Windows Azure Storage certificate expired?(social.msdn.microsoft.com)

  currentDateEpoch=$(date +%s)
  expirationDate=$(openssl x509 -in $my_cert -enddate -noout | sed 's/notAfter=//' | date -f -)
  expirationDateEpoch=$(date -d "$expirationDate" +%s)
  diff=$((expirationDateEpoch - currentDateEpoch))
  
  * 24 * 3600))
  * 24 * 3600))
  
  if [ "$diff" -lt $oneWeekInSeconds ]; then
    printf "Certificate $my_cert needs to be renewed! Expires on $(date -d "$expirationDate" +"%B %_d, %Y")\n" >&2
    exit 3
  fi
  
  if [ "$diff" -lt $oneMonthInSeconds ]; then
    printf "Certificate $my_cert expires in less than a month! Expires on $(date -d "$expirationDate" +"%B %_d, %Y")\n" >&2
  else
    printf "Note: certificate $my_cert expires on $(date -d "$expirationDate" +"%B %_d, %Y")\n" >&2
  fi

  http://checkmyssl.com/
  https://sslcheck.globalsign.com/en_US

  https://www.sslshopper.com/ssl-checker
  http://www.serverexec.com/ (does domain expiration too)

  http://www.prefetch.net/articles/checkcertificate.html