var timestamp1 = Date.parse(new Date());
var timestamp2 = (new Date()).valueOf();
var timestamp3 = new Date().getTime();

var oldTime = (new Date("2015/06/23 08:00:20")).getTime()/1000;
getTime()返回数值的单位是毫秒。

function getLocalTime(nS) {  
 return new Date(parseInt(nS) * 1000).toLocaleString().replace(/:\d{1,2}$/,' ');  
}

function add0(m){return m<10"text-align: center">

三.封装的时间格式器




/** 
 * 和PHP一样的时间戳格式化函数 
 * @param {string} format 格式 
 * @param {int} timestamp 要格式化的时间 默认为当前时间 
 * @return {string}   格式化的时间字符串 
 */
function date(format, timestamp){ 
 var a, jsdate=((timestamp) "").length < c){ 
   return new Array(++c - n.length).join("0") + n; 
  } else { 
   return n; 
  } 
 }; 
 var txt_weekdays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]; 
 var txt_ordin = {1:"st", 2:"nd", 3:"rd", 21:"st", 22:"nd", 23:"rd", 31:"st"}; 
 var txt_months = ["", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]; 
 var f = { 
  // Day 
  d: function(){return pad(f.j(), 2)}, 
  D: function(){return f.l().substr(0,3)}, 
  j: function(){return jsdate.getDate()}, 
  l: function(){return txt_weekdays[f.w()]}, 
  N: function(){return f.w() + 1}, 
  S: function(){return txt_ordin[f.j()] "/1/1")) / 864e5  0}, 
  
  // Week 
  W: function(){ 
   var a = f.z(), b = 364 + f.L() - a; 
   var nd2, nd = (new Date(jsdate.getFullYear() + "/1/1").getDay() || 7) - 1; 
   if(b <= 2 && ((jsdate.getDay() || 7) - 1) <= 2 - b){ 
    return 1; 
   } else{ 
    if(a <= 2 && nd >= 4 && a >= (6 - nd)){ 
     nd2 = new Date(jsdate.getFullYear() - 1 + "/12/31"); 
     return date("W", Math.round(nd2.getTime()/1000)); 
    } else{ 
     return (1 + (nd <= 3 "").slice(2)}, 
  
  // Time 
  a: function(){return jsdate.getHours() > 11 "pm" : "am"}, 
  A: function(){return f.a().toUpperCase()}, 
  B: function(){ 
   // peter paul koch: 
   var off = (jsdate.getTimezoneOffset() + 60)*60; 
   var theSeconds = (jsdate.getHours() * 3600) + (jsdate.getMinutes() * 60) + jsdate.getSeconds() + off; 
   var beat = Math.floor(theSeconds/86.4); 
   if (beat > 1000) beat -= 1000; 
   if (beat < 0) beat += 1000; 
   if ((String(beat)).length == 1) beat = "00"+beat; 
   if ((String(beat)).length == 2) beat = "0"+beat; 
   return beat; 
  }, 
  g: function(){return jsdate.getHours() % 12 || 12}, 
  G: function(){return jsdate.getHours()}, 
  h: function(){return pad(f.g(), 2)}, 
  H: function(){return pad(jsdate.getHours(), 2)}, 
  i: function(){return pad(jsdate.getMinutes(), 2)}, 
  s: function(){return pad(jsdate.getSeconds(), 2)}, 
  //u not supported yet 
  
  // Timezone 
  //e not supported yet 
  //I not supported yet 
  O: function(){ 
   var t = pad(Math.abs(jsdate.getTimezoneOffset()/60*100), 4); 
   if (jsdate.getTimezoneOffset() > 0) t = "-" + t; else t = "+" + t; 
   return t; 
  }, 
  P: function(){var O = f.O();return (O.substr(0, 3) + ":" + O.substr(3, 2))}, 
  //T not supported yet 
  //Z not supported yet 
  
  // Full Date/Time 
  c: function(){return f.Y() + "-" + f.m() + "-" + f.d() + "T" + f.h() + ":" + f.i() + ":" + f.s() + f.P()}, 
  //r not supported yet 
  U: function(){return Math.round(jsdate.getTime()/1000)} 
 }; 
  
 return format.replace(/[\]"htmlcode">

date('Y-m-d','1350052653');//很方便的将时间戳转换成了2012-10-11 
date('Y-m-d H:i:s','1350052653');//得到的结果是2012-10-12 22:37:33



以上就是js时间戳转为日期格式的方法，希望对大家的学习有所帮助。