diff --git a/addons/hr_holidays/populate/hr_leave.py b/addons/hr_holidays/populate/hr_leave.py
index a26d1146854..933c8438838 100644
--- a/addons/hr_holidays/populate/hr_leave.py
+++ b/addons/hr_holidays/populate/hr_leave.py
@@ -2,7 +2,6 @@
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
 import datetime
-import random
 
 from odoo import models
 from odoo.tools import populate
@@ -45,27 +44,22 @@ class HolidaysRequest(models.Model):
         employee_by_company = {k: list(v) for k, v in groupby(employee_records, key=lambda rec: rec['company_id'].id)}
         company_by_type = {rec.id: rec.company_id.id for rec in self.env['hr.leave.type'].browse(hr_leave_type_ids)}
 
-
         def compute_employee_id(random=None, values=None, **kwargs):
             company_id = company_by_type[values['holiday_status_id']]
             return random.choice(employee_by_company[company_id]).id
 
-        def compute_date_from(counter, **kwargs):
-            date_from = datetime.datetime.now().replace(hour=0, minute=0, second=0)\
-                + relativedelta(days=int(3 * int(counter)))
-            return date_from
+        def compute_request_date_from(counter, **kwargs):
+            return datetime.datetime.today() + relativedelta(days=int(3 * int(counter)))
 
-        def compute_date_to(counter, **kwargs):
-            date_to = datetime.datetime.now().replace(hour=23, minute=59, second=59)\
-                + relativedelta(days=int(3 * int(counter))  + random.randint(0, 2))
-            return date_to
+        def compute_request_date_to(counter, random=None, **kwargs):
+            return datetime.datetime.today() + relativedelta(days=int(3 * int(counter)) + random.randint(0, 2))
 
         return [
             ('holiday_status_id', populate.randomize(allocationless_leave_type_ids)),
             ('employee_id', populate.compute(compute_employee_id)),
             ('holiday_type', populate.constant('employee')),
-            ('date_from', populate.compute(compute_date_from)),
-            ('date_to', populate.compute(compute_date_to)),
+            ('request_date_from', populate.compute(compute_request_date_from)),
+            ('request_date_to', populate.compute(compute_request_date_to)),
             ('state', populate.randomize([
                 'draft',
                 'confirm',
diff --git a/addons/resource/populate/resource_calendar.py b/addons/resource/populate/resource_calendar.py
index 0eea78ff840..bb62d14bc8b 100644
--- a/addons/resource/populate/resource_calendar.py
+++ b/addons/resource/populate/resource_calendar.py
@@ -1,7 +1,5 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
-import random
-
 from odoo import models
 from odoo.tools import populate
 
@@ -25,6 +23,7 @@ class ResourceCalendar(models.Model):
 
     def _populate(self, size):
         records = super()._populate(size)
+        random = populate.Random('calendar')
 
         # Randomly remove 1 half day from schedule
         a_lot = records.filtered_domain([("name", "like", "A lot")])
diff --git a/addons/website_slides/populate/slide_channel_partner.py b/addons/website_slides/populate/slide_channel_partner.py
index 87f13d3beeb..7ce07f73a78 100644
--- a/addons/website_slides/populate/slide_channel_partner.py
+++ b/addons/website_slides/populate/slide_channel_partner.py
@@ -1,6 +1,5 @@
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
-import random
 from collections import defaultdict
 
 from odoo import models
@@ -14,6 +13,7 @@ class SlideChannelPartner(models.Model):
     _populate_sizes = {'small': 150, 'medium': 3_000, 'large': 150_000}
 
     def _populate_factories(self):
+        random = populate.Random('slidechannelpartners')
         partner_ids = self.env.registry.populated_models['res.partner']
         partner_not_company_ids = (
             self.env['res.partner'].search([('id', 'in', partner_ids), ('is_company', '=', False)]).ids