diff --git a/homeassistant/helpers/selector.py b/homeassistant/helpers/selector.py
index 1652e2110f4..3da4ccd1880 100644
--- a/homeassistant/helpers/selector.py
+++ b/homeassistant/helpers/selector.py
@@ -207,7 +207,11 @@ class DurationSelector(Selector):
 
     selector_type = "duration"
 
-    CONFIG_SCHEMA = vol.Schema({})
+    CONFIG_SCHEMA = vol.Schema(
+        {
+            vol.Optional("enable_day"): cv.boolean,
+        }
+    )
 
     def __call__(self, data: Any) -> dict[str, float]:
         """Validate the passed selection."""
diff --git a/tests/helpers/test_selector.py b/tests/helpers/test_selector.py
index e9e70f15fad..5a2bc0c0baa 100644
--- a/tests/helpers/test_selector.py
+++ b/tests/helpers/test_selector.py
@@ -384,6 +384,11 @@ def test_attribute_selector_schema(schema, valid_selections, invalid_selections)
             ({"seconds": 10},),
             (None, {}),
         ),
+        (
+            {"enable_day": True},
+            ({"seconds": 10},),
+            (None, {}),
+        ),
     ),
 )
 def test_duration_selector_schema(schema, valid_selections, invalid_selections):