看到这个。 $.now()方法是表达式(new Date). gettime()返回的数字的简写。

当元素只有一个符号时，该对象设0:

function addZero(i) {
    if (i < 10) {
        i = "0" + i;
    }
    return i;
}

该对象设置实际的完整时间，小时和日期:

function getActualFullDate() {
    var d = new Date();
    var day = addZero(d.getDate());
    var month = addZero(d.getMonth()+1);
    var year = addZero(d.getFullYear());
    var h = addZero(d.getHours());
    var m = addZero(d.getMinutes());
    var s = addZero(d.getSeconds());
    return day + ". " + month + ". " + year + " (" + h + ":" + m + ")";
}

function getActualHour() {
    var d = new Date();
    var h = addZero(d.getHours());
    var m = addZero(d.getMinutes());
    var s = addZero(d.getSeconds());
    return h + ":" + m + ":" + s;
}

function getActualDate() {
    var d = new Date();
    var day = addZero(d.getDate());
    var month = addZero(d.getMonth()+1);
    var year = addZero(d.getFullYear());
    return day + ". " + month + ". " + year;
}

HTML:

<span id='full'>a</span>
<br>
<span id='hour'>b</span>
<br>    
<span id='date'>c</span>

JQUERY的观点:

$(document).ready(function(){
    $("#full").html(getActualFullDate());
    $("#hour").html(getActualHour());
    $("#date").html(getActualDate());
});

例子

jQuery就是JavaScript。使用Javascript日期对象。

var d = new Date();
var strDate = d.getFullYear() + "/" + (d.getMonth()+1) + "/" + d.getDate();

供你参考——getDay()会告诉你星期几…即:如果今天是星期四，它将返回数字4(是一周的第4天)。

使用getDate()来获取一个月中的某一天。

下面是我的例子……(也是一个字符串填充函数，在单个时间元素上给出前导0。(例如:10:4:34 => 10:04:35)

function strpad00(s)
{
    s = s + '';
    if (s.length === 1) s = '0'+s;
    return s;
}

var currentdate = new Date();
var datetime = currentdate.getDate() 
    + "/" + strpad00((currentdate.getMonth()+1)) 
    + "/" + currentdate.getFullYear() 
    + " @ " 
    + currentdate.getHours() + ":" 
    + strpad00(currentdate.getMinutes()) + ":" 
    + strpad00(currentdate.getSeconds());

示例输出:31/12/2013 @ 10:07:49如果使用getDay()，输出将是4/12/2013 @ 10:07:49

var d = new Date();
var month = d.getMonth() + 1;
var day = d.getDate();
var year = d.getYear();
var today = (day<10?'0':'')+ day + '/' +(month<10?'0':'')+ month + '/' + year;
alert(today);

使用纯Javascript，你可以创建自己的YYYYMMDD格式原型;

Date.prototype.yyyymmdd = function() {
  var yyyy = this.getFullYear().toString();
  var mm = (this.getMonth()+1).toString(); // getMonth() is zero-based
  var dd  = this.getDate().toString();
  return yyyy + "/" + (mm[1]?mm:"0"+mm[0]) + "/" + (dd[1]?dd:"0"+dd[0]); // padding
};

var date = new Date();
console.log( date.yyyymmdd() ); // Assuming you have an open console