diff --git a/README.md b/README.md
index d45632c2..6185ee75 100644
--- a/README.md
+++ b/README.md
@@ -122,7 +122,7 @@ Use `readCertificateInfo` for reading subject data from a certificate or a CSR
 Where
 
   * **certificate** is a PEM encoded CSR or a certificate
-  * **callback** is a callback function with an error object and `{country, state, locality, organization, organizationUnit, commonName, emailAddress}`
+  * **callback** is a callback function with an error object and `{country, state, locality, organization, organizationUnit, commonName, emailAddress, validity{start, end} }`
 
 ### Get fingerprint
 
diff --git a/lib/pem.js b/lib/pem.js
index 2e62b3d4..774588bb 100644
--- a/lib/pem.js
+++ b/lib/pem.js
@@ -329,6 +329,7 @@ function fetchCertificateData(certData, callback){
     certData = (certData || "").toString();
 
     var subject, extra, tmp, certValues = {};
+    var validity = {};
 
     if((subject = certData.match(/Subject:([^\n]*)\n/)) && subject.length>1){
         subject = subject[1];
@@ -358,6 +359,13 @@ function fetchCertificateData(certData, callback){
         tmp = extra.match(/emailAddress=([^,\n\/].*?)[,\n\/]/);
         certValues.emailAddress = tmp && tmp[1] || "";
     }
+    if ((tmp = certData.match(/Not Before\s?:\s?([^\n]*)\n/)) && tmp.length>1)
+       validity.start = Date.parse(tmp && tmp[1] || "");
+    if ((tmp = certData.match(/Not After\s?:\s?([^\n]*)\n/)) && tmp.length>1)
+       validity.end = Date.parse(tmp && tmp[1] || "");
+    if (validity.start && validity.end)
+       certValues.validity = validity;
+
     callback(null, certValues);
 }
 
diff --git a/test/pem.js b/test/pem.js
index f1dc7e04..80a3689f 100644
--- a/test/pem.js
+++ b/test/pem.js
@@ -145,6 +145,8 @@ exports["General Tests"] = {
 
             pem.readCertificateInfo(certificate, function(error, data){
                 test.ifError(error);
+                if(data.validity)
+                    delete data.validity;
                 test.deepEqual(data,{
                     country: '',
                     state: '',
@@ -172,6 +174,8 @@ exports["General Tests"] = {
 
             pem.readCertificateInfo(certificate, function(error, data){
                 test.ifError(error);
+                if(data.validity)
+                    delete data.validity;
                 test.deepEqual(data, certInfo);
                 test.done();
             });