SOURCE

function writeDocument(variable) {
    document.write(variable + "<br/>");
}

writeDocument("定义时间对象-----------------------------------------------------------");
var oToday = new Date();

writeDocument("获取年，月，日，时，分，秒，毫秒-----------------------------------------");
writeDocument("年：" + oToday.getFullYear());
writeDocument("月：" + oToday.getMonth());
writeDocument("日：" + oToday.getDate());
writeDocument("时：" + oToday.getHours());
writeDocument("分：" + oToday.getMinutes());
writeDocument("秒：" + oToday.getSeconds());
writeDocument("毫秒：" + oToday.getMilliseconds() + "<br/>");

writeDocument("设置年，月，日，时，分，秒，毫秒----------------------------------------");
var oDate = new Date(2022);

oDate.setFullYear(2024);
writeDocument("年：" + oDate.getFullYear());
oDate.setMonth(01);
writeDocument("月：" + oDate.getMonth());
oDate.setDate(24);
writeDocument("日：" + oDate.getDate());
oDate.setHours(22);
writeDocument("时：" + oDate.getHours());
oDate.setMinutes(00);
writeDocument("分：" + oDate.getMinutes());
oDate.setSeconds(00);
writeDocument("秒：" + oDate.getSeconds());
oDate.setMilliseconds(02);
writeDocument("毫秒：" + oDate.getMilliseconds() + "<br/>");

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()] + "<br/>");

var oPrintDate = new Date(2022,03,23,22,00,02,06);
writeDocument("打印2022年6月1日 星期六 15:59:59:99------------------------------------");