NET::ERR_CERT_DATE_INVALID - it's interesting as it's May 3rd and the cert seems valid until May 3rd as well?
Check System Date and Time
Disable Antivirus SSL Connection
Clear Cookies and Cached Files
Reset Chrome Browser
Open Chrome in Incognito Mode
Expired SSL Certificates
Update Chrome Browser
http://net-informations.com/q/mis/ssl.html