diff --git a/addons/web/static/src/core/datetime/datetimepicker_service.js b/addons/web/static/src/core/datetime/datetimepicker_service.js
index 9c7242c9e1c..cf03620ba17 100644
--- a/addons/web/static/src/core/datetime/datetimepicker_service.js
+++ b/addons/web/static/src/core/datetime/datetimepicker_service.js
@@ -76,8 +76,7 @@ export const datetimePickerService = {
                  * value has changed, and set other internal variables accordingly.
                  */
                 const apply = () => {
-                    const serializedValue = JSON.stringify(pickerProps.value);
-                    if (areDatesEqual(lastInitialProps?.value, serializedValue)) {
+                    if (areDatesEqual(lastInitialProps?.value, deepCopy(pickerProps.value))) {
                         return;
                     }
 
@@ -89,13 +88,13 @@ export const datetimePickerService = {
 
                 const computeBasePickerProps = () => {
                     const nextInitialProps = markValuesRaw(hookParams.pickerProps);
-                    const serializedProps = deepCopy(nextInitialProps);
+                    const propsCopy = deepCopy(nextInitialProps);
 
-                    if (lastInitialProps && arePropsEqual(lastInitialProps, serializedProps)) {
+                    if (lastInitialProps && arePropsEqual(lastInitialProps, propsCopy)) {
                         return;
                     }
 
-                    lastInitialProps = serializedProps;
+                    lastInitialProps = propsCopy;
                     inputsChanged = ensureArray(lastInitialProps.value).map(() => false);
 
                     for (const [key, value] of Object.entries(nextInitialProps)) {
diff --git a/addons/web/static/tests/core/datetime/datetime_hook_tests.js b/addons/web/static/tests/core/datetime/datetime_hook_tests.js
index c2548d2a88c..0bad565c800 100644
--- a/addons/web/static/tests/core/datetime/datetime_hook_tests.js
+++ b/addons/web/static/tests/core/datetime/datetime_hook_tests.js
@@ -147,4 +147,36 @@ QUnit.module("Components", ({ beforeEach }) => {
 
         assert.strictEqual(pickerProps.value.toSQL().split(" ")[0], "2023-06-06");
     });
+
+    QUnit.test("value is not updated if it did not change", async (assert) => {
+        const getShortDate = (date) => date.toSQL().split(" ")[0];
+
+        let pickerProps;
+        const defaultPickerProps = {
+            value: DateTime.fromSQL("2023-06-06"),
+            type: "date",
+        };
+
+        const input = await mountInput(() => {
+            pickerProps = useDateTimePicker({
+                pickerProps: defaultPickerProps,
+                onApply: (value) => {
+                    assert.step(getShortDate(value));
+                },
+            }).state;
+        });
+
+        assert.strictEqual(input.value, "06/06/2023");
+        assert.strictEqual(getShortDate(pickerProps.value), "2023-06-06");
+
+        await editInput(input, null, "06/06/2023");
+
+        assert.strictEqual(getShortDate(pickerProps.value), "2023-06-06");
+        assert.verifySteps([]);
+
+        await editInput(input, null, "07/06/2023");
+
+        assert.strictEqual(getShortDate(pickerProps.value), "2023-06-07");
+        assert.verifySteps(["2023-06-07"]);
+    });
 });