datime with timepicker in symfony2

gistfile1.txt

//////////// in template
<style>

/* css for timepicker */
.ui-timepicker-div .ui-widget-header { margin-bottom: 8px; }
.ui-timepicker-div dl { text-align: left; }
.ui-timepicker-div dl dt { height: 25px; margin-bottom: -25px; }
.ui-timepicker-div dl dd { margin: 0 10px 10px 65px; }
.ui-timepicker-div td { font-size: 90%; }
.ui-tpicker-grid-label { background: none; border: none; margin: 0; padding: 0; }

.ui-timepicker-rtl{ direction: rtl; }
.ui-timepicker-rtl dl { text-align: right; }
.ui-timepicker-rtl dl dd { margin: 0 65px 10px 10px; }

</style>
<script>
jQuery(window).load(function() {

	 jQuery( "#LessonEdit_startDate" ).datetimepicker({
         timeFormat: 'hh:mm:ss',
         dateFormat: 'yy-mm-dd',
         controlType: 'select'
     });
});

</script>


/////////// in formtype
->add('startDate', 'datetime', array('label'  => 'date', 'widget' => 'single_text', 'format' => 'yyyy-MM-dd hh:mm:ss'))




//////////////////// in entity
        /**
	 * @ORM\Column(type="datetime", name="startDate")
	 *
	 * @var DateTime $startDate
	 */
	protected $startDate;