1. UTC时间转换为标准时间

   //UTC时间转换为标准时间        function Todate(num) {            num = num + "";            var date = "";            var month = new Array();            month["Jan"] = 1; month["Feb"] = 2; month["Mar"] = 3; month["Apr"] = 4; month["May"] = 5; month["Jan"] = 6;            month["Jul"] = 7; month["Aug"] = 8; month["Sep"] = 9; month["Oct"] = 10; month["Nov"] = 11; month["Dec"] = 12;            var week = new Array();            week["Mon"] = "一"; week["Tue"] = "二"; week["Wed"] = "三"; week["Thu"] = "四"; week["Fri"] = "五"; week["Sat"] = "六"; week["Sun"] = "日";            str = num.split(" ");            date = str[5] + "-";            //str[3] 时间            date = date + month[str[1]] + "-" + str[2] + " " + str[3];            return date;        }
2. 123
3. 日期对象也可用于比较两个日期。

4. var d=new Date();

   d.setFullYear(2008,7,9);

   //表示月份的参数介于 0 到 11 之间。也就是说，如果希望把月设置为 8 月，则参数应该是 7。

    

   var myDate=new Date()

   myDate.setDate(myDate.getDate()+5)