JavaScript时间类
获取时分秒：
getHours()
getMinutes();
getSeconds();
获取年月日：
getFullYear();
getMonth() + 1;//获取的月份需要+1；
getDate(); //日期
getDay(); //获取的是星期，0--》星期天
实例：（效果图）
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>电子时钟</title> <style type="text/css"> *{ margin: 0; padding: 0; } #wrap{ width: 200px; height: 100px; background-color: black; } #time{ color: #fff; display: block; font-size: 24px; margin: 0 auto; padding-top: 20px; /*border: 1px solid red;*/ text-align: center; width: 100px; } #timer{ color: green; display: block; font-size: 18px; margin: 0 auto; padding-top: 10px; /*border: 1px solid red;*/ text-align: center; /* 100px;*/ } </style> </head> <body> <div id="wrap"> <span id="time"></span> <span id="timer"></span> </div> <script type="text/javascript"> var time =document.getElementById("time"); var timer =document.getElementById("timer"); setInterval(function() { var date = new Date(); var hours = date.getHours(); var minutes = date.getMinutes(); var seconds = date.getSeconds(); var years = date.getYear(); var dates = date.getDate(); var monts = date.getMonth()+1; var day = date.getDay(); var parses = date.getMilliseconds()%60; switch(day){ case 0: day="日"; case 1: day="一"; case 2: day="二"; case 3: day="三"; case 4: day="四"; case 5: day="五"; case 6: day="六"; } //如果秒数小于十，在秒数面前连接一个0 if(seconds < 10) { seconds = "0" + seconds; } //如果分钟数小于十，在分钟数面前连接一个0 if(minutes < 10) { minutes = "0" + minutes; } //如果小时数小于十，在小说数面前连接一个0 if(hours < 10) { hours = "0" + hours; } if(years<1900) { years = years+1900; } if(dates<10) { dates = "0" + dates; } if(monts<10) { monts = "0" + monts; } if(parses<10) { // parses = "0" + parses; } timer.innerHTML = years +"年" +monts+ "月" +dates +"号"+"星期"+day; time.innerHTML = hours + ":" + minutes + ":" + seconds + ":" + parses; // date.getTime()//返回的是一个从1970年到当前的毫秒数（时间戳）（ms） // date.getMonth()//返回的是月份，从0开始算 // date.getFullYear(); },10) </script> </body> </html>
2.倒计时
<!doctype html> <html> <meta charset="utf-8"> <title>倒计时</title> <head> <style type="text/css"> *{ margin: 0; padding: 0; } .wrap{ width: 350px; height: 100px; background-color: black; } #dates{ color: #fff; margin-top: 10px; display: block; margin-left: 15px; } p{ color: #fff; } </style> </head> <body> <div class="wrap"> <p>距离2016年02月08号00时00分00秒春节倒计时：</p> <!-- <p>距离2016年01月07号23时59分59秒倒计时：</p> --> <span id="dates"></span> </div> <script type="text/javascript"> var dates = document.getElementById("dates"); function getRTime(){ var EndTime= new Date('2016/02/07 23:59:59'); //截止时间 var NowTime = new Date(); var t =EndTime.getTime() - NowTime.getTime(); var d=Math.floor(t/1000/60/60/24); var h=Math.floor(t/1000/60/60%24); var m=Math.floor(t/1000/60%60); var s=Math.floor(t/1000%60); var p=Math.floor(t%60); if(d<10){ d="0"+d; } if(h<10){ h="0"+h; } if(m<10){ m="0"+m; } if(s<10){ s="0"+s; } if(p<10){ p="0"+p; } dates.innerHTML=d+ "日" + h + "小时"+ m +"分" + s +"秒"+p+"毫秒"; } setInterval(getRTime,1); </script> </body> </html>