 allow you to change the time server directly through the Settings app. 
• Right-click the clock on the taskbar and select Adjust date and time. 
• Make sure Set time automatically is enabled and then click Sync now to ensure your computer can connect to a server. 
• If the option is available, you may see a Change the time server link under Additional settings. If you see it, click Change to enter a new server address.