diff --git a/Server-Side Components/Business Rules/Calculate Incident Duration and Validation/Duration.js b/Server-Side Components/Business Rules/Calculate Incident Duration and Validation/Duration.js
new file mode 100644
index 0000000000..4860ad3869
--- /dev/null
+++ b/Server-Side Components/Business Rules/Calculate Incident Duration and Validation/Duration.js	
@@ -0,0 +1,36 @@
+(function executeRule(current, previous /*null when async*/ ) {
+
+    /*
+		Inputs
+		1. Opened(opened_at)
+		2. Resolved(resolved_at)
+
+		Checks & Validation
+		1. It will check the Date/Time validation whether it Resolved time should be greater than Open time 
+		2. And it will not calculate the empty values
+
+		Outputs
+		1. If everthing has a right value like the Opened < Resolve Date/Time then Duration will be calculated and populated in the respective field
+		2. Negative case if Opened > Resolved the duration will not calculate and it will Abort the action to save the record with Error message.
+	*/
+
+	// Getting both the date from the record
+    var opened = GlideDateTime(current.opened_at.getDisplayValue());
+    var resolved = GlideDateTime(current.resolved_at.getDisplayValue());
+
+    //If the opened and resolved times are present, calculate the duration
+    if (opened && resolved) {
+        var difference = GlideDateTime.subtract(opened, resolved);
+        if (difference.getYearUTC() >= 1970)
+            current.calendar_duration.setValue(difference);
+        else {
+            current.calendar_duration.setValue(null);
+            current.resolved_at.setValue(null);
+            current.setAbortAction(true);
+            gs.addErrorMessage("Incident Resolve date/time must be greater than incident Opened date/time");
+        }
+    }
+
+
+
+})(current, previous);
\ No newline at end of file
diff --git a/Server-Side Components/Business Rules/Calculate Incident Duration and Validation/Readme.md b/Server-Side Components/Business Rules/Calculate Incident Duration and Validation/Readme.md
new file mode 100644
index 0000000000..d870bbac1b
--- /dev/null
+++ b/Server-Side Components/Business Rules/Calculate Incident Duration and Validation/Readme.md	
@@ -0,0 +1,11 @@
+Calculate Incident Duration and Validation.
+
+Script Type : Business Rule Trigger: before update Table: incident Condition: Resolved Changes or Opened Changes
+
+Goal : To calculate the duration of a particular record and how much time has been spent on a particular ticket.
+
+Walk through of code :
+So when the Resolved Changes or Opened Changes in a particular record to calculate the duration will this Business rule will pull those values
+And then check whether the Opened Data/Time is lesser than the Resolved Date/Time the will calculate the duration 
+Else it will throw the Error Message and then Abort that action and won't save the record and will clear the values.
+