<!DOCTYPE HTML>
<html>
  <head>
    <link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.2/css/bootstrap-combined.min.css" rel="stylesheet">
    <link rel="stylesheet" type="text/css" media="screen"     href="http://tarruda.github.com/bootstrap-datetimepicker/assets/css/bootstrap-datetimepicker.min.css">
  </head>
  <body>
    <div id="datetimepicker" class="input-append date">
      <input type="text"></input>
      <span class="add-on"> 
       <i data-time-icon="icon-time" data-date-icon="icon-calendar"></i>
      </span>
    </div>
    <script type="text/javascript"     src="http://cdnjs.cloudflare.com/ajax/libs/jquery/1.8.3/jquery.min.js">
    </script>
     <script type="text/javascript"     src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.2/js/bootstrap.min.js">
    </script>
    <script type="text/javascript"     src="http://tarruda.github.com/bootstrap-datetimepicker/assets/js/bootstrap-datetimepicker.min.js">
    </script>
    <script type="text/javascript"     src="http://tarruda.github.com/bootstrap-datetimepicker/assets/js/bootstrap-datetimepicker.pt-BR.js">
    </script>
    <script type="text/javascript">
      $('#datetimepicker').datetimepicker({
        format: 'dd/MM/yyyy hh:mm:ss',
        language: 'pt-BR' 
     }); 
   </script>
  </body>
<html>

更多设置:

禁用日期选择：

<div class="well">
  <div id="datetimepicker3" class="input-append">
    <input data-format="hh:mm:ss" type="text"></input>
    <span class="add-on">
      <i data-time-icon="icon-time" data-date-icon="icon-calendar">
      </i>
    </span>
  </div>
</div>
<script type="text/javascript">  $(function() {
    $('#datetimepicker3').datetimepicker({
      pickDate: false    });  });
</script>

禁用时间选择：

<div class="well">
  <div id="datetimepicker4" class="input-append">
    <input data-format="yyyy-MM-dd" type="text"></input>
    <span class="add-on">
      <i data-time-icon="icon-time" data-date-icon="icon-calendar">
      </i>
    </span>
  </div>
</div>
<script type="text/javascript">  $(function() { 
   $('#datetimepicker4').datetimepicker({
      pickTime: false    });  });
</script>

选项设置：

$.fn.datetimepicker.defaults = {
  maskInput: true,           // disables the text input mask
  pickDate: true,            // disables the date picker
  pickTime: true,            // disables de time picker
  pick12HourFormat: false,   // enables the 12-hour format time picker
  pickSeconds: true,         // disables seconds in the time picker
  startDate: -Infinity,      // set a minimum date
  endDate: Infinity          // set a maximum date}

注：如果bootstrap-combined.min.css使用本地路径引用，需要在CSS文件夹平级的位置新建一个img文件夹，里面放置glyphicons-halflings.png和glyphicons-halflings-white.png两张图片文件，这两张图片可以从网上下载，也可以从下载的bootstrap压缩包中找到。
更多说明请参考：http://tarruda.github.io/bootstrap-datetimepicker/