diff --git a/addons/event/models/event_mail.py b/addons/event/models/event_mail.py
index 9e0132f0fdd..2272f030c33 100644
--- a/addons/event/models/event_mail.py
+++ b/addons/event/models/event_mail.py
@@ -288,8 +288,6 @@ class EventMailRegistration(models.Model):
     def _compute_scheduled_date(self):
         for mail in self:
             if mail.registration_id:
-                date_open = mail.registration_id.date_open
-                date_open_datetime = date_open or fields.Datetime.now()
-                mail.scheduled_date = date_open_datetime + _INTERVALS[mail.scheduler_id.interval_unit](mail.scheduler_id.interval_nbr)
+                mail.scheduled_date = mail.registration_id.create_date + _INTERVALS[mail.scheduler_id.interval_unit](mail.scheduler_id.interval_nbr)
             else:
                 mail.scheduled_date = False
diff --git a/addons/event/models/event_registration.py b/addons/event/models/event_registration.py
index 081391d0625..73e7bc689ea 100644
--- a/addons/event/models/event_registration.py
+++ b/addons/event/models/event_registration.py
@@ -37,7 +37,6 @@ class EventRegistration(models.Model):
     phone = fields.Char(string='Phone', compute='_compute_phone', readonly=False, store=True, tracking=12)
     mobile = fields.Char(string='Mobile', compute='_compute_mobile', readonly=False, store=True, tracking=13)
     # organization
-    date_open = fields.Datetime(string='Registration Date', readonly=True, default=lambda self: fields.Datetime.now())  # weird crash is directly now
     date_closed = fields.Datetime(
         string='Attended Date', compute='_compute_date_closed',
         readonly=False, store=True)
diff --git a/addons/event/tests/common.py b/addons/event/tests/common.py
index 47bd7584096..c3c32a9880a 100644
--- a/addons/event/tests/common.py
+++ b/addons/event/tests/common.py
@@ -102,7 +102,9 @@ class TestEventCommon(common.TransactionCase):
     @classmethod
     def _create_registrations(cls, event, reg_count):
         # create some registrations
+        create_date = fields.Datetime.now()
         registrations = cls.env['event.registration'].create([{
+            'create_date': create_date,
             'event_id': event.id,
             'name': 'Test Registration %s' % x,
             'email': '_test_reg_%s@example.com' % x,
diff --git a/addons/event/tests/test_event_mail_schedule.py b/addons/event/tests/test_event_mail_schedule.py
index 87ce2b33afd..85f639648d2 100644
--- a/addons/event/tests/test_event_mail_schedule.py
+++ b/addons/event/tests/test_event_mail_schedule.py
@@ -89,12 +89,14 @@ class TestMailSchedule(TestEventCommon, MockEmail):
 
         # create some registrations
         with freeze_time(now), self.mock_mail_gateway():
-            reg1 = self.env['event.registration'].with_user(self.user_eventuser).create({
+            reg1 = self.env['event.registration'].create({
+                'create_date': now,
                 'event_id': test_event.id,
                 'name': 'Reg1',
                 'email': 'reg1@example.com',
             })
-            reg2 = self.env['event.registration'].with_user(self.user_eventuser).create({
+            reg2 = self.env['event.registration'].create({
+                'create_date': now,
                 'event_id': test_event.id,
                 'name': 'Reg2',
                 'email': 'reg2@example.com',
@@ -105,7 +107,7 @@ class TestMailSchedule(TestEventCommon, MockEmail):
 
         # check registration state
         self.assertTrue(all(reg.state == 'open' for reg in reg1 + reg2), 'Registrations: should be auto-confirmed')
-        self.assertTrue(all(reg.date_open == now for reg in reg1 + reg2), 'Registrations: should have open date set to confirm date')
+        self.assertTrue(all(reg.create_date == now for reg in reg1 + reg2), 'Registrations: should have open date set to confirm date')
 
         # verify that subscription scheduler was auto-executed after each registration
         self.assertEqual(len(after_sub_scheduler.mail_registration_ids), 2, 'event: should have 2 scheduled communication (1 / registration)')
@@ -204,7 +206,8 @@ class TestMailSchedule(TestEventCommon, MockEmail):
 
         test_event.write({'auto_confirm': False})
         with freeze_time(now_start), self.mock_mail_gateway():
-            reg3 = self.env['event.registration'].with_user(self.user_eventuser).create({
+            reg3 = self.env['event.registration'].create({
+                'create_date': now_start,
                 'event_id': test_event.id,
                 'name': 'Reg3',
                 'email': 'reg3@example.com',
@@ -220,7 +223,7 @@ class TestMailSchedule(TestEventCommon, MockEmail):
         self.assertTrue(after_sub_scheduler_2.mail_done, 'event: scheduler on registration not updated next to draft registration')
 
         # confirm registration -> should trigger registration schedulers
-        # NOTE: currently all schedulers are based on date_open which equals create_date
+        # NOTE: currently all schedulers are based on create_date
         # meaning several communications may be sent in the time time
         with freeze_time(now_start + relativedelta(hours=1)), self.mock_mail_gateway():
             reg3.action_confirm()
diff --git a/addons/event/views/event_views.xml b/addons/event/views/event_views.xml
index 0897e83e097..cd0d9c120d3 100644
--- a/addons/event/views/event_views.xml
+++ b/addons/event/views/event_views.xml
@@ -503,7 +503,6 @@
                       expand="1" default_order="create_date desc"
                       class="o_event_registration_view_tree">
                     <field name="create_date" optional="show" string="Registration Date"/>
-                    <field name="date_open" optional="hide"/>
                     <field name="name"/>
                     <field name="partner_id" optional="hide"/>
                     <field name="email" optional="show"/>
@@ -554,7 +553,7 @@
                                     ]"
                                     attrs="{'invisible': [('event_id', '=', False)]}"
                                     options="{'no_open': True, 'no_create': True}"/>
-                                <field name="date_open" groups="base.group_no_one"/>
+                                <field name="create_date" string="Registration Date" groups="base.group_no_one"/>
                                 <field name="date_closed" groups="base.group_no_one"/>
                             </group>
                             <group string="Marketing" name="utm_link" groups="base.group_no_one">
@@ -692,7 +691,7 @@
                     <filter string="Confirmed" name="confirmed" domain="[('state', '=', 'open')]"/>
                     <filter string="Attended" name="attended" domain="[('state', '=', 'done')]"/>
                     <separator/>
-                    <filter string="Registration Date" name="filter_date_open" date="date_open"/>
+                    <filter string="Registration Date" name="filter_create_date" date="create_date"/>
                     <filter string="Event Start Date" name="filter_event_begin_date" date="event_begin_date"/>
                     <filter string="Attended Date" name="filter_date_closed" date="date_closed"/>
                     <field name="event_id"/>