这对我来说很有效，但这取决于你点击Date()时得到的结果:

Date().slice(16,-12)

这- - - - - -

var x = new Date(); 
var h = x.getHours(); 
var m = x.getMinutes(); 
var s = x.getSeconds(); 

so-

 x = date
h = hours
m = mins
s = seconds

试试这个:

var date = new Date();
var hour = date.getHours();
var min = date.getMinutes();

简单的函数，以获得日期和时间分离，并与时间和日期HTML输入兼容的格式

function formatDate(date) {
  var d         = new Date(date),
      month = '' + (d.getMonth() + 1),
      day   = '' + d.getDate(),
      year  = d.getFullYear();

  if (month.length < 2) month = '0' + month;
  if (day.length < 2) day = '0' + day;

  return [year, month, day].join('-');
}

function formatTime(date) {
        var hours   = new Date().getHours() > 9 ? new Date().getHours() : '0' + new Date().getHours()
        var minutes = new Date().getMinutes() > 9 ? new Date().getMinutes() : '0' + new Date().getMinutes()

        return hours + ':' + minutes
}

var today = new Date();  //gets current date and time
var hour = today.getHours();         
var minute = today.getMinutes();
var second = today.getSeconds();

试试这个

new Date().toTimeString().slice(0, 8);

or

new Date().toTimeString().split(" ")[0];

它应该会起作用。