The Server's Security Certificate Is Not Yet Valid in Google Chrome is message that shows you can not visit intended webpage due to certificate error, ranging from invalid to expired certification.
If you have this warning message comes up when trying to visit any websites there is quick solution. Before going about anything to resolve the issue try to read the information displayed below the warning heading first.
STEP 1: Read the message displayed by Google Chrome on how to forestall the problem carefully from the warning page.
STEP 2: Right-click on 'Date and Time' on your system-tray.
STEP 3: Select and click 'Adjust date/time' to continue.
STEP 4: At 'Date and Time dialogue' click 'Change date and time...'.
STEP 5: From the 'Date and Time Settings' correct the time and date to the current ones.
STEP 6: Restart your Google Chrome and visit the particular site you intended to see.