diff --git a/yaltik_crm_action/__manifest__.py b/yaltik_crm_action/__manifest__.py
index 201ec7a..ba28fe8 100644
--- a/yaltik_crm_action/__manifest__.py
+++ b/yaltik_crm_action/__manifest__.py
@@ -18,7 +18,7 @@
 {
     'name': 'CRM Actions',
     'summary': 'Action management, instead of new activity, in CRM',
-    'version': '10.0.1.0.0',
+    'version': '10.0.1.1.0',
     'category': 'Sales',
     'author': 'Fabien BOURGEOIS - Yaltik',
     'license': 'AGPL-3',
diff --git a/yaltik_crm_action/migrations/10.0.1.1.0/post-migrate.py b/yaltik_crm_action/migrations/10.0.1.1.0/post-migrate.py
new file mode 100644
index 0000000..54def73
--- /dev/null
+++ b/yaltik_crm_action/migrations/10.0.1.1.0/post-migrate.py
@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+
+#    Copyright 2017 Fabien Bourgeois <fabien@yaltik.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+""" Migration script """
+
+from openupgradelib import openupgrade
+
+@openupgrade.migrate(use_env=True)
+def migrate(env, version):
+    """ Migration function : migrate Date date to datetime """
+    openupgrade.date_to_datetime_tz(env.cr, 'crm_action', 'user_id',
+                                    'date_bak', 'date')
+    openupgrade.drop_columns(env.cr, [('crm_action', 'date_bak')])
diff --git a/yaltik_crm_action/migrations/10.0.1.1.0/pre-migrate.py b/yaltik_crm_action/migrations/10.0.1.1.0/pre-migrate.py
new file mode 100644
index 0000000..88e0d90
--- /dev/null
+++ b/yaltik_crm_action/migrations/10.0.1.1.0/pre-migrate.py
@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+
+#    Copyright 2017 Fabien Bourgeois <fabien@yaltik.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+""" Migration script """
+
+from openupgradelib import openupgrade
+
+@openupgrade.migrate()
+def migrate(env, version):
+    """ Migration function : copy old Date date to legacy column """
+    openupgrade.copy_columns(env.cr, {'crm_action': [('date', 'date_bak', None)]})
diff --git a/yaltik_crm_action/models/crm_action.py b/yaltik_crm_action/models/crm_action.py
index bcc9c70..7ba2115 100644
--- a/yaltik_crm_action/models/crm_action.py
+++ b/yaltik_crm_action/models/crm_action.py
@@ -39,13 +39,14 @@ class CrmAction(models.Model):
     details = fields.Text()
 
     partner_id = fields.Many2one('res.partner', string='Customer', index=True)
-    date = fields.Date('Date', required=True, default=fields.Date.context_today)
+    date = fields.Datetime('Date', required=True, default=fields.Date.context_today)
     user_id = fields.Many2one('res.users', string='User', required=True,
                               default=lambda self: self.env.user)
     lead_id = fields.Many2one('crm.lead', string='Lead', ondelete='cascade')
     event_id = fields.Many2one('calendar.event', 'Calendar event', ondelete='cascade')
-    action_type_id = fields.Many2one('crm.action.type', string='Type', required=True,
-                                     default=lambda self: self.env['crm.action.type'].search([], limit=1))
+    action_type_id = fields.Many2one(
+        'crm.action.type', string='Type', required=True,
+        default=lambda self: self.env['crm.action.type'].search([], limit=1))
     action_type_name = fields.Char(related='action_type_id.name')
 
     @api.onchange('lead_id')
diff --git a/yaltik_crm_action/models/crm_lead.py b/yaltik_crm_action/models/crm_lead.py
index 45c0911..0944b65 100644
--- a/yaltik_crm_action/models/crm_lead.py
+++ b/yaltik_crm_action/models/crm_lead.py
@@ -29,7 +29,7 @@ class CrmLead(models.Model):
     action_ids = fields.One2many('crm.action', 'lead_id', string='Actions')
     next_action_id = fields.Many2one('crm.action', string='Next Action',
                                      compute='compute_next_action', store=True)
-    next_action_date = fields.Date(related='next_action_id.date', store=True)
+    next_action_date = fields.Datetime(related='next_action_id.date', store=True)
     next_action_title = fields.Char(related='next_action_id.display_name', store=True)
 
     @api.multi