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How to change the time server on Windows 10
Open Control Panel.
Click on Clock, Language, and Region.
Click on Date and Time.
Click on the Internet Time tab.
Click the Change settings button.
Check that the Synchronize with an internet time server option is selected.
Use the drop-down menu to select a different server.
Click the Update now button to synchronize the time with the new server.
Click OK.
Click Apply.
Click OK.
After completing the steps, Windows 10 will keep the time synchronized over the internet with the server you selected.
How to add new time servers on Windows 10
If you prefer to use a different time server that isn't in the list, it's also possible to include any NTP server you want.
Open Control Panel.
Click on Clock, Language, and Region.
Click on Date and Time.
Click on the Internet Time tab.
Click the Change settings button.
Check that the Synchronize with an internet time server option is selected.
Click the drop-down menu, and next to "Server," and type the new address of the time server.
Click the Update now button to resynchronize.
Click OK.
Click Apply.
Click OK.
After adding the new configuration, you can quickly verify everything is working as expected by checking the Internet Time tab, which now should include a "The clock was successfully synchronized" message with the link to the NTP server and date and time of the synchronization.
You can find a list of time servers in your country just by searching for "time server YourCountry" on the internet, change "YourCountry" for your country's name.