diff --git a/odoo/addons/base/models/ir_qweb_fields.py b/odoo/addons/base/models/ir_qweb_fields.py
index 3efe3dc30bc41..a65e4dd686197 100644
--- a/odoo/addons/base/models/ir_qweb_fields.py
+++ b/odoo/addons/base/models/ir_qweb_fields.py
@@ -639,13 +639,26 @@ def value_to_html(self, value, options):
             v, r = divmod(r, secs_per_unit)
             if not v:
                 continue
-            section = babel.dates.format_timedelta(
-                v*secs_per_unit,
-                granularity=round_to,
-                add_direction=options.get('add_direction'),
-                format=options.get('format', 'long'),
-                threshold=1,
-                locale=locale)
+            try:
+                section = babel.dates.format_timedelta(
+                    v*secs_per_unit,
+                    granularity=round_to,
+                    add_direction=options.get('add_direction'),
+                    format=options.get('format', 'long'),
+                    threshold=1,
+                    locale=locale)
+            except KeyError:
+                # in case of wrong implementation of babel, try to fallback on en_US locale.
+                # https://github.com/python-babel/babel/pull/827/files
+                # Some bugs already fixed in 2.10 but ubuntu22 is 2.8
+                localeUS = babel_locale_parse('en_US')
+                section = babel.dates.format_timedelta(
+                    v*secs_per_unit,
+                    granularity=round_to,
+                    add_direction=options.get('add_direction'),
+                    format=options.get('format', 'long'),
+                    threshold=1,
+                    locale=localeUS)
             if section:
                 sections.append(section)
 
diff --git a/odoo/addons/base/tests/test_qweb.py b/odoo/addons/base/tests/test_qweb.py
index 07fa58091eaec..c0adc6b4b946b 100644
--- a/odoo/addons/base/tests/test_qweb.py
+++ b/odoo/addons/base/tests/test_qweb.py
@@ -1659,6 +1659,17 @@ def test_render_widget_contact(self):
         })
         self.env['ir.qweb']._render(view1.id, {'user': u})  # should not crash
 
+    def test_render_widget_duration_fallback(self):
+        self.env['res.lang'].with_context(active_test=False).search([('code', '=', 'pt_BR')]).active = True
+        view1 = self.env['ir.ui.view'].create({
+            'name': "dummy",
+            'type': 'qweb',
+            'arch': """
+                <t t-name="base.dummy"><root><span t-esc="3600" t-options='{"widget": "duration", "format": "short"}' /></root></t>
+            """
+        })
+        self.env['ir.qweb'].with_context(lang='pt_BR')._render(view1.id, {})  # should not crash
+
     def test_void_element(self):
         view = self.env['ir.ui.view'].create({
             'name': 'master',