{"id":1839,"date":"2023-12-21T07:47:37","date_gmt":"2023-12-21T07:47:37","guid":{"rendered":"https:\/\/certera.com\/kb\/?p=1839"},"modified":"2026-03-16T10:32:29","modified_gmt":"2026-03-16T10:32:29","slug":"how-to-fix-the-neterr-cert-date-invalid-error","status":"publish","type":"post","link":"https:\/\/certera.com\/kb\/how-to-fix-the-neterr-cert-date-invalid-error\/","title":{"rendered":"How to Fix the NET::ERR CERT DATE INVALID Error?"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Overview<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Have you ever encountered the ERR_CERT_DATE_INVALID error on Google Chrome, a browser used by 2.65 billion+ people? A common roadblock indicates a mismatch in your computer&#8217;s date and time settings or an issue with the validity of the <a href=\"https:\/\/certera.com\/buy-ssl-certificates\">website&#8217;s SSL certificate<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Displaying the ERR_CERT_DATE_INVALID error is Chrome&#8217;s way of alerting you to potential security concerns, akin to the fact that your connection is not private. All that this error wants to indicate is to highlight possible privacy risks involved in proceeding with the connection.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this article, we will explore the error in discussion in depth. <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/certera.com\/\"><img decoding=\"async\" width=\"960\" height=\"150\" sizes=\"(max-width: 960px) 100vw, 960px\" src=\"https:\/\/certera.com\/kb\/wp-content\/uploads\/2024\/05\/buy-ssl-certificates-cta-jpg.webp\" alt=\"Buy SSL Certificates\" class=\"wp-image-2028\" srcset=\"https:\/\/certera.com\/kb\/wp-content\/uploads\/2024\/05\/buy-ssl-certificates-cta-jpg.webp 960w, https:\/\/certera.com\/kb\/wp-content\/uploads\/2024\/05\/buy-ssl-certificates-cta-300x47.webp 300w, https:\/\/certera.com\/kb\/wp-content\/uploads\/2024\/05\/buy-ssl-certificates-cta-768x120.webp 768w\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What is the ERR_CERT_DATE_INVALID Error?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The<strong> NET::ERR_CERT_DATE_INVALID error<\/strong> typically appears as a warning in web browsers like Google Chrome. The error indicates a problem with the validity period of the SSL certificate, which could be because it has expired or isn&#8217;t yet valid. This issue typically occurs due to incorrect system date and time settings on the user&#8217;s end.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When you encounter this error, your browser may also display a warning message &#8211; <strong><a href=\"https:\/\/certera.com\/kb\/how-to-fix-your-connection-is-not-private-on-windows-and-mac\/\">Your Connection is Not Private<\/a><\/strong>. This pop-up serves as a cautionary note about potential security risks, and ignoring it can expose you to a number of security vulnerabilities.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ERR_CERT_DATE_INVALID Versions on Different Browsers<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Other browsers also have their own version of the error, such as:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>On <strong>Chrome, <\/strong>you would get &#8211; Your Connection is Not Private<\/li>\n\n\n\n<li>On <strong>Firefox, <\/strong>you would get &#8211; Warning: Potential Security Risk Ahead<\/li>\n\n\n\n<li>On <strong>Safari, <\/strong>you would get &#8211; Safari can&#8217;t verify the identity of the website<\/li>\n\n\n\n<li>On <strong>Microsoft Edge, <\/strong>you would get &#8211; Your connection isn&#8217;t private<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What Are the Causes?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">There are numerous reasons, apart from incorrect date and time settings, that can give birth to the error we are discussing, such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Problem with User&#8217;s Computer<\/li>\n\n\n\n<li>Browser-Related Issues<\/li>\n\n\n\n<li>Issues with the SSL Certificate Itself<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Whatever the reason, the &#8220;good news&#8221; is that you can make it &#8211; Go Away!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the ERR_CERT_DATE_INVALID Error?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Utilize the methods mentioned below. One of these methods will get the issue fixed.<\/p>\n\n\n\n<ul start=\"1\" class=\"wp-block-list\">\n<li>Refresh the Page<\/li>\n\n\n\n<li>Adjust System&#8217;s Date and Time Settings<\/li>\n\n\n\n<li>Determine Whether the Certificate Has Expired or is Faulty<\/li>\n\n\n\n<li>Update Operating System and Browser<\/li>\n\n\n\n<li>Temporarily Disable Antivirus Software and Firewall<\/li>\n\n\n\n<li>Temporarily Disable Browser Extensions<\/li>\n\n\n\n<li>Clear Browser&#8217;s Cache and Cookies<\/li>\n\n\n\n<li>Clear SSL Cache<\/li>\n\n\n\n<li>Change Your Domain Name System (DNS) Server<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Let&#8217;s explore each method in depth.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Method 1: Refresh the Page<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Refreshing the page can resolve the ERR_CERT_DATE_INVALID error in cases where temporary network issues or browser cache problems are at play. A refresh prompts the browser to re-establish a connection and reload the website&#8217;s SSL certificate information.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To refresh the page, you can click the &#8211; F5 button. You can also click the &#8211; Reload this page icon, placed on the left of the URL address bar.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Method 2: Check Your Date and Time<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sometimes, the issue in the discussion can be because of the system&#8217;s incorrect date and time settings. Hence, double-check those settings. If they need to be corrected &#8211; modify them.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Follow the steps given below to adjust the date and time settings:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Click <strong>Search<\/strong>, placed on the taskbar.<\/li>\n\n\n\n<li>Type <strong><em>Set the time zone automatically<\/em><\/strong> and press <strong>Enter<\/strong>.<\/li>\n\n\n\n<li>Click on the <strong>Set time automatically <\/strong>toggle button.<\/li>\n\n\n\n<li>Click on the <strong>Set time zone automatically <\/strong>toggle button.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Method 3: Determine Whether the Certificate Has Expired or is Faulty<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">An expired or faulty installed SSL certificate on the website can cause this error. Ensure the certificate is valid and correctly installed. You can also use free <a href=\"https:\/\/certera.com\/ssl-tools\/ssl-checker\">online SSL checker tools<\/a> to learn about the SSL certificate state installed on a domain.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Follow the steps mentioned below to check the SSL certificate:<\/strong><\/p>\n\n\n\n<ul start=\"1\" class=\"wp-block-list\">\n<li>Click the <span style=\"box-sizing: border-box; margin: 0px; padding: 0px;\"><strong>address bar&#8217;s View site information&nbsp;<\/strong>icon (the padlock icon)<\/span>.<\/li>\n\n\n\n<li>Click the right arrowhead (<strong>Connection is secure<\/strong>) option.<\/li>\n\n\n\n<li>Click <strong>Certificate is valid<\/strong>.<\/li>\n\n\n\n<li>The <strong>Certificate Viewer <\/strong>window will appear.<\/li>\n\n\n\n<li><span style=\"box-sizing: border-box; margin: 0px; padding: 0px;\">View the certificate details in the&nbsp;<strong>Certificate Viewer&nbsp;<\/strong>window<\/span> and confirm whether it is current.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Method 4: Update Operating System and Browser<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Updating your operating system and browser can resolve the ERR_CERT_DATE_INVALID error by ensuring you have the <a href=\"https:\/\/certera.com\/blog\/ssl-tls-timeline-history-of-ssl-tls-protocol-versions\/\">latest security protocols<\/a> and compatibility updates. These updates often include patches for known bugs and improvements in handling SSL certs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Follow the steps mentioned below to update the browser:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Open a fresh tab in <strong>Chrome<\/strong>.<\/li>\n\n\n\n<li>Click on <strong>Customize and control Google Chrome<\/strong> icon (three vertical dots).<\/li>\n\n\n\n<li>From the list, select <strong>Help<\/strong>, and click <strong>About Google Chrome<\/strong>.<\/li>\n\n\n\n<li>The update will start automatically. (If using an older version)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Follow the steps mentioned below to update the Operating System:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Click <strong>Search <\/strong>placed on the taskbar.<\/li>\n\n\n\n<li>Type <strong>Windows Update settings <\/strong>and press <strong>Enter.<\/strong><\/li>\n\n\n\n<li>The <strong>Settings <\/strong>window will appear.<\/li>\n\n\n\n<li>Click on the <strong>Check for updates<\/strong> button.<\/li>\n\n\n\n<li>Once it&#8217;s updated, re-access the site.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Method 5: Temporarily Disable Antivirus Software and Firewall<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Antivirus software or firewalls might mistakenly flag a website&#8217;s SSL cert as untrustworthy or block certain aspects of the web communication. By temporarily turning off these security measures, you can test if they cause this warning.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Follow the steps given below to turn off the antivirus temporarily:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Click the <strong>Search <\/strong>icon, type <strong>Windows Security<\/strong>, and press <strong>Enter<\/strong>.<\/li>\n\n\n\n<li>In the left pane, click the <strong>Virus &amp; threat protection<\/strong> option.<\/li>\n\n\n\n<li>In the right pane, click the <strong>Manage settings<\/strong> option under the <strong>Virus &amp; threat protection settings<\/strong> section.<\/li>\n\n\n\n<li>Under the <strong>Real-time protection<\/strong> section, use <strong>the toggle switch <\/strong>to disable it.<\/li>\n\n\n\n<li>In the <strong>User Account Control<\/strong> window, click <strong>Yes<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Follow the steps given below to disable the firewall:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Click the <strong>Search <\/strong>icon, type <strong>Windows Defender Firewall<\/strong>, and press<strong> Enter<\/strong>.<\/li>\n\n\n\n<li>In the left pane, click the <strong>Turn Windows Defender Firewall on or off<\/strong> option.<\/li>\n\n\n\n<li>Under the <strong>Private network settings<\/strong> section, check the checkbox before the <strong>Turn off Windows Defender Firewall (not recommended)<\/strong> option.<\/li>\n\n\n\n<li>Check the checkbox before the <strong>Turn off Windows Defender Firewall (not recommended)<\/strong> option and click <strong>OK<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Method 6: Temporarily Disable Browser Extensions<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Browser extensions can cause ERR_CERT_DATE_INVALID error. To find the culprit, remove each extension individually and check if the error persists.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Follow the steps given below to remove extensions individually:<\/strong><\/p>\n\n\n\n<ul start=\"1\" class=\"wp-block-list\">\n<li>Open a fresh tab in <strong>Google Chrome<\/strong>.<\/li>\n\n\n\n<li>Click the <strong>Extensions <\/strong>icon.<\/li>\n\n\n\n<li>Click on the <strong>more options<\/strong> icon (three vertical lines) placed adjacent to any extension of your choice (that you want to disable), and click <strong>Remove<\/strong> from Chrome.<\/li>\n\n\n\n<li>Click <strong>Remove <\/strong>again.<\/li>\n\n\n\n<li>Reload the website and verify whether the error exists or not.<\/li>\n\n\n\n<li>If it does, repeat the process from <strong>Step 2<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Method 7: Clear the Browser&#8217;s Cache and Cookies<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The browser cache stores copies of web pages, while cookies save user preferences and login states. If the cached version of a website or its SSL cert is outdated or corrupt, it can lead to an error in question.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Follow the steps given below to clear cookies and cached data:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Open a fresh tab in <strong>Chrome<\/strong>.<\/li>\n\n\n\n<li>Click on<strong> Customize and Control Google Chrome<\/strong> list (<strong>three horizontal dots<\/strong> in the top right corner.)<\/li>\n\n\n\n<li>From the list, click <strong>History<\/strong>.<\/li>\n\n\n\n<li>The <strong>History <\/strong>window will appear.<\/li>\n\n\n\n<li>In the <strong>History <\/strong>window, click the blue <strong>Clear browsing data<\/strong> link.<\/li>\n\n\n\n<li>Click the checkbox in front of the <strong>Browsing history<\/strong> checkbox.<\/li>\n\n\n\n<li>Click the checkbox in front of the <strong>Cookies and site data <\/strong>checkbox.<\/li>\n\n\n\n<li>Click the check box in front of the<strong> Cached images and files<\/strong> checkbox.<\/li>\n\n\n\n<li>Click <strong>Clear data<\/strong>.<\/li>\n\n\n\n<li>If the &#8220;<strong>Also clear data from these sites?<\/strong>&#8221; prompt pops up, click <strong>Clear<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Method 8: Clear SSL Cache<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Clearing your DNS cache can resolve this error by eliminating outdated or corrupted cache entries that may be causing the issue.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Follow the steps mentioned below to accomplish the same:<\/strong><\/p>\n\n\n\n<ul start=\"1\" class=\"wp-block-list\">\n<li>Click <strong>Search<\/strong>, placed on the taskbar.<\/li>\n\n\n\n<li>Type <strong>cmd<\/strong> in the right pane, and click <strong>Run as administrator<\/strong>.<\/li>\n\n\n\n<li>The <strong>Command Prompt <\/strong>window will appear.<\/li>\n\n\n\n<li>In the <strong>Command Prompt <\/strong>window, type <strong>ipconfig \/flushdns<\/strong>.<\/li>\n\n\n\n<li>Press <strong>Enter<\/strong>.<\/li>\n\n\n\n<li>A message stating &#8220;<strong>Windows IP configuration Successfully flushed the DNS Resolver Cache&#8221; <\/strong>message will appear.<\/li>\n\n\n\n<li>Re-access the website again.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Method 9: Change Your Domain Name System (DNS) Server<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Changing your Domain Name System server can sometimes resolve this pop-up by altering the path through which your browser retrieves website data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Switching to a different DNS server, like Google&#8217;s Public DNS, might enable a more accurate and updated retrieval of site&#8217;s SSL cert.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Follow the steps mentioned below to change your DNS name:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Click <strong>Search<\/strong>, placed on the taskbar.<\/li>\n\n\n\n<li>Type <strong>Control Panel<\/strong>, press <strong>Enter<\/strong>.<\/li>\n\n\n\n<li>Click <strong>Network and Internet<\/strong>.<\/li>\n\n\n\n<li><strong>Click Network and Sharing Center.<\/strong><\/li>\n\n\n\n<li><strong>Change adapter settings.<\/strong><\/li>\n\n\n\n<li><strong>Right-click <\/strong>on your connection and select <strong>Properties<\/strong>.<\/li>\n\n\n\n<li>Select <strong>Internet Protocol Version 4 or 6<\/strong>.<\/li>\n\n\n\n<li>click <strong>Properties.<\/strong><\/li>\n\n\n\n<li>From the list, select <strong>Use the following DNS server addresses.<\/strong><\/li>\n\n\n\n<li>Enter <strong>DNS <\/strong>(ex &#8211; 8.8.8.8)<\/li>\n\n\n\n<li>Click <strong>OK<\/strong>.<\/li>\n\n\n\n<li><strong>Restart <\/strong>the system.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Addressing ERR_CERT_DATE_INVALID error involves straightforward fixes such as &#8211; refreshing the page, adjusting date and time settings, verifying the SSL certificate, updating your browser and OS, and tweaking security settings.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview Have you ever encountered the ERR_CERT_DATE_INVALID error on Google Chrome, a browser used by 2.65 billion+ people? A common roadblock indicates a mismatch in your computer&#8217;s date and time settings or an issue with the validity of the website&#8217;s SSL certificate. Displaying the ERR_CERT_DATE_INVALID error is Chrome&#8217;s way of alerting you to potential security<span class=\"morelink d-block mt-3\"><a href=\"https:\/\/certera.com\/kb\/how-to-fix-the-neterr-cert-date-invalid-error\/\">Read More<\/a><\/span><\/p>\n","protected":false},"author":5,"featured_media":1840,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[300,299],"class_list":["post-1839","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ssl-errors","tag-err_cert_date_invalid","tag-fix-net-err_cert_date_invalid-error","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Fix NET::ERR_CERT_DATE_INVALID Error Message?<\/title>\n<meta name=\"description\" content=\"Encountering the ERR_CERT_DATE_INVALID error? 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