<p id="demo">单击按钮以显示当地时间,使用UTC日期-时间</p>

<button onclick="myFunction()">点我</button>

<script>

function myFunction(){

    var d = new Date(Date.UTC(2012,02,30));

    var x = document.getElementById("demo");

    x.innerHTML=d;

}

</script>

​