diff --git a/config/shared_test.go b/config/shared_test.go
index ecadcbcbf52..b0ee123a161 100644
--- a/config/shared_test.go
+++ b/config/shared_test.go
@@ -14,7 +14,7 @@ const ecsResponse = `{
   "SecretAccessKey": "ecs-secret-key",
   "Token": "token",
   "Expiration": "2100-01-01T00:00:00Z",
-  "LastUpdated": "2009-11-23T0:00:00Z"
+  "LastUpdated": "2009-11-23T00:00:00Z"
 }`
 
 const ec2MetadataResponse = `{
@@ -24,7 +24,7 @@ const ec2MetadataResponse = `{
   "SecretAccessKey": "ec2-secret-key",
   "Token": "token",
   "Expiration": "2100-01-01T00:00:00Z",
-  "LastUpdated": "2009-11-23T0:00:00Z"
+  "LastUpdated": "2009-11-23T00:00:00Z"
 }`
 
 const assumeRoleRespMsg = `
diff --git a/credentials/ec2rolecreds/provider_test.go b/credentials/ec2rolecreds/provider_test.go
index 31be7d6e365..362b0b75365 100644
--- a/credentials/ec2rolecreds/provider_test.go
+++ b/credentials/ec2rolecreds/provider_test.go
@@ -28,13 +28,13 @@ const credsRespTmpl = `{
   "SecretAccessKey" : "secret",
   "Token" : "token",
   "Expiration" : "%s",
-  "LastUpdated" : "2009-11-23T0:00:00Z"
+  "LastUpdated" : "2009-11-23T00:00:00Z"
 }`
 
 const credsFailRespTmpl = `{
   "Code": "ErrorCode",
   "Message": "ErrorMsg",
-  "LastUpdated": "2009-11-23T0:00:00Z"
+  "LastUpdated": "2009-11-23T00:00:00Z"
 }`
 
 type mockClient struct {