diff --git a/django/db/backends/oracle/schema.py b/django/db/backends/oracle/schema.py
index 47d60ea290..70698b15e7 100644
--- a/django/db/backends/oracle/schema.py
+++ b/django/db/backends/oracle/schema.py
@@ -6,6 +6,7 @@ from django.db import DatabaseError
 from django.db.backends.base.schema import (
     BaseDatabaseSchemaEditor, _related_non_m2m_objects,
 )
+from django.utils.duration import duration_iso_string
 
 
 class DatabaseSchemaEditor(BaseDatabaseSchemaEditor):
@@ -27,6 +28,8 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor):
     def quote_value(self, value):
         if isinstance(value, (datetime.date, datetime.time, datetime.datetime)):
             return "'%s'" % value
+        elif isinstance(value, datetime.timedelta):
+            return "'%s'" % duration_iso_string(value)
         elif isinstance(value, str):
             return "'%s'" % value.replace("\'", "\'\'").replace('%', '%%')
         elif isinstance(value, (bytes, bytearray, memoryview)):
diff --git a/tests/schema/tests.py b/tests/schema/tests.py
index 72a73745ed..cd6a52f6af 100644
--- a/tests/schema/tests.py
+++ b/tests/schema/tests.py
@@ -12,10 +12,11 @@ from django.db import (
 from django.db.models import (
     CASCADE, PROTECT, AutoField, BigAutoField, BigIntegerField, BinaryField,
     BooleanField, CharField, CheckConstraint, DateField, DateTimeField,
-    DecimalField, F, FloatField, ForeignKey, ForeignObject, Index,
-    IntegerField, JSONField, ManyToManyField, Model, OneToOneField, OrderBy,
-    PositiveIntegerField, Q, SlugField, SmallAutoField, SmallIntegerField,
-    TextField, TimeField, UniqueConstraint, UUIDField, Value,
+    DecimalField, DurationField, F, FloatField, ForeignKey, ForeignObject,
+    Index, IntegerField, JSONField, ManyToManyField, Model, OneToOneField,
+    OrderBy, PositiveIntegerField, Q, SlugField, SmallAutoField,
+    SmallIntegerField, TextField, TimeField, UniqueConstraint, UUIDField,
+    Value,
 )
 from django.db.models.fields.json import KeyTextTransform
 from django.db.models.functions import Abs, Cast, Collate, Lower, Random, Upper
@@ -640,6 +641,19 @@ class SchemaTests(TransactionTestCase):
         # these two types.
         self.assertIn(columns['bits'][0], ("BinaryField", "TextField"))
 
+    def test_add_field_durationfield_with_default(self):
+        with connection.schema_editor() as editor:
+            editor.create_model(Author)
+        new_field = DurationField(default=datetime.timedelta(minutes=10))
+        new_field.set_attributes_from_name('duration')
+        with connection.schema_editor() as editor:
+            editor.add_field(Author, new_field)
+        columns = self.column_classes(Author)
+        self.assertEqual(
+            columns['duration'][0],
+            connection.features.introspected_field_types['DurationField'],
+        )
+
     @unittest.skipUnless(connection.vendor == 'mysql', "MySQL specific")
     def test_add_binaryfield_mediumblob(self):
         """
@@ -1885,6 +1899,32 @@ class SchemaTests(TransactionTestCase):
         if not any(details['columns'] == ['height'] and details['check'] for details in constraints.values()):
             self.fail("No check constraint for height found")
 
+    @skipUnlessDBFeature('supports_column_check_constraints', 'can_introspect_check_constraints')
+    @isolate_apps('schema')
+    def test_check_constraint_timedelta_param(self):
+        class DurationModel(Model):
+            duration = DurationField()
+
+            class Meta:
+                app_label = 'schema'
+
+        with connection.schema_editor() as editor:
+            editor.create_model(DurationModel)
+        self.isolated_local_models = [DurationModel]
+        constraint_name = 'duration_gte_5_minutes'
+        constraint = CheckConstraint(
+            check=Q(duration__gt=datetime.timedelta(minutes=5)),
+            name=constraint_name,
+        )
+        DurationModel._meta.constraints = [constraint]
+        with connection.schema_editor() as editor:
+            editor.add_constraint(DurationModel, constraint)
+        constraints = self.get_constraints(DurationModel._meta.db_table)
+        self.assertIn(constraint_name, constraints)
+        with self.assertRaises(IntegrityError), atomic():
+            DurationModel.objects.create(duration=datetime.timedelta(minutes=4))
+        DurationModel.objects.create(duration=datetime.timedelta(minutes=10))
+
     @skipUnlessDBFeature('supports_column_check_constraints', 'can_introspect_check_constraints')
     def test_remove_field_check_does_not_remove_meta_constraints(self):
         with connection.schema_editor() as editor: