I want to modify odoo datetime widget in a UTC format beacuse it is set to user timezone by default. I am modifying the javascript file but unable to find where should I have to make the changes. I am uploading my code below. I am finding the solution for more than a week ago. Kindly help me out. Your responses will be appreciated.

fields_utils.js

odoo.define('crm_2.field_utils', function (require) {
"use strict";
// override Datetime function

var field_utils = require('web.field_utils');


function formatDateTime(value, field, options) {
    if (value === false) {
        return "";
    }
    if (!options || !('timezone' in options) || options.timezone) {
        value = value.clone().add(session.getTZOffset(value), 'minutes');
    }
    return value.format(time.getLangDatetimeFormat());
}

});

odoo.define ( 'crm_2.date_picker' , function (require) { 
"use strict" ; 

var date_picker = require ( 'web.date_picker' ); 

date_picker.include ({ 

    changeDatetime: function () { 
        if ( this .__ libInput> 0 ) { 
            if ( this .options.warn_future) { 
                this ._warnFuture ( this .getValue ()); 
            } 
            this .trigger ( "datetime_changed" ); 
            return ; 
        } 
        var oldValue = this.getValue (); 
        if ( this .isValid ()) { 
            this ._setValueFromUi (); 
            var newValue = this .getValue (); 
            var hasChanged =! oldValue! ==! newValue; 
            if (oldValue && newValue) { 
                var formattedOldValue = oldValue.format (time.getLangDatetimeFormat ()); 
                var formattedNewValue = newValue.format (time.getLangDatetimeFormat ()); 
                if (formattedNewValue! == formattedOldValue) { 
                    hasChanged = true ; 
                } 
            } 
            if (hasChanged) { 
                if ( this.options.warn_future) { 
                    this ._warnFuture (newValue); 
                } 
                this .trigger ( "datetime_changed" ); 
            } 
        } else { 
            var formattedValue = oldValue? this ._formatClient (oldValue): null ; 
            this . $ input.val (formattedValue); 
        } 
    }, 

}); 



return date_picker; 

});