SOURCE

function writeDocument(variable) {
    document.write(variable + "<br/>");
} 
writeDocument("定义一个时间对象----------------------")
var oToday =new Date();
writeDocument(oToday);

writeDocument("获取时间对象的年、月、日、时、分、秒----------------------")
writeDocument("年："+oToday.getFullYear());
writeDocument("月："+(oToday.getMonth ()+1));
writeDocument("日："+oToday.getDate());
writeDocument("时："+oToday.getHours());
writeDocument("分："+oToday.getMinutes());
writeDocument("秒："+oToday.getSeconds());

writeDocument("设置时间对象的年、月、日、时、分、秒----------------------")
var oMyBirthday=new Date();
oMyBirthday.setFullYear(2019);
oMyBirthday.setMonth(11);
oMyBirthday.setDate(25);
oMyBirthday.setHours(15);
oMyBirthday.setMinutes(05);
oMyBirthday.setSeconds(24,888);
writeDocument(oMyBirthday);

writeDocument("获取星期几---------------------")
writeDocument("今天是星期"+oToday.getDay());
var week=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];
writeDocument("今天是"+week[oToday.getDay()]);


writeDocument("请你打印'今天是2022年3月22日 星期二 8：55'---------");
var oDate = new Date(2022, 3, 22, 8, 55); 
var Day=oToday.getDate();
var Month=oToday.getMonth()+1;
var Year=oToday.getFullYear();
var Week="星期二";
var Hours = oToday.getHours();
var Minutes = oToday.getMinutes();
var Seconds = oToday.getSeconds();
writeDocument("今天是" + Year + "年" + Month + "月" + Day + "日"+Week+Hours+"时"+Minutes+"分"+Seconds+"秒");