<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <div id="box1"></div> <script> var box=document.getElementById("box1"); function abc() { var time=new Date(); var newtime=new Date(2018,5,21,10,0,0); var x=newtime.getTime()-time.getTime(); var day=Math.floor(x/(24*60*60*1000)); var hou=Math.floor(x%(24*60*60*1000)/(60*60*1000)); var min=Math.floor(x%(24*60*60*1000)%(60*60*1000)/(60*1000)); var sec=Math.floor(x%(24*60*60*1000)%(60*60*1000)%(60*1000)/100)/10; box.innerHTML=""; box.innerHTML=day+"天"+hou+"小時"+min+"分"+sec+"秒" } setInterval(abc,100) </script> </body> </html>
