diff --git a/.isort.cfg b/.isort.cfg
index da6da63fd..98b216f74 100644
--- a/.isort.cfg
+++ b/.isort.cfg
@@ -9,4 +9,4 @@ line_length=88
 known_odoo=odoo
 known_odoo_addons=odoo.addons
 sections=FUTURE,STDLIB,THIRDPARTY,ODOO,ODOO_ADDONS,FIRSTPARTY,LOCALFOLDER
-known_third_party=pytz,setuptools
+known_third_party=setuptools
diff --git a/base_jsonify/models/models.py b/base_jsonify/models/models.py
index 24ad417f0..195eb9e17 100644
--- a/base_jsonify/models/models.py
+++ b/base_jsonify/models/models.py
@@ -3,8 +3,6 @@
 # Raphaël Reverdy <raphael.reverdy@akretion.com>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
-import pytz
-
 from odoo import api, fields, models
 from odoo.exceptions import UserError
 from odoo.tools.translate import _
@@ -74,11 +72,13 @@ class Base(models.AbstractModel):
                     elif field_type == "date":
                         value = fields.Date.to_date(value).isoformat()
                     elif field_type == "datetime":
-                        value = (
-                            fields.Datetime.to_datetime(value)
-                            .replace(tzinfo=pytz.utc)
-                            .isoformat()
-                        )
+                        # Ensures value is a datetime
+                        value = fields.Datetime.to_datetime(value)
+                        # Get the timestamp converted to the client's timezone.
+                        # This call also add the tzinfo into the datetime
+                        # object
+                        value = fields.Datetime.context_timestamp(rec, value)
+                        value = value.isoformat()
                     res[json_key] = value
             result.append(res)
         return result
diff --git a/base_jsonify/tests/test_get_parser.py b/base_jsonify/tests/test_get_parser.py
index a27fb720a..9c9b79a32 100644
--- a/base_jsonify/tests/test_get_parser.py
+++ b/base_jsonify/tests/test_get_parser.py
@@ -41,6 +41,8 @@ class TestParser(TransactionCase):
         self.assertEqual(parser, expected_parser)
 
     def test_json_export(self):
+        # Enforces TZ to validate the serialization result of a Datetime
+        self.env.user.tz = "Europe/Brussels"
         parser = [
             "lang",
             "comment",
@@ -105,7 +107,7 @@ class TestParser(TransactionCase):
                     "email": None,
                 }
             ],
-            "create_date": "2019-10-31T14:39:49+00:00",
+            "create_date": "2019-10-31T15:39:49+01:00",
             "date": "2019-10-31",
         }
         json_partner = partner.jsonify(parser)