diff --git a/src/components/_classes/component/Component.js b/src/components/_classes/component/Component.js
index c25b280a2c..1f5f374733 100644
--- a/src/components/_classes/component/Component.js
+++ b/src/components/_classes/component/Component.js
@@ -2884,7 +2884,7 @@ export default class Component extends Element {
       return value;
     };
 
-    if (this.defaultMask) {
+    if (Array.isArray(this.defaultMask) ? this.defaultMask.length > 0 : this.defaultMask) {
       if (Array.isArray(defaultValue)) {
         defaultValue = defaultValue.map(checkMask);
       }
diff --git a/test/unit/TextField.unit.js b/test/unit/TextField.unit.js
index 5016e3b0b2..f6f3bdb609 100644
--- a/test/unit/TextField.unit.js
+++ b/test/unit/TextField.unit.js
@@ -15,6 +15,8 @@ import {
   comp7,
 } from './fixtures/textfield';
 
+import { comp10 as formWithCalendarTextField } from './fixtures/datetime';
+
 describe('TextField Component', () => {
   it('Should create a new TextField', () => {
     const textField = new TextFieldComponent({
@@ -1359,6 +1361,23 @@ describe('TextField Component', () => {
       }, 300);
     }).catch(done);
   });
+  // see https://formio.atlassian.net/browse/FIO-9217
+  it('Should allow the populating of a calendar widget–text field component with a custom default value that is a moment datetime', (done) => {
+    const form = _.cloneDeep(formWithCalendarTextField);
+    const textFieldComponent = form.components[1];
+    textFieldComponent.customDefaultValue = "value=moment('2024-11-13 15:00:00')";
+
+    const element = document.createElement('div');
+
+    Formio.createForm(element, form).then(renderedForm => {
+      const renderedTextFieldComponent = renderedForm.getComponent('textField');
+      setTimeout(() => {
+        const input = renderedTextFieldComponent.element.querySelector('.input');
+        assert.equal(input.value, '2024-11-13 03:00 PM');
+        done();
+      }, 200);
+    }).catch(done);
+  });
 
   it('Test Display mask', (done) => {
     const element = document.createElement('div');