Convert UTC time to local time (#1892)

* script.js

* readme.md

Author: bhavyaa30

Core ServiceNow APIs/GlideDateTime/Convert UTC Time To Local Time/readme.md

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+## Overview
+This script converts a UTC date/time field in ServiceNow to the local time of the user that the script runs under using GlideDateTime.
+This distinction is important in certain contexts, such as asynchronous business rules, scheduled jobs, or background scripts, where the executing user may differ from the record owner.
+It is useful for notifications, reports, dashboards, or any situation where users need localized timestamps that reflect the correct timezone.
+
+## Table and Field Example
+Table: incident
+Field: opened_at (stored in UTC)
+
+## How It Works
+The script queries the incident table for the most recent active incident.
+Retrieves the opened_at field (in UTC).
+Creates a GlideDateTime object to convert this UTC timestamp into the local time of the executing user.
+Logs both the original UTC time and the converted local time.
+
+## Key Notes
+Conversion is always based on the timezone of the user executing the script.
+In asynchronous operations (background scripts, scheduled jobs, async business rules), this is the system user running the script.
+
+## Reference
+https://developer.servicenow.com/dev.do#!/reference/api/zurich/server_legacy/c_GlideDateTimeAPI

Core ServiceNow APIs/GlideDateTime/Convert UTC Time To Local Time/script.js

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+(function() {
+    var gr = new GlideRecord('incident');
+    gr.addQuery('active', true);
+    gr.orderByDesc('opened_at');
+    gr.setLimit(1); // Example: take the latest active incident
+    gr.query();
+
+    if (gr.next()) {
+        // GlideDateTime object from UTC field
+        var utcDateTime = gr.opened_at;
+
+        // Convert to user's local time zone
+        var localTime = new GlideDateTime(utcDateTime);
+        var displayValue = localTime.getDisplayValue(); // Returns local time in user's timezone
+
+        gs.info('UTC Time: ' + utcDateTime);
+        gs.info('Local Time: ' + displayValue);
+    } else {
+        gs.info('No active incidents found.');
+    }
+})();