diff --git a/lib/web/mage/calendar.js b/lib/web/mage/calendar.js
index 2ed4de71f3f40..b7efe8424b365 100644
--- a/lib/web/mage/calendar.js
+++ b/lib/web/mage/calendar.js
@@ -1,6 +1,6 @@
 /**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
+ * Copyright 2025 Adobe
+ * All Rights Reserved.
  */
 
 /*eslint max-depth: 0*/
@@ -104,9 +104,15 @@ define([
 
         _overwriteFindPos: function () {
             $.datepicker.constructor.prototype._findPos = function (obj) {
-                let domPosition = obj.getBoundingClientRect();
-
-                return [domPosition.left, domPosition.top];
+                var rect = obj.getBoundingClientRect(),
+                    docEl = document.documentElement,
+                    left = rect.left + (window.pageXOffset || docEl.scrollLeft || 0),
+                    top = rect.top + (window.pageYOffset || docEl.scrollTop || 0);
+                    
+                if (!obj || typeof obj.getBoundingClientRect !== 'function') {
+                    return [0, 0];
+                }                
+                return [left, top];
             };
         },