diff --git a/zun/db/sqlalchemy/alembic/versions/271c7f45982d_add_started_at_to_container.py b/zun/db/sqlalchemy/alembic/versions/271c7f45982d_add_started_at_to_container.py
new file mode 100644
index 000000000..9024b4bed
--- /dev/null
+++ b/zun/db/sqlalchemy/alembic/versions/271c7f45982d_add_started_at_to_container.py
@@ -0,0 +1,34 @@
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""add started_at to containers
+
+Revision ID: 271c7f45982d
+Revises: cff60402dd86
+Create Date: 2018-05-03 11:27:00.722445
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '271c7f45982d'
+down_revision = 'cff60402dd86'
+branch_labels = None
+depends_on = None
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.add_column('container',
+                  sa.Column('started_at', sa.DateTime(),
+                            nullable=True))
diff --git a/zun/db/sqlalchemy/models.py b/zun/db/sqlalchemy/models.py
index b3f21ad7d..e66182529 100644
--- a/zun/db/sqlalchemy/models.py
+++ b/zun/db/sqlalchemy/models.py
@@ -169,6 +169,7 @@ class Container(Base):
     auto_heal = Column(Boolean, default=False)
     capsule_id = Column(Integer,
                         ForeignKey('capsule.id', ondelete='CASCADE'))
+    started_at = Column(DateTime, default=timeutils.utcnow)
 
 
 class VolumeMapping(Base):
diff --git a/zun/objects/container.py b/zun/objects/container.py
index 01027aae7..774fa0855 100644
--- a/zun/objects/container.py
+++ b/zun/objects/container.py
@@ -59,7 +59,8 @@ class Container(base.ZunPersistentObject, base.ZunObject):
     # Version 1.28: Add 'Dead' to ContainerStatus
     # Version 1.29: Add 'Restarting' to ContainerStatus
     # Version 1.30: Add capsule_id attribute
-    VERSION = '1.30'
+    # Version 1.31: Add 'started_at' attribute
+    VERSION = '1.31'
 
     fields = {
         'id': fields.IntegerField(),
@@ -98,6 +99,7 @@ class Container(base.ZunPersistentObject, base.ZunObject):
         'disk': fields.IntegerField(nullable=True),
         'auto_heal': fields.BooleanField(nullable=True),
         'capsule_id': fields.IntegerField(nullable=True),
+        'started_at': fields.DateTimeField(nullable=True),
     }
 
     @staticmethod
diff --git a/zun/tests/unit/db/utils.py b/zun/tests/unit/db/utils.py
index de935b9fb..f7c3a9693 100644
--- a/zun/tests/unit/db/utils.py
+++ b/zun/tests/unit/db/utils.py
@@ -101,6 +101,7 @@ def get_test_container(**kwargs):
         'disk': kwargs.get('disk', 20),
         'auto_heal': kwargs.get('auto_heal', False),
         'capsule_id': kwargs.get('capsule_id', 42),
+        'started_at': kwargs.get('started_at'),
     }
 
 
diff --git a/zun/tests/unit/objects/test_objects.py b/zun/tests/unit/objects/test_objects.py
index a23f94794..1e16fdd7a 100644
--- a/zun/tests/unit/objects/test_objects.py
+++ b/zun/tests/unit/objects/test_objects.py
@@ -344,7 +344,7 @@ class TestObject(test_base.TestCase, _TestObject):
 # For more information on object version testing, read
 # https://docs.openstack.org/zun/latest/
 object_data = {
-    'Container': '1.30-fc17da52173f258245d424c9a5cf99c7',
+    'Container': '1.31-4e1f27e1326bc42c7fa7ca0681bbe883',
     'VolumeMapping': '1.1-50df6202f7846a136a91444c38eba841',
     'Image': '1.1-330e6205c80b99b59717e1cfc6a79935',
     'MyObj': '1.0-34c4b1aadefd177b13f9a2f894cc23cd',