How to Fix Internet Time Sync Error on Windows 10 and 11

Having trouble with your Windows computer’s internet time synchronization? An incorrect system clock can lead to issues with security certificates, login problems, and syncing errors with online services. Fixing the internet time sync error ensures your system clock stays accurate, which is vital for smooth operation, secure browsing, and proper functioning of apps that rely on correct time settings. Before starting, make sure your PC is connected to the internet and you have administrator rights, as some steps require elevated permissions.

What You’ll Need

• Active internet connection
• Administrative privileges on your Windows account
• Optional: Windows Troubleshooter (built-in tool)

Step-by-Step

1. Check Your Date and Time Settings
   Open the Settings app by pressing Windows key + I. Navigate to Time & Language > Date & Time. Ensure that Set time automatically and Set time zone automatically are toggled on. If they are already enabled, toggle them off and then on again to refresh the settings. Confirm that the displayed date, time, and time zone are correct. Incorrect manual settings can interfere with synchronization.
2. Manually Synchronize the Clock
   Still in Date & Time, scroll down to the Synchronize your clock section. Click on the Sync now button. This forces Windows to contact the time server and update your system clock immediately. If this doesn’t work or the button is greyed out, proceed to the next step.
3. Check Windows Time Service Status
   Open the Services app by pressing Windows key + R, typing services.msc, and hitting Enter. Locate Windows Time in the list. Ensure its status is ‘Running’ and the startup type is set to ‘Automatic’. If not, right-click on it, choose Properties, set Startup type to Automatic, and click Start if the service is stopped. Click Apply and OK.
4. Re-register Windows Time Service
   Open Command Prompt as administrator by right-clicking the Start button and selecting Command Prompt (Admin) or Windows PowerShell (Admin). Enter these commands one by one:

   net stop w32time
   w32tm /unregister
   w32tm /register
   net start w32time
   

   These commands stop the time service, unregister and re-register it, then restart it. After executing, go back to Date & Time settings and try to sync again.

5. Configure Internet Time Server
   In the Date & Time settings, scroll down and click Additional settings > Sync now. Or, open Control Panel > Clock and Region > Date and Time > Internet Time tab. Click Change settings. In the server dropdown, select a reliable time server such as ‘time.windows.com’ or ‘time.nist.gov’. Click Update now and wait for confirmation. If errors persist, try changing the server to another option.
6. Update Windows
   Outdated Windows files can cause sync issues. Go to Settings > Update & Security > Windows Update. Click Check for updates. Install any available updates, then restart your PC. After updating, repeat the previous steps to sync time.
7. Reset Windows Time Configuration via Command Line
   If previous steps fail, reset the time configuration completely. Open Command Prompt as administrator and run:

   sc config w32time start= auto
   w32tm /config /update
   net stop w32time
   w32tm /resync
   net start w32time

   > Then, try to sync the time again through the Settings.

Common Mistakes

• Not running Command Prompt as administrator – many commands require elevated privileges to execute properly.
• Disabling automatic time setting without re-enabling it afterward – this can cause manual sync issues.
• Using incorrect or unreliable time servers – always choose reputable servers like time.windows.com or time.nist.gov.
• Ignoring Windows updates – outdated system files can interfere with time synchronization.
• Stopping the Windows Time service without restarting or reconfiguring it properly – this can break sync functions.

Tips

• Ensure your PC’s timezone is correct, as a mismatched timezone can cause apparent sync errors.
• Perform a full system restart after making configuration changes to ensure they take effect.
• Use the built-in Windows Troubleshooter: go to Settings > Update & Security > Troubleshoot > Additional troubleshooters > Date and Time. Run the troubleshooter to automatically detect and fix issues.
• If you use third-party antivirus or firewall software, ensure it isn’t blocking time synchronization services.
• Consider resetting your network adapter if sync issues persist, as network problems can interfere with time server communication.

Troubleshooting

If the above steps don’t resolve your internet time sync error, consider these additional troubleshooting tips:

• Check your internet connection: Ensure you have a stable internet connection. Unstable networks can prevent proper communication with time servers.
• Disable and re-enable network adapters: Go to Control Panel > Network and Internet > Network and Sharing Center > Change adapter settings. Right-click your active network adapter, choose Disable, wait a few seconds, then right-click again and choose Enable.
• Flush DNS cache: Open Command Prompt as administrator and run

  ipconfig /flushdns

  . Sometimes DNS issues can affect server communication.

• Check for malware or system corruption: Run a full system scan with your antivirus software. You can also run the System File Checker by opening Command Prompt as admin and executing

  sfc /scannow

  .

• Perform a system restore: If the error started recently, restore your system to a previous point where time sync was working properly. Access System Restore via Control Panel > System and Security > System > System Protection.

Frequently Asked Questions

1. Why is my Windows clock always wrong?

This can be caused by incorrect manual settings, disabled services, or issues with the time server. Following the steps above typically resolves these issues.

2. How do I change the default time server in Windows?

Open Control Panel > Clock and Region > Date and Time > Internet Time tab. Click Change settings, select a server like time.nist.gov, and click Update now.

3. What if my system still can’t sync time after trying all steps?

It may be due to deeper system issues or network restrictions. Consider performing a clean boot to eliminate conflicts or contact technical support for assistance.

4. Can third-party antivirus software affect time sync?

Yes, some antivirus or firewall programs may block time synchronization services. Temporarily disable them to test if they are the cause.

5. Is it safe to manually set the time instead of syncing?

While it can fix immediate issues, manually setting the time can cause problems with security certificates and scheduled tasks. It’s better to fix synchronization issues.

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