Requestor TimeZone field on Change form

[PhanitaM]

Hi Team , 

I have a requirement where user want 'Requestor TimeZone'  field on the form which will auto-populate opened  by user's timezone.  Can someone please help me how to achieve this functionality.

Thank you!

[Sandeep Rajput]

@PhanitaM You can use a combination of a client script and script include to populate the opened for user's timezone.

function onChange(control, oldValue, newValue, isLoading) {
    if (!newValue) {
        g_form.clearValue('u_requestor_timezone');
        return;
    }

    // GlideAjax to fetch the user's timezone from sys_user
    var ga = new GlideAjax('UserDetailsUtils');  
    ga.addParam('sysparm_name', 'getUserTimeZone');
    ga.addParam('sysparm_user', newValue);
    
    ga.getXML(function(response) {
        var answer = response.responseXML.documentElement.getAttribute("answer");
        if (answer) {
            g_form.setValue('u_requestor_timezone', answer);
        } else {
            g_form.clearValue('u_requestor_timezone');
        }
    });
}

Script Include:

var UserDetailsUtils = Class.create();
UserDetailsUtils.prototype = Object.extendsObject(AbstractAjaxProcessor, {
    /**
     * GlideAjax callable method to return a user's time_zone value.
     * Expects sysparm_user = sys_id of the user. If omitted, returns current user's timezone.
     */
    getUserTimeZone: function() {
        var userSysId = this.getParameter('sysparm_user');
        if (!userSysId)
            userSysId = this.getUserID();

        var gr = new GlideRecord('sys_user');
        if (gr.get(userSysId)) {
            // use getValue to avoid returning GlideElement
            return gr.getValue('time_zone') || '';
        }
        return '';
    },

    type: 'UserDetailsUtils'
});