How to troubleshoot time related errors on secure websites

+ Certificates for secure websites (the address begins with + https://) are valid only for a certain period of time. + If a website presents a certificate with validity dates that don't match + the date on your computer's clock, Firefox can't verify that it is + secure and will show you an error page. +

+ Such issues can often be fixed by setting the correct date, time and + time zone on your computer system. If this does not solve the problem, + it could be caused by other issues, such as a misconfigured web server + or an expired certificate. +

+ + 1 + List of time-related error codes you may encounter + +
+ + 2 + Set your system clock to the correct time + +
+ + 3 + Contact the website owner + +
+ + 4 + Bypass the warning + +

+ +

+ Note: A Your Computer Clock is Wrong error + page almost certainly means that your computer's clock is set to the + wrong date. Some time-related errors will show a + Warning: Potential Security Risk Ahead error page. For other + time-related errors, you'll get a Secure Connection Failed or + Did Not Connect: Potential Security Issue error page. +

+ + +

+ Click + + More Information or + Advanced…, depending on the error page, + + + Advanced… on the error page + to view the error code. One of the following error codes will indicate + that the secure connection couldn't be established due to a + time-related error: +

+ Note: If you get a + Your connection is not secure error page, click the + Advanced button to view the error code and + other details. A Secure Connection Failed error page may also + indicate a time-related error. +

+ One of the following error codes will indicate that the secure + connection couldn't be established due to a time-related error: +

+ _{SEC_ERROR_EXPIRED_CERTIFICATE}
+ _{SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE}
+ _{SEC_ERROR_OCSP_FUTURE_RESPONSE}
+ _{SEC_ERROR_OCSP_OLD_RESPONSE}
+ _{MOZILLA_PKIX_ERROR_NOT_YET_VALID_CERTIFICATE}
+ _{MOZILLA_PKIX_ERROR_NOT_YET_VALID_ISSUER_CERTIFICATE} +

+ The text on the error page will warn you when Firefox detects that your + system date and time is probably wrong and will also show the date and + time currently set in your system. If the clock settings are incorrect + you should set it to the right time + as explained below. Even if the displayed time settings seem to be correct, you should + make sure that the time zone settings of your system match your current + location. +

+ Set your system clock to the correct time +

+ Time-related errors on secure websites caused by a skewed system clock + can be resolved by setting your correct date, time and time zone:. + + Change your date and time settings from the clock on the Windows + taskbar or follow these instructions: +

If your are on Windows 10:

+ Click the Windows Start button or press the Windows key. +
In the Start menu, selectSettings.
+ In Settings, selectTime & language. +
+ In theDate & time section you can + review the current date and time settings. To change your settings + click on Change below + Change date and time or expand the + Time zone dropdown menu. +
+ If your system is set to manage the time and time zone + automatically, you cannot make manual changes. +
+
If you are done with your changes, close the Settings window.

If your are on Windows 8:

+ From the Start Screen, click the Desktop tile. The + Desktop view will open. +
+ From the Desktop, hover in the lower right-hand corner to access the + Charms. +
+ Select Control Panel from the + Settings charm. The Control Panel window + will open. +
+
+
+
+ In the Control Panel window, click on + Clock, Language, and Region and then + Date and Time. +
+ The panel that opens shows the current date and time settings. To + change your settings click the + Change date and time or + Change time zone button. +
To confirm your changes click OK.

If your are on Windows 7:

+ Click the Windows Start button or press the Windows key + . +
+ In the Start Menu, click Control Panel. +
+
+
+
+ In the Control Panel window, click on + Clock, Language, and Region and then + Date and Time. +
+ The panel that opens shows the current date and time settings. To + change your settings click the + Change date and time or + Change time zone button. +
To confirm your changes click OK.

If your are on Mac OS:

+ Click the Apple menu and select + System Preferences. +
+ In the System Preferences window, click on + Date & Time. +
+ The panel that opens shows the current date and time settings. In + order to adjust them, disable + Set date and time automatically, manually + enter the date and time and click + Save to confirm your changes. +
+ In order to review your time zone settings, click on the + Time Zone tab. In order to adjust your time zone, + disable + Set time zone automatically using current location, click onto your approximate location in the map and select the + city closest to you in the dropdown panel. +
+ If you are done with your changes, close the Date & Time window. +

+ Note: If the clock on your device constantly resets + after you power it off, this might indicate that the battery cell that + runs the real-time clock is getting low or is empty. Please consult your + manufacturer's manual on how to replace the CMOS battery. +

Contact the website owner

+ If you get a time related error on a secure website and you have already + checked the correct settings of your system’s clock, please contact the + owner of the website which you can’t access and inform them of the + problem. The website owner might need to renew the expired certificate, + for example. +

Bypass the warning

+ Warning: You should never bypass the warning for a + legitimate major website or sites where financial transactions take + place – in this case an invalid certificate can indicate that your + connection is compromised by a third party. +

+ If you see a Your connection is not secure warning page and + the website allows it, you can add an exception to be able to visit + the site, despite the fact that the certificate is not trusted by + default: +

+ On the warning page, click Advanced. +
+ Click Add Exception…. The + Add Security Exception dialog will appear. +
+ Read the text describing the problems with the website. You can + click View… + to closer inspect the untrusted certificate. +
+ Click Confirm Security Exception if you + are sure you want to trust the site. +