diff --git a/SunSpider/date-format-tofte.js b/SunSpider/date-format-tofte.js
index b2b1f816..4c4f22de 100644
--- a/SunSpider/date-format-tofte.js
+++ b/SunSpider/date-format-tofte.js
@@ -59,7 +59,7 @@ Date.prototype.formatDate = function (input,time) {
         
         d() {
             // Day of the month, 2 digits with leading zeros
-            return new String(self.getDate()).length == 1?
+            return String(self.getDate()).length == 1?
             "0"+self.getDate() : self.getDate();
         },
 
@@ -86,11 +86,11 @@ Date.prototype.formatDate = function (input,time) {
         h() {
             // 12-hour format of an hour with leading zeros
             if (self.getHours() > 12) {
-            var s = new String(self.getHours()-12);
+            var s = String(self.getHours()-12);
             return s.length == 1?
             "0"+ (self.getHours()-12) : self.getHours()-12;
             } else { 
-            var s = new String(self.getHours());
+            var s = String(self.getHours());
             return s.length == 1?
             "0"+self.getHours() : self.getHours();
             }
@@ -98,13 +98,13 @@ Date.prototype.formatDate = function (input,time) {
 
         H() {
             // 24-hour format of an hour with leading zeros
-            return new String(self.getHours()).length == 1?
+            return String(self.getHours()).length == 1?
             "0"+self.getHours() : self.getHours();
         },
 
         i() {
             // Minutes with leading zeros
-            return new String(self.getMinutes()).length == 1? 
+            return String(self.getMinutes()).length == 1? 
             "0"+self.getMinutes() : self.getMinutes(); 
         },
 
@@ -176,7 +176,7 @@ Date.prototype.formatDate = function (input,time) {
 
         s() {
             // Seconds, with leading zeros
-            return new String(self.getSeconds()).length == 1?
+            return String(self.getSeconds()).length == 1?
             "0"+self.getSeconds() : self.getSeconds();
         },
 
diff --git a/SunSpider/date-format-xparb.js b/SunSpider/date-format-xparb.js
index 83cc6af2..f5e54539 100644
--- a/SunSpider/date-format-xparb.js
+++ b/SunSpider/date-format-xparb.js
@@ -349,7 +349,7 @@ String.escape = function(string) {
 }
 
 String.leftPad = function (val, size, ch) {
-    var result = new String(val);
+    var result = String(val);
     if (ch == null) {
         ch = " ";
     }
diff --git a/worker/bomb-subtests/date-format-tofte.js b/worker/bomb-subtests/date-format-tofte.js
index 6c2077c2..441b4c95 100644
--- a/worker/bomb-subtests/date-format-tofte.js
+++ b/worker/bomb-subtests/date-format-tofte.js
@@ -69,7 +69,7 @@ Date.prototype.formatDate = function (input,time) {
     
     function d() {
         // Day of the month, 2 digits with leading zeros
-        return new String(self.getDate()).length == 1?
+        return String(self.getDate()).length == 1?
         "0"+self.getDate() : self.getDate();
     }
     function D() {
@@ -91,23 +91,23 @@ Date.prototype.formatDate = function (input,time) {
     function h() {
         // 12-hour format of an hour with leading zeros
         if (self.getHours() > 12) {
-          var s = new String(self.getHours()-12);
+          var s = String(self.getHours()-12);
           return s.length == 1?
           "0"+ (self.getHours()-12) : self.getHours()-12;
         } else { 
-          var s = new String(self.getHours());
+          var s = String(self.getHours());
           return s.length == 1?
           "0"+self.getHours() : self.getHours();
         }  
     }
     function H() {
         // 24-hour format of an hour with leading zeros
-        return new String(self.getHours()).length == 1?
+        return String(self.getHours()).length == 1?
         "0"+self.getHours() : self.getHours();
     }
     function i() {
         // Minutes with leading zeros
-        return new String(self.getMinutes()).length == 1? 
+        return String(self.getMinutes()).length == 1?
         "0"+self.getMinutes() : self.getMinutes(); 
     }
     function j() {
@@ -169,7 +169,7 @@ Date.prototype.formatDate = function (input,time) {
     }
     function s() {
         // Seconds, with leading zeros
-        return new String(self.getSeconds()).length == 1?
+        return String(self.getSeconds()).length == 1?
         "0"+self.getSeconds() : self.getSeconds();
     }
     function t() {
diff --git a/worker/bomb-subtests/date-format-xparb.js b/worker/bomb-subtests/date-format-xparb.js
index 3bf82102..ec0d7edc 100644
--- a/worker/bomb-subtests/date-format-xparb.js
+++ b/worker/bomb-subtests/date-format-xparb.js
@@ -349,7 +349,7 @@ String.escape = function(string) {
 }
 
 String.leftPad = function (val, size, ch) {
-    var result = new String(val);
+    var result = String(val);
     if (ch == null) {
         ch = " ";
     }