How to Solve “Your Clock is Ahead or Clock Behind” Error

Are you experiencing “Your clock is ahead”, “Your clock is behind”, or “NET:: ERR_CERT_DATE_INVALID” error while surfing the internet on your phone, tablet or computer?

Either of these errors implies that your computer or smart device time is incorrect. However, this may not always be the case. There are times the errors occur despite that your device time is correct. We will explain why and how to fix this later in this article.

Therefore, worry no more. We have all the details you need to know about this error. And guess what? We will show how to fix it. Let’s start.

You must have wondered why your device cares about the correct time. Let’s see what causes these clock errors.

What Causes Your Clock is Ahead/Your Clock is Behind Errors?

Both “Your clock is ahead” and “Your clock is behind” are SSL errors caused by invalid digital certificates. Websites use digital certificates to identify themselves on the Internet. For security reasons, these certificates are only valid for a given period.

For a website to load, browsers and servers must verify the validity of these certificates before creating an SSL session. If the certificates are valid, the website loads.

If your device’s time is incorrect, the certificates are invalid thus the browsers will fail to verify the certificates. As a result, your clock is ahead”, “your clock is behindand “NET::ERR_CERT_DATE_INVALID” errors are generated.

If you have to proceed, there are no two ways about this error. You have to correct your clock.

How Does “Your clock is Ahead/Behind Error” Appear

In Android: the error reads as follows. “A private connection to can’t be established because your device’s date and time are incorrect.”

In desktop: the error reads as follows. “Your clock is ahead”, “Your clock is ahead” or “NET::ERR_CERT_DATE_INVALID.”

Where Does Clock Ahead/Behind Error Occur?

In most cases, you will experience clock error when visiting specific websites in your browser. You may never experience such error when watching movies or music or even typing.

What does this tell you? The clock is something to do with accessing websites or apps. Let’s now understand what causes the error.

How to correct “your clock is ahead” or “your clock is behind error”

As we have stated earlier, the obvious cause of clock error is incorrect time. Below are steps to adjust the time on different devices.

1. Fix Clock Ahead/Behind in Android Devices

In Android, you may experience “Your clock is ahead,” “Your clock is behind,” or “NET::ERR_CERT_DATE_INVALID” errors when accessing Google Play or when trying to access specific website.

How do we fix this? Below are steps to adjust the time in Android devices. The solution is very simple!

You only need to adjust your android device’s time in two ways. You can forward the time in case your clock is behind error. Alternatively, you can backdate the time in case of your clock is ahead error.

 How to Adjust Time in Android Gadgets

Android devices are manufactured by different phone manufacturing companies. Popular companies currently include Samsung, Huawei, Nokia, Sony, Oppo, Xiaomi, and LG.

This is unlike Apple devices that are solely manufactured by Apple company. In that regard, adjusting the time in Android devices may differ from one phone to another.

However, there are two main standard ways to adjust the time in an Android device. Either manually or automatically in the device time settings as explained below.

i). Adjust time automatically. Two main methods of adjusting time automatically. First, nearly all android phones have time zones settings. By selecting a time zone that best lies in your location, time adjusts automatically.

Most Android devices have “Automatic date and time” feature in Date and Time settings.

What you need to do is to enable this setting. Your device will automatically adjust the time.

ii). Edit time Manually. To set the time manually, you first need to disable “Automatic date and time.” if your android device has this feature enabled.

By so doing, you activate the manual mode of setting android time. To set time, you need the correct time of your location otherwise the same error will re-occur.

Find a reliable gadget to refer to the correct time. The best gadget you can confirm time is the computer.

A computer clock is one of the most reliable since computers have an internal battery, popularly known as CMOS battery, that keeps the clock on even when powered off.

Then select and set date, select and set time, select and set the time zone, and select the preferred date and time format either 12-hour or 24-hour.

Navigate back to your browser. Refresh the page that generated that error. Continue surfing the internet happily.

Now you know. Next time your smartphone or tablet pops up the clock is ahead or clock is behind, you will relax, and sort yourself.

iii). ClockSync Android App: You can fix this annoying clock error using an android app. Below are the steps:

  1. On Google Play, Search and install App named “ClockSync”.
  2. Click Open. You will see 3 “time settings” options that include “Automatic time”, “system time”, “local offset”, and “Date”.
  3. Click the Automatic time option. Your device time will be corrected automatically. Time should be okay now.
  4. Refresh the page you were trying to browse. The clock error should now have cleared.

2. Fix Clock Ahead/Behind in Chrome in Windows 10

  1. Click Start window Button
  2. Type “Control” in the search text button.
  3. Click the “control panel” to open the control panel.
  4. Under control panel choose “Clock and Region”
  5. Under “date and time”, select “change time zone”.
  6. Select “internet time” in the options.
  7. Check “synchronize with the internet time server”.
  8. Then under the server option, select the “” option.
  9. Click “Update Now”. Your computer clock should now be okay.

What if Clock is Ahead/Behind Error Persist When Time is Correct?

The clock error can persist while browsing the internet even when your phone or computer clock is correct.  Such is common mostly when you are browsing. There are various reasons why this may occur.

In the first step, try accessing different websites on the same browser. If the error clears, then the problem is the browser you are using. Such will occur mostly in Chrome.

How to False Clear Ahead/Behind Error in Chrome

If you are using chrome, follow below steps to clear the error:

  • Clear cookies: Type “chrome://settings” in the search bar. Then type “cookies” and navigate to the last item and click “Browsing Data”. Choose time then click clear. Browse to see if the error clears. If not, try the following.
  • Disable and enable Chrome extension: Type “chrome://extension” to display all installed extension. Click the toggle button to disable all extensions. Enable one extension at a time to find out which extension causes the error. Then remove it.

If the problem persists, kindly let us know in the comments section. Cheers.


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