Used below piece of code in html header section of the page and able to read the Browser TimeZone from this. Code (Javascript): <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"> </script> <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/jstimezonedetect/1.0.4/jstz.min.js"> </script> <script type="text/javascript"> $(document).ready(function(){ var tz = jstz.determine(); // Determines the time zone of the browser client var timezone = tz.name(); //'Asia/Kolhata' for Indian Time. apex.item("P1_BROWSER_TZ").setValue(timezone); //alert('&P1_BROWSER_TZ.'); }); </script>