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JS获取阴历阳历和星期

news 来源：原创 2024/5/19 0:14:15

获取当前阳历日期时间，阴历日期和星期，三者分开，可自行调整顺序。

新建JS文件getdates.js，代码如下：

/*获取当前阳历日期*/
    function getCurrentDateTime () {
        var d = new Date();
        var year = d.getFullYear();
        var month = d.getMonth() + 1;
        var date = d.getDate();
        /*时分秒*/
        /**********************
         var hours = d.getHours();
         var minutes = d.getMinutes();
         var seconds = d.getSeconds();
         var ms = d.getMilliseconds();
         **************************/
        var curDateTime = year;
        if (month > 9)
            curDateTime = curDateTime + "年" + month;
        else
            curDateTime = curDateTime + "年0" + month;
        if (date > 9)
            curDateTime = curDateTime + "月" + date + "日";
        else
            curDateTime = curDateTime + "月0" + date + "日";
        /**********************************
         if (hours > 9)
         curDateTime = curDateTime + " " + hours;
         else
         curDateTime = curDateTime + " 0" + hours;
         if (minutes > 9)
         curDateTime = curDateTime + ":" + minutes;
         else
         curDateTime = curDateTime + ":0" + minutes;
         if (seconds > 9)
         curDateTime = curDateTime + ":" + seconds;
         else
         curDateTime = curDateTime + ":0" + seconds;
         ***************************************/
        curDateTime = curDateTime + " ";
        return curDateTime;
    }

    /*获取当前是星期几*/
    function showWeek () {
        var show_week = new Array('星期一', '星期二', '星期三', '星期四', '星期五', '星期六', '星期日');
        var time = new Date();
        var day = time.getDay();
        var now_week = show_week[day - 1] + ' ';
        return now_week;
    }

    /*获取当前农历日期*/
    function showCal () {
        var D = new Date();
        var yy = D.getFullYear();
        var mm = D.getMonth() + 1;
        var dd = D.getDate();
        var ww = D.getDay();
        var ss = parseInt(D.getTime() / 1000);
        if (yy < 100) yy = "19" + yy;
        return GetLunarDay(yy, mm, dd);
    }

    //定义全局变量 
    var CalendarData = new Array(100);
    var madd = new Array(12);
    var tgString = "甲乙丙丁戊己庚辛壬癸";
    var dzString = "子丑寅卯辰巳午未申酉戌亥";
    var numString = "一二三四五六七八九十";
    var monString = "正二三四五六七八九十冬腊";
    var weekString = "日一二三四五六";
    var sx = "鼠牛虎兔龙蛇马羊猴鸡狗猪";
    var cYear, cMonth, cDay, TheDate;
    CalendarData = new Array(0xA4B, 0x5164B, 0x6A5, 0x6D4, 0x415B5, 0x2B6, 0x957, 0x2092F, 0x497, 0x60C96, 0xD4A, 0xEA5, 0x50DA9, 0x5AD, 0x2B6, 0x3126E, 0x92E, 0x7192D, 0xC95, 0xD4A, 0x61B4A, 0xB55, 0x56A, 0x4155B, 0x25D, 0x92D, 0x2192B, 0xA95, 0x71695, 0x6CA, 0xB55, 0x50AB5, 0x4DA, 0xA5B, 0x30A57, 0x52B, 0x8152A, 0xE95, 0x6AA, 0x615AA, 0xAB5, 0x4B6, 0x414AE, 0xA57, 0x526, 0x31D26, 0xD95, 0x70B55, 0x56A, 0x96D, 0x5095D, 0x4AD, 0xA4D, 0x41A4D, 0xD25, 0x81AA5, 0xB54, 0xB6A, 0x612DA, 0x95B, 0x49B, 0x41497, 0xA4B, 0xA164B, 0x6A5, 0x6D4, 0x615B4, 0xAB6, 0x957, 0x5092F, 0x497, 0x64B, 0x30D4A, 0xEA5, 0x80D65, 0x5AC, 0xAB6, 0x5126D, 0x92E, 0xC96, 0x41A95, 0xD4A, 0xDA5, 0x20B55, 0x56A, 0x7155B, 0x25D, 0x92D, 0x5192B, 0xA95, 0xB4A, 0x416AA, 0xAD5, 0x90AB5, 0x4BA, 0xA5B, 0x60A57, 0x52B, 0xA93, 0x40E95);
    madd[0] = 0;
    madd[1] = 31;
    madd[2] = 59;
    madd[3] = 90;
    madd[4] = 120;
    madd[5] = 151;
    madd[6] = 181;
    madd[7] = 212;
    madd[8] = 243;
    madd[9] = 273;
    madd[10] = 304;
    madd[11] = 334;

    function GetBit (m, n) {
        return (m >> n) & 1;
    }

    //农历转换 
    function e2c () {
        TheDate = (arguments.length != 3) ? new Date() : new Date(arguments[0], arguments[1], arguments[2]);
        var total, m, n, k;
        var isEnd = false;
        var tmp = TheDate.getYear();
        if (tmp < 1900) {
            tmp += 1900;
        }
        total = (tmp - 1921) * 365 + Math.floor((tmp - 1921) / 4) + madd[TheDate.getMonth()] + TheDate.getDate() - 38;

        if (TheDate.getYear() % 4 == 0 && TheDate.getMonth() > 1) {
            total++;
        }
        for (m = 0; ; m++) {
            k = (CalendarData[m] < 0xfff) ? 11 : 12;
            for (n = k; n >= 0; n--) {
                if (total <= 29 + GetBit(CalendarData[m], n)) {
                    isEnd = true;
                    break;
                }
                total = total - 29 - GetBit(CalendarData[m], n);
            }
            if (isEnd) break;
        }
        cYear = 1921 + m;
        cMonth = k - n + 1;
        cDay = total;
        if (k == 12) {
            if (cMonth == Math.floor(CalendarData[m] / 0x10000) + 1) {
                cMonth = 1 - cMonth;
            }
            if (cMonth > Math.floor(CalendarData[m] / 0x10000) + 1) {
                cMonth--;
            }
        }
    }

    function GetcDateString () {
        var tmp = "";
        /*显示农历年：（ 如：甲午(马)年 ）*/
        /*tmp+=tgString.charAt((cYear-4)%10); 
        tmp+=dzString.charAt((cYear-4)%12); 
        tmp+="("; 
        tmp+=sx.charAt((cYear-4)%12); 
        tmp+=")年 ";*/
        if (cMonth < 1) {
            tmp += "(闰)";
            tmp += monString.charAt(-cMonth - 1);
        } else {
            tmp += monString.charAt(cMonth - 1);
        }
        tmp += "月";
        tmp += (cDay < 11) ? "初" : ((cDay < 20) ? "十" : ((cDay < 30) ? "廿" : "三十"));
        if (cDay % 10 != 0 || cDay == 10) {
            tmp += numString.charAt((cDay - 1) % 10);
        }
        return tmp;
    }

    function GetLunarDay (solarYear, solarMonth, solarDay) {
//solarYear = solarYear<1900?(1900+solarYear):solarYear; 
        if (solarYear < 1921 || solarYear > 2020) {
            return "";
        } else {
            solarMonth = (parseInt(solarMonth) > 0) ? (solarMonth - 1) : 11;
            e2c(solarYear, solarMonth, solarDay);
            return GetcDateString();
        }
    }

    /*显示*/
    $(function () {
        var date = getCurrentDateTime();
        var week = showWeek();
        var calendar = showCal();
        $("#currentDate").text("欢迎您！" + date + "（农历  " + calendar + "）" + week);
    });