diff --git a/moto/kms/models.py b/moto/kms/models.py
index b49e9dd09..2d6245ad2 100644
--- a/moto/kms/models.py
+++ b/moto/kms/models.py
@@ -3,7 +3,7 @@ from __future__ import unicode_literals
 import os
 import boto.kms
 from moto.core import BaseBackend, BaseModel
-from moto.core.utils import iso_8601_datetime_without_milliseconds
+from moto.core.utils import iso_8601_datetime_without_milliseconds, unix_time
 from .utils import generate_key_id
 from collections import defaultdict
 from datetime import datetime, timedelta
@@ -37,7 +37,7 @@ class Key(BaseModel):
             "KeyMetadata": {
                 "AWSAccountId": self.account_id,
                 "Arn": self.arn,
-                "CreationDate": datetime.strftime(datetime.utcnow(), "%s"),
+                "CreationDate": "%d" % unix_time(),
                 "Description": self.description,
                 "Enabled": self.enabled,
                 "KeyId": self.id,
diff --git a/tests/test_kms/test_kms.py b/tests/test_kms/test_kms.py
index e7ce9f74b..f0d77d3e9 100644
--- a/tests/test_kms/test_kms.py
+++ b/tests/test_kms/test_kms.py
@@ -18,13 +18,14 @@ from dateutil.tz import tzutc
 @mock_kms_deprecated
 def test_create_key():
     conn = boto.kms.connect_to_region("us-west-2")
+    with freeze_time("2015-01-01 00:00:00"):
+        key = conn.create_key(policy="my policy",
+                            description="my key", key_usage='ENCRYPT_DECRYPT')
 
-    key = conn.create_key(policy="my policy",
-                          description="my key", key_usage='ENCRYPT_DECRYPT')
-
-    key['KeyMetadata']['Description'].should.equal("my key")
-    key['KeyMetadata']['KeyUsage'].should.equal("ENCRYPT_DECRYPT")
-    key['KeyMetadata']['Enabled'].should.equal(True)
+        key['KeyMetadata']['Description'].should.equal("my key")
+        key['KeyMetadata']['KeyUsage'].should.equal("ENCRYPT_DECRYPT")
+        key['KeyMetadata']['Enabled'].should.equal(True)
+        key['KeyMetadata']['CreationDate'].should.equal("1420070400")
 
 
 @mock_kms_deprecated
@@ -980,5 +981,3 @@ def test_put_key_policy_key_not_found():
             PolicyName='default',
             Policy='new policy'
         )
-
-