I have been following the instructions to implement a date time picker from this tutorial. I downloaded the necessary js and css files and placed them in the respective directories. However, when I click on the calendar icon, the calendar does not pop up.
$(function() {
$('#datetimepicker1').datetimepicker();
});
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link rel="stylesheet" type="text/css" href="css/bootstrap-datetimepicker.css">
<link rel="stylesheet" type="text/css" href="css/bootstrap-datetimepicker.min.css">
<link rel="stylesheet" type="text/css" href="css/bootstrap-datetimepicker-standalone.css">
<script type="text/javascript" src="js/bootstrap-datetimepicker.min.js"></script>
</head>
<body>
<div class="container">
<div class="row">
<div class='col-sm-6'>
<div class="form-group">
<div class='input-group date' id='datetimepicker1'>
<input type='text' class="form-control" />
<span class="input-group-addon">
<span class="glyphicon glyphicon-calendar"></span>
</span>
</div>
</div>
</div>
</div>
</div>