‌通常在我们建设网站的时候，时间一长就不清楚具体建设开始时间了，那么如何快捷添加网站运行时间代码呢？其实很简单，下面分享下本站使用过的方法，直接复制代码到相应位置，根据需要做合适调整即可。

如图：

代码：

<span id="timeDate">载入天数...</span><span id="times">载入时分秒...</span> 

<script language="javascript"> 

 var now = new Date();

 function createtime(){

  var grt= new Date("06/23/2016 00:00:00");/*---这里是网站的启用时间--*/

  now.setTime(now.getTime()+250);

  days = (now - grt ) / 1000 / 60 / 60 / 24;

  dnum = Math.floor(days);

  hours = (now - grt ) / 1000 / 60 / 60 - (24 * dnum);

  hnum = Math.floor(hours);

  if(String(hnum).length ==1 ){hnum = "0" + hnum;}

  minutes = (now - grt ) / 1000 /60 - (24 * 60 * dnum) - (60 * hnum);

  mnum = Math.floor(minutes);

  if(String(mnum).length ==1 ){mnum = "0" + mnum;}

  seconds = (now - grt ) / 1000 - (24 * 60 * 60 * dnum) - (60 * 60 * hnum) - (60 * mnum);

  snum = Math.round(seconds);

  if(String(snum).length ==1 ){snum = "0" + snum;}

  document.getElementById("timeDate").innerHTML = "稳定运行"+dnum+"天";

  document.getElementById("times").innerHTML = hnum + "小时" + mnum + "分" + snum + "秒";

 }

 setInterval("createtime()",250); 

</script>