程式碼如下：

<script>
    
function CurentTime()
    { 
        var now = new Date();
        
        var year = now.getFullYear();       //年
        var month = now.getMonth() + 1;     //月
        var day = now.getDate();            //日
        
        var hh = now.getHours();            //時
        var mm = now.getMinutes();          //分
        var ss = now.getSeconds();           //秒
        
        var clock = year + "-";
        
        if(month < 10)
            clock += "0";
        
        clock += month + "-";
        
        if(day < 10)
            clock += "0";
            
        clock += day + " ";
        
        if(hh < 10)
            clock += "0";
            
        clock += hh + ":";
        if (mm < 10) clock += '0'; 
        clock += mm + ":"; 
         
        if (ss < 10) clock += '0'; 
        clock += ss; 
        return(clock); 
}

 alert(CurentTime());
</script>
 

dateObj.getTime()得到時間,
dateObj.getYear()得到年份,
dateObj.getFullYear()得到四位的年份,
dateObj.getMonth()得到月份,
dateObj.getDate()得到日,
dateObj.getDay()得到日期幾,
dateObj.getHours()得到小時,
dateObj.getMinutes()得到分,
dateObj.getSeconds()得到秒,
dateObj.setTime(value)設定時間,
dateObj.setYear(val)設定年,
dateObj.setMonth(val)設定月,
dateObj.setDate(val)設定日,
dateObj.setDay(val)設定星期幾,
dateObj.setHours設定小時,
dateObj.setMinutes(val)設定分,
dateObj.setSeconds(val)設定秒 [注意:此日期時間從0開始計]