diff --git a/addons/crm/models/crm_lead.py b/addons/crm/models/crm_lead.py
index cf57d385ce2..2a4f460a4b5 100644
--- a/addons/crm/models/crm_lead.py
+++ b/addons/crm/models/crm_lead.py
@@ -316,7 +316,7 @@ class Lead(models.Model):
     @api.depends('user_id')
     def _compute_date_open(self):
         for lead in self:
-            lead.date_open = fields.Datetime.now() if lead.user_id else False
+            lead.date_open = self.env.cr.now() if lead.user_id else False
 
     @api.depends('stage_id')
     def _compute_date_last_stage_update(self):
@@ -852,7 +852,7 @@ class Lead(models.Model):
         context.setdefault('default_team_id', self.team_id.id)
         # Set date_open to today if it is an opp
         default = default or {}
-        default['date_open'] = fields.Datetime.now() if self.type == 'opportunity' else False
+        default['date_open'] = self.env.cr.now() if self.type == 'opportunity' else False
         # Do not assign to an archived user
         if not self.user_id.active:
             default['user_id'] = False
diff --git a/addons/crm/tests/test_crm_lead_convert.py b/addons/crm/tests/test_crm_lead_convert.py
index 52f41b83877..e544f5a8611 100644
--- a/addons/crm/tests/test_crm_lead_convert.py
+++ b/addons/crm/tests/test_crm_lead_convert.py
@@ -492,8 +492,7 @@ class TestLeadConvertBatch(crm_common.TestLeadConvertMassCommon):
     @users('user_sales_manager')
     def test_lead_convert_batch_internals(self):
         """ Test internals of convert wizard, working in batch mode """
-        date = Datetime.from_string('2020-01-20 16:00:00')
-        self.crm_lead_dt_mock.now.return_value = date
+        date = self.env.cr.now()
 
         lead_w_partner = self.lead_w_partner
         lead_w_contact = self.lead_w_contact