timepicker在angular中如何转化为时间戳？

'/bootstrap-datetimepicker.min.css',
'/bootstrap-datetimepicker.min.js',
'/bootstrap-datetimepicker.zh-CN.js',//中文包

<p class="input-group date form_datetime" data-date-format="yyyy-mm-dd hh:ii:ss" data-link-field="dtp_input1" id="effStartDate"> //设置时间格式为 yyyy-mm-dd hh:ii:ss 。设置ID为 effStartDate
<input class="form-control" size="16" type="text" value="" readonly> 
　　　　<span class="input-group-addon">
　　　　  <span class="glyphicon glyphicon-remove"></span>
    </span> 
    <span class="input-group-addon">
      <span class="glyphicon glyphicon-th"></span>
    </span> 
</p>

 var dateFrom = $("#effStartDate input").val();//设置一个ID，取到bootstrap timepicker的值
 $scope.effStartDate=new Date(dateFrom.substring(0,19).replace(/-/g,'/')).getTime()/1000;//转化为时间戳