※ JavaScript 와 CSS 파일의 선언 순서가 중요!!!
<!doctype html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Bootstrap 3 Datepicker</title>
<script type="text/javascript" src="/js/jquery.min.js"></script>
<script type="text/javascript" src="/js/moment.min.js"></script>
<script type="text/javascript" src="/js/bootstrap.min.js"></script>
<script type="text/javascript" src="/js/locale/ko.js"></script>
<script type="text/javascript" src="/js/bootstrap-datetimepicker.min.js"></script>
<link rel="stylesheet" href="/css/bootstrap.min.css" />
<link rel="stylesheet" href="/css/bootstrap-datetimepicker.min.css" />
</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>
<script type="text/javascript">
$(function () {
$('#datetimepicker1').datetimepicker();
});
</script>
</div>
</div>
</body>
</html>
참고1> https://eonasdan.github.io/bootstrap-datetimepicker/Installing/
참고2> https://eonasdan.github.io/bootstrap-datetimepicker/