diff --git a/moto/ec2/models.py b/moto/ec2/models.py
old mode 100644
new mode 100755
index 20ad64fa9..e65d7fd44
--- a/moto/ec2/models.py
+++ b/moto/ec2/models.py
@@ -911,6 +911,7 @@ class Ami(TaggedEC2Resource):
         self.architecture = None
         self.kernel_id = None
         self.platform = None
+        self.creation_date = datetime.utcnow().isoformat()
 
         if instance:
             self.instance = instance
diff --git a/moto/ec2/responses/amis.py b/moto/ec2/responses/amis.py
old mode 100644
new mode 100755
index aecf55292..42649fd38
--- a/moto/ec2/responses/amis.py
+++ b/moto/ec2/responses/amis.py
@@ -90,6 +90,7 @@ DESCRIBE_IMAGES_RESPONSE = """<DescribeImagesResponse xmlns="http://ec2.amazonaw
           <kernelId>{{ image.kernel_id }}</kernelId>
           <ramdiskId>ari-1a2b3c4d</ramdiskId>
           <imageOwnerAlias>amazon</imageOwnerAlias>
+          <creationDate>{{ image.creation_date }}</creationDate>
           <name>{{ image.name }}</name>
           {% if image.platform %}
              <platform>{{ image.platform }}</platform>
diff --git a/tests/test_ec2/test_amis.py b/tests/test_ec2/test_amis.py
old mode 100644
new mode 100755
index aa921f149..411f80a49
--- a/tests/test_ec2/test_amis.py
+++ b/tests/test_ec2/test_amis.py
@@ -28,6 +28,7 @@ def test_ami_create_and_delete():
     image.architecture.should.equal(instance.architecture)
     image.kernel_id.should.equal(instance.kernel)
     image.platform.should.equal(instance.platform)
+    image.creationDate.should_not.be.none
     instance.terminate()
 
     # Validate auto-created volume and snapshot