Having two date time pickers on the same form

<link rel="stylesheet" type="text/css" href="../testdatetime/jquery.datetimepicker.css"/ >
	<script src="../testdatetime/jquery.js"></script>
	<script src="../testdatetime/jquery.datetimepicker.js"></script>
	
	<label for="datetimepicker">Enter the start date and time of the event</label>
	<br></br>
	<input name="event_start_date_time" id="datetimepicker" type="text" >
	<br></br>
	
	<label for="datetimepicker">Enter the end date and time of the event</label>
	<br></br>
	<input name="event_end_date_time" id="datetimepicker" type="text" >
	<br></br>
	
	
	<script>
	jQuery('#datetimepicker').datetimepicker();
	</script><br></br>