服务器端代码

hfCurrentTime.Value = DateTime.Now.ToString();

客户端代码

<script src="../../script/jquery.js" type="text/javascript"></script>
<script type="text/javascript">
    var date;
    $(function(){
         date = new Date(Date.parse($("#hfCurrentTime").val().replace(/-/g, "/")));
         $("#time").text(GetDate(date.getDay()));
         setInterval(function () { $("#currentDate").text(FormatDate("yyyy年MM月dd日 hh:mm:ss")); }, 1000);
     });
     function FormatDate(format) {
            date = new Date(date.valueOf() + 1000);
            var o = {
                "M+": date.getMonth() + 1, //month 
                "d+": date.getDate(), //day 
                "h+": date.getHours(), //hour 
                "m+": date.getMinutes(), //minute 
                "s+": date.getSeconds(), //second 
                "q+": Math.floor((date.getMonth() + 3) / 3), //quarter 
                "S": date.getMilliseconds() //millisecond 
            }

            if (/(y+)/.test(format)) {
                format = format.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length));
            }

            for (var k in o) {
                if (new RegExp("(" + k + ")").test(format)) {
                    format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length));
                }
            }
            return format;
        }
      function GetDate(day) {
            var result = "";
            if (day == 1) result = "星期一";
            else if (day == 2) result = "星期二";
            else if (day == 3) result = "星期三";
            else if (day == 4) result = "星期四";
            else if (day == 5) result = "星期五";
            else if (day == 6) result = "星期六";
            else if (day == 0) result = "星期天";
            return result;
        }
</script>