private void convertToUserTime(ArrayList result, double userTimeZone)
    {
        if (result == null) {
            return;
        }

        double resTimeZone = resource_.getResourceTimeZone();
        long[] array = null;
        long from = 0;

        try
        {
            // convert the start time of a local time to a user time
            Iterator it = result.iterator();
            while ( it.hasNext() )
            {
                array = (long[]) it.next();
                from = AdvanceReservation.convertTimeZone(array[0], resTimeZone,
                            userTimeZone);
                array[0] = from;
            }
        }
        catch (Exception e) {
            // print error msg
        }
    }