How to fix Windows 10 clock if it’s wrong

Milan Stanojevic avatar. By: Milan Stanojevic
6 minute read
windows 10 clock fix

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Although Windows 10 is an amazing operating system, there are still some minors issues that can appear once in a while.

One issue reported by the users is that clock is wrong on their Windows 10 PC, and although this isn’t a big problem, it can certainly be an inconvenience, so let’s see how to fix it.

Fix Windows 10 clock is wrong

  1. Check Windows Time service settings
  2. Change Internet Time server
  3. Unregister and register Windows Time service
  4. Remove Adobe Reader
  5. Check your computer battery
  6. Update your BIOS
  7. Add RealTimeIsUniversal DWORD in Registry Editor
  8. Update Windows 10
  9. Replace your CMOS battery
  10. Scan your computer for malware
  11. Temporarily change your time zone
  12. Temporarily change your time zone

Solution 1 – Check Windows Time service settings

If your Windows 10 clock is wrong, it might be due to your Windows Time service configuration. If this service isn’t properly configured and running, you might experience problems with your clock. In order to check Windows Time service, you need to do the following:

  1. Press Windows Key + S and enter Services. Choose Services from the menu.
    services-search-bar
  2. Once the Services window opens, locate Windows Time service and double click it.
  3. Check the Startup type section and set it to Automatic.
    startup-type
  4. Check the Service status. If the service is running, click Stop and then click Start again. If the service isn’t running, click the Start button to start it.
  5. Click Apply and OK.

Few users are also suggesting to change the Startup type to Disabled and restart your computer. We’re not sure if changing the Startup type to Disabled works, but you could try doing that as well.

Solution 2 – Change Internet Time server

Wrong system clock on Windows 10 might be caused by a problem with Internet Time server. Fortunately, you can easily change the Internet Time server by following one of these steps:

  1. Open Control Panel. You can do that by pressing Windows Key + S, typing Control Panel and choosing Control Panel from the list of results.
    search-control-panel
  2. Once you open Control Panel, navigate to Clock, Language and Region section and click on Date and Time.
    date-and-time
  3. Navigate to Internet Time tab and click Change settings button.
    change-settings
  4. In the Server section select time.nist.gov instead of time.windows.com and click Update now.
    time-nist-gov
  5. Click OK to save changes.

Solution 3 – Unregister and register Windows Time service

When Windows 10 clock is wrong, you can usually fix it by re-registering the Windows Time service. This is a rather simple process and you can do it by doing the following:

  1. Open Command Prompt as administrator. You can do that by pressing Windows Key + X and choosing Command Prompt (Admin) from the menu.
    command-prompt-admin
  2. Once the Command Prompt opens, enter the following lines and press Enter after each line in order to run it:
    • w32tm /unregister
    • w32tm /register
    • net start w32time
    • w32tm /resync
  3. Close Command Prompt and restart your computer. Once your computer restarts, the issue should be resolved.

Solution 4 – Remove Adobe Reader

This is a rather peculiar solution, but users claim it works, so you might try it. According to users, this issue is caused by Adobe Reader, and in order to fix it you need to remove Adobe Reader and change your time zone to any other time zone. To do that, simply open Settings app and go to Time & Language settings.
time-zone

Once you’ve changed your time zone, restart your computer, and set your time zone to the correct one. Download and install Adobe Reader and restart your computer once again.

Solution 5 – Check your computer battery

If the clock on Windows 10 is wrong, you might want to check your computer battery. Time and date settings are stored in BIOS, so if your battery is corrupted BIOS won’t be able to properly store the time and date settings thus causing your clock to show incorrect time in Windows 10. Simplest way to check if your battery is working is to enter BIOS and check the clock from there. To Enter BIOS, you’ll have to press Del or F2 while your computer boots. Some motherboards use different key to access BIOS, so you might want to check your motherboard manual for more information.


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  2. Click “Start Scan” to find Windows issues that could be causing PC problems.
  3. Click “Repair All” to fix all issues with Patented Technologies (requires upgrade).

If the clock in BIOS is correct, your battery is working properly and there’s no need to replace it. If the clock in BIOS isn’t showing the correct time, you should replace your computer battery. Replacing your computer battery is rather simple, but you need to make sure to get a battery with same characteristics in order to avoid causing any damage to your computer. If you don’t know how to perform this process, please contact an expert.

Solution 6 – Update your BIOS

In some cases, this issue can be caused by outdated BIOS, and some users recommend that you try updating it. Before you decide to update your BIOS, make sure to check your motherboard manual for detailed instructions in order to avoid causing permanent damage to your computer.

Some users also suggest that entire BIOS chip needs to be replaced, but that’s a highly advanced procedure that needs to be performed by an expert.

Solution 7 – Add RealTimeIsUniversal DWORD in Registry Editor

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This solution applies if you’re using dual-boot of Windows 10 and Linux. If you’re not using dual-boot, you can skip this solution because it won’t work for you. In order to complete this solution, you need to make some changes in both Linux and Windows. Log in to Linux and run the following commands as a root user:

  1. ntpdate pool.ntp.org
  2. hwclock –systohc –utc

Now restart to Windows 10 and do the following:

  1. Press Windows Key + R and enter regedit. Press Enter or click OK.
    regedit
  2. Once Registry Editor opens, navigate to the following key in the left pane:
    • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation
  3. Right click the empty space and select New > DWORD (32-bit) Value.
    new-dword
  4. Enter RealTimeIsUniversal as the name of the new value and double click it.
  5. Set its Value data to 1 and click OK to save changes.
    RealTimeIsUniversal-value

After you did all the aforementioned steps, problems with incorrect clock on Windows 10 should be fixed.

Solution 8 – Update Windows 10

Running outdated Windows 10 version may also trigger clock issues on Windows 10. Moreover, if this is a known issues, chances are that Microsoft already fixed it in the latest patches. So, navigate to Settings > Update & Security > Windows Update and check for updates.

check for updates

Install the available updates and then restart your computer and check if the clock displays the correct time.

Solution 9 – Replace your CMOS battery

Another possible explanation as to why your Windows 10 clock is wrong or falls behind is that your CMOS battery is flat. In this case, you need to replace the battery with a new one. This is a tricky method since the CMOS’s battery slot is normally located on the computer’s motherboard, so the best solution is to take your computer to a technician.

Solution 10 – Scan your computer for malware

Malware, viruses and other cyber threats may interfere with your Windows 10 clock and cause it to display time inaccurately.

Use your antivirus of choice and run a full system scan to detect and remove malware. Additionally, we recommend you to install a dedicated anti-malware tool as well, such as Bitdefender (currently 50% off on all plans). Rated as Nr. 1 world’s best Antivirus it will find all the malware you have on your PC and eliminate all the threats.

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Wait until the security solution has finished scanning your machine, then reboot it and check if the issue persists.

Solution 11 – Temporarily change your time zone

Some users confirmed that temporarily changing the time zone helped them fix the problem. So, go to Start> type ‘time’ and select the ‘Change time and date settings’. Change your time zone and leave it like that for a couple of minutes.

change time zone windows 10

Then return to the time and date settings and this time select your correct time zone. Restart your computer and check if the clock falls again behind or you experience any other time and date issues.

There are many reason why Windows 10 clock could be wrong, and although this isn’t a serious issue, it can certainly cause you some minor inconvenience. Most users reported that changing the Internet Time server or restarting the Windows Time service fixed the issue for them, so make sure to try those solutions first.


Editor’s Note: This post was originally published in April 2016 and has been since completely revamped and updated for freshness, accuracy, and comprehensiveness.


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For various PC problems, we recommend this tool.

This software will repair common computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance. Fix PC issues now in 3 easy steps:

  1. Download this PC Repair Tool rated "Excellent" on TrustPilot.com.
  2. Click “Start Scan” to find Windows issues that could be causing PC problems.
  3. Click “Repair All” to fix all issues with Patented Technologies (requires upgrade).

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