Bootstrap日期时间选择器剩余秒数

<link rel="stylesheet" href="path/to/bootstrap-datetimepicker.css">
<script src="path/to/bootstrap-datetimepicker.js"></script>

<input type="text" id="datetimepicker" />

$(function() {
  $('#datetimepicker').datetimepicker({
    format: 'YYYY-MM-DD HH:mm:ss',
    minDate: new Date(), // 设置最小可选日期为当前日期
    maxDate: '2022-12-31', // 设置最大可选日期为指定日期
  });
});

$('#datetimepicker').on('dp.change', function(e) {
  var selectedDate = e.date;
  var currentDate = new Date();
  var remainingSeconds = Math.floor((selectedDate - currentDate) / 1000);
  console.log('剩余秒数：', remainingSeconds);
});