diff --git a/web/pgadmin/static/js/components/FormComponents.jsx b/web/pgadmin/static/js/components/FormComponents.jsx
index 25e5ce5a1..ea80389f6 100644
--- a/web/pgadmin/static/js/components/FormComponents.jsx
+++ b/web/pgadmin/static/js/components/FormComponents.jsx
@@ -354,7 +354,8 @@ export function InputDateTimePicker({ value, onChange, readonly, controlProps, e
     format: format.replace('xxx', timeZoneString),
     label: '',
     variant: 'inline',
-    ampm: controlProps.ampm ? controlProps.ampm : undefined,
+    // DatePicker has no clock and passes unknown props through to the DOM.
+    ampm: controlProps?.pickerType === 'Date' ? undefined : controlProps.ampm,
     disablePast: controlProps.disablePast || false,
     onChange: handleChange,
     slotProps: {textField: {placeholder:placeholder, error: error}}
diff --git a/web/regression/javascript/components/InputDateTimePicker.spec.js b/web/regression/javascript/components/InputDateTimePicker.spec.js
new file mode 100644
index 000000000..26cd28e68
--- /dev/null
+++ b/web/regression/javascript/components/InputDateTimePicker.spec.js
@@ -0,0 +1,48 @@
+/////////////////////////////////////////////////////////////
+//
+// pgAdmin 4 - PostgreSQL Tools
+//
+// Copyright (C) 2013 - 2026, The pgAdmin Development Team
+// This software is released under the PostgreSQL Licence
+//
+//////////////////////////////////////////////////////////////
+
+import {render} from '@testing-library/react';
+import {DatePicker, DateTimePicker, TimePicker} from '@mui/x-date-pickers';
+import {InputDateTimePicker} from '../../../pgadmin/static/js/components/FormComponents';
+
+jest.mock('@mui/x-date-pickers', () => ({
+  DatePicker: jest.fn(() => null),
+  DateTimePicker: jest.fn(() => null),
+  TimePicker: jest.fn(() => null),
+}));
+
+describe('InputDateTimePicker clock mode', () => {
+  beforeEach(() => jest.clearAllMocks());
+
+  const renderPicker = (pickerType, ampm) => {
+    const controlProps = {pickerType};
+    if (ampm !== undefined) {
+      controlProps.ampm = ampm;
+    }
+    render(<InputDateTimePicker value={null} onChange={jest.fn()}
+      controlProps={controlProps} />);
+  };
+
+  it.each([false, true, undefined])('does not pass ampm=%s to the Date picker', (ampm) => {
+    renderPicker('Date', ampm);
+    expect(DatePicker).toHaveBeenCalled();
+    expect(DatePicker.mock.calls[0][0].ampm).toBeUndefined();
+  });
+
+  describe.each([
+    ['Time', TimePicker],
+    ['DateTime', DateTimePicker],
+  ])('%s picker', (pickerType, Picker) => {
+    it.each([false, true, undefined])('forwards ampm=%s unchanged', (ampm) => {
+      renderPicker(pickerType, ampm);
+      expect(Picker).toHaveBeenCalled();
+      expect(Picker.mock.calls[0][0].ampm).toBe(ampm);
+    });
+  });
+});