time picker drupdown error that not run please help me

My drupdown timepicker dont work!!!

$(document).ready(function() {
    $('.timepicker-input').timepicker({
        timeFormat: 'h:mm p',
        interval: 60,
        minTime: '10',
        maxTime: '6:00pm',
        defaultTime: '11',
        startTime: '10:00',
        dynamic: true,
        dropdown: true,
        scrollbar: true
    });

});