diff --git a/Core ServiceNow APIs/GlideDateTime/Calculate Due date using user defined schedules/README.md b/Core ServiceNow APIs/GlideDateTime/Calculate Due date using user defined schedules/README.md
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+**Description:**
+This  Script Include  calculates a future due date by adding a specified number of business days to a given start date, based on a defined schedule.
+This can be used anywhere within the server side scripts like fix scripts, background scripts, UI Action (server script).
+
+**Pre-requisite:**
+A schedule record with valid schedule entries should be created in the cmn_schedule table
+
+**Sample:**
+var daysToAdd = 4; // No of days need to be added
+var script = new CaclculateDueDate().calculateDueDate(new GlideDateTime(),daysToAdd); // Passing the current date and daysToAdd value to script include
+gs.print(script);
+
+**Output:**
+*** Script: 2025-10-09 11:23:34
diff --git a/Core ServiceNow APIs/GlideDateTime/Calculate Due date using user defined schedules/script.js b/Core ServiceNow APIs/GlideDateTime/Calculate Due date using user defined schedules/script.js
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+++ b/Core ServiceNow APIs/GlideDateTime/Calculate Due date using user defined schedules/script.js	
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+var CaclculateDueDate = Class.create();
+CaclculateDueDate.prototype = {
+    initialize: function() {},
+
+    calculateDueDate: function(date, days_to_add) {
+        var checkDate = new GlideDateTime(date);
+        var daysToAdd = days_to_add;
+
+
+        while (daysToAdd > 0) {
+            var sched = new GlideSchedule('c798c1dfc3907e1091ea5242b40131c8'); // Schedule record SYS_ID. Currently 9-5 Weekdays and Indian Public Holiday(excluded) schedule has been used
+            checkDate.addDaysLocalTime(1);
+            if (sched.isInSchedule(checkDate)) {
+                daysToAdd--;
+
+            } else {
+                continue;
+
+            }
+        }
+
+        return checkDate.getValue();
+    },
+
+    type: 'CaclculateDueDate'
+};