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1900年至2100年公历、农历互转Js代码


上述显示的demo简单代码:

$(function () {
    var lunar = calendar.solar2lunar();
    $('.solarlunar').html('<strong>调用代码示例Demo</strong><br />阳历:'+lunar.cYear + '年' +lunar.cMonth +  '月' + lunar.cDay +'日('+lunar.astro+')<br />农历:'+lunar.lYear + '年' +lunar.IMonthCn+lunar.IDayCn+','+lunar.gzYear+'年'+lunar.gzMonth+'月'+lunar.gzDay+'日('+lunar.Animal+'年)');
});

=======

2016-8-15更新:修正天干地支算法,修正农历润大小二进制表数据,添加星座字段astro

2016-9-25更新:修正农历闰月参数判断错误的bug

2017-7-24更新:修正判断是否二十四节气传入参数错误的bug

2021-12-14更新:累积bug修复、格式化、添加demo示例

=======

最近在研究农历、公历的互转算法,墨迹了两三天发现我国农历(太阴历、月亮历)并没有世界通用的公历(太阳历)那么有规律性;我国农历的一些原数据并没有一个固定的算法可以通过程序产生,只能由天文台测定后提供,所以一般的所谓“万年历”都是采用“查表法”获取农历数据而产生的;这也就限定了“万年历”的区间范围。

在网络中找了找相关的素材资料,要么老旧、要么有稍许错误,又把我搞烦了,遂自己写了一个可查询、互转1900年至2100年区间农历与公历的javascript库;本库所有农历数据来源于香港天文台(地址:https://data.weather.gov.hk/gts/time/conversion1_text_c.htm);本来想找紫金山天文台的数据的,结果硬是没找着有200年区间的农历数据的网页。

源数据经过抓取以及匹配获得Js里查表法所需要用的“表”,剩下的就是一些常规的js算法代码了,没什么技术含量;就不多啰嗦了。

GitHub项目地址:https://github.com/jjonline/calendar.js

代码如下(最新代码请以github为准):

/**
* @1900-2100区间内的公历、农历互转
* @charset UTF-8
* @Author  Jea杨(JJonline@JJonline.Cn) 
* @Time    2014-7-21
* @Time    2016-8-13 Fixed 2033hex、Attribution Annals
* @Time    2016-9-25 Fixed lunar LeapMonth Param Bug
* @Time    2017-7-24 Fixed use getTerm Func Param Error.use solar year,NOT lunar year
* @Version 1.0.3
* @公历转农历:calendar.solar2lunar(1987,11,01); //[you can ignore params of prefix 0]
* @农历转公历:calendar.lunar2solar(1987,09,10); //[you can ignore params of prefix 0]
*/
var calendar = {

    /**
      * 农历1900-2100的润大小信息表
      * @Array Of Property
      * @return Hex 
      */
    lunarInfo:[0x04bd8,0x04ae0,0x0a570,0x054d5,0x0d260,0x0d950,0x16554,0x056a0,0x09ad0,0x055d2,//1900-1909
            0x04ae0,0x0a5b6,0x0a4d0,0x0d250,0x1d255,0x0b540,0x0d6a0,0x0ada2,0x095b0,0x14977,//1910-1919
            0x04970,0x0a4b0,0x0b4b5,0x06a50,0x06d40,0x1ab54,0x02b60,0x09570,0x052f2,0x04970,//1920-1929
            0x06566,0x0d4a0,0x0ea50,0x06e95,0x05ad0,0x02b60,0x186e3,0x092e0,0x1c8d7,0x0c950,//1930-1939
            0x0d4a0,0x1d8a6,0x0b550,0x056a0,0x1a5b4,0x025d0,0x092d0,0x0d2b2,0x0a950,0x0b557,//1940-1949
            0x06ca0,0x0b550,0x15355,0x04da0,0x0a5b0,0x14573,0x052b0,0x0a9a8,0x0e950,0x06aa0,//1950-1959
            0x0aea6,0x0ab50,0x04b60,0x0aae4,0x0a570,0x05260,0x0f263,0x0d950,0x05b57,0x056a0,//1960-1969
            0x096d0,0x04dd5,0x04ad0,0x0a4d0,0x0d4d4,0x0d250,0x0d558,0x0b540,0x0b6a0,0x195a6,//1970-1979
            0x095b0,0x049b0,0x0a974,0x0a4b0,0x0b27a,0x06a50,0x06d40,0x0af46,0x0ab60,0x09570,//1980-1989
            0x04af5,0x04970,0x064b0,0x074a3,0x0ea50,0x06b58,0x055c0,0x0ab60,0x096d5,0x092e0,//1990-1999
            0x0c960,0x0d954,0x0d4a0,0x0da50,0x07552,0x056a0,0x0abb7,0x025d0,0x092d0,0x0cab5,//2000-2009
            0x0a950,0x0b4a0,0x0baa4,0x0ad50,0x055d9,0x04ba0,0x0a5b0,0x15176,0x052b0,0x0a930,//2010-2019
            0x07954,0x06aa0,0x0ad50,0x05b52,0x04b60,0x0a6e6,0x0a4e0,0x0d260,0x0ea65,0x0d530,//2020-2029
            0x05aa0,0x076a3,0x096d0,0x04afb,0x04ad0,0x0a4d0,0x1d0b6,0x0d250,0x0d520,0x0dd45,//2030-2039
            0x0b5a0,0x056d0,0x055b2,0x049b0,0x0a577,0x0a4b0,0x0aa50,0x1b255,0x06d20,0x0ada0,//2040-2049
            /**Add By JJonline@JJonline.Cn**/
            0x14b63,0x09370,0x049f8,0x04970,0x064b0,0x168a6,0x0ea50, 0x06b20,0x1a6c4,0x0aae0,//2050-2059
            0x0a2e0,0x0d2e3,0x0c960,0x0d557,0x0d4a0,0x0da50,0x05d55,0x056a0,0x0a6d0,0x055d4,//2060-2069
            0x052d0,0x0a9b8,0x0a950,0x0b4a0,0x0b6a6,0x0ad50,0x055a0,0x0aba4,0x0a5b0,0x052b0,//2070-2079
            0x0b273,0x06930,0x07337,0x06aa0,0x0ad50,0x14b55,0x04b60,0x0a570,0x054e4,0x0d160,//2080-2089
            0x0e968,0x0d520,0x0daa0,0x16aa6,0x056d0,0x04ae0,0x0a9d4,0x0a2d0,0x0d150,0x0f252,//2090-2099
            0x0d520],//2100

    /**
      * 公历每个月份的天数普通表
      * @Array Of Property
      * @return Number 
      */
    solarMonth:[31,28,31,30,31,30,31,31,30,31,30,31],

    /**
      * 天干地支之天干速查表
      * @Array Of Property trans["甲","乙","丙","丁","戊","己","庚","辛","壬","癸"]
      * @return Cn string 
      */
    Gan:["\u7532","\u4e59","\u4e19","\u4e01","\u620a","\u5df1","\u5e9a","\u8f9b","\u58ec","\u7678"],

    /**
      * 天干地支之地支速查表
      * @Array Of Property 
      * @trans["子","丑","寅","卯","辰","巳","午","未","申","酉","戌","亥"]
      * @return Cn string 
      */
    Zhi:["\u5b50","\u4e11","\u5bc5","\u536f","\u8fb0","\u5df3","\u5348","\u672a","\u7533","\u9149","\u620c","\u4ea5"],

    /**
      * 天干地支之地支速查表<=>生肖
      * @Array Of Property 
      * @trans["鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪"]
      * @return Cn string 
      */
    Animals:["\u9f20","\u725b","\u864e","\u5154","\u9f99","\u86c7","\u9a6c","\u7f8a","\u7334","\u9e21","\u72d7","\u732a"],

    /**
      * 24节气速查表
      * @Array Of Property 
      * @trans["小寒","大寒","立春","雨水","惊蛰","春分","清明","谷雨","立夏","小满","芒种","夏至","小暑","大暑","立秋","处暑","白露","秋分","寒露","霜降","立冬","小雪","大雪","冬至"]
      * @return Cn string 
      */
    solarTerm:["\u5c0f\u5bd2","\u5927\u5bd2","\u7acb\u6625","\u96e8\u6c34","\u60ca\u86f0","\u6625\u5206","\u6e05\u660e","\u8c37\u96e8","\u7acb\u590f","\u5c0f\u6ee1","\u8292\u79cd","\u590f\u81f3","\u5c0f\u6691","\u5927\u6691","\u7acb\u79cb","\u5904\u6691","\u767d\u9732","\u79cb\u5206","\u5bd2\u9732","\u971c\u964d","\u7acb\u51ac","\u5c0f\u96ea","\u5927\u96ea","\u51ac\u81f3"],

    /**
      * 1900-2100各年的24节气日期速查表
      * @Array Of Property 
      * @return 0x string For splice
      */
    sTermInfo:['9778397bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e','97bcf97c3598082c95f8c965cc920f',
              '97bd0b06bdb0722c965ce1cfcc920f','b027097bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e',
              '97bcf97c359801ec95f8c965cc920f','97bd0b06bdb0722c965ce1cfcc920f','b027097bd097c36b0b6fc9274c91aa',
              '97b6b97bd19801ec9210c965cc920e','97bcf97c359801ec95f8c965cc920f','97bd0b06bdb0722c965ce1cfcc920f',
              'b027097bd097c36b0b6fc9274c91aa','9778397bd19801ec9210c965cc920e','97b6b97bd19801ec95f8c965cc920f',
              '97bd09801d98082c95f8e1cfcc920f','97bd097bd097c36b0b6fc9210c8dc2','9778397bd197c36c9210c9274c91aa',
              '97b6b97bd19801ec95f8c965cc920e','97bd09801d98082c95f8e1cfcc920f','97bd097bd097c36b0b6fc9210c8dc2',
              '9778397bd097c36c9210c9274c91aa','97b6b97bd19801ec95f8c965cc920e','97bcf97c3598082c95f8e1cfcc920f',
              '97bd097bd097c36b0b6fc9210c8dc2','9778397bd097c36c9210c9274c91aa','97b6b97bd19801ec9210c965cc920e',
              '97bcf97c3598082c95f8c965cc920f','97bd097bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa',
              '97b6b97bd19801ec9210c965cc920e','97bcf97c3598082c95f8c965cc920f','97bd097bd097c35b0b6fc920fb0722',
              '9778397bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e','97bcf97c359801ec95f8c965cc920f',
              '97bd097bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e',
              '97bcf97c359801ec95f8c965cc920f','97bd097bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa',
              '97b6b97bd19801ec9210c965cc920e','97bcf97c359801ec95f8c965cc920f','97bd097bd07f595b0b6fc920fb0722',
              '9778397bd097c36b0b6fc9210c8dc2','9778397bd19801ec9210c9274c920e','97b6b97bd19801ec95f8c965cc920f',
              '97bd07f5307f595b0b0bc920fb0722','7f0e397bd097c36b0b6fc9210c8dc2','9778397bd097c36c9210c9274c920e',
              '97b6b97bd19801ec95f8c965cc920f','97bd07f5307f595b0b0bc920fb0722','7f0e397bd097c36b0b6fc9210c8dc2',
              '9778397bd097c36c9210c9274c91aa','97b6b97bd19801ec9210c965cc920e','97bd07f1487f595b0b0bc920fb0722',
              '7f0e397bd097c36b0b6fc9210c8dc2','9778397bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e',
              '97bcf7f1487f595b0b0bb0b6fb0722','7f0e397bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa',
              '97b6b97bd19801ec9210c965cc920e','97bcf7f1487f595b0b0bb0b6fb0722','7f0e397bd097c35b0b6fc920fb0722',
              '9778397bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e','97bcf7f1487f531b0b0bb0b6fb0722',
              '7f0e397bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e',
              '97bcf7f1487f531b0b0bb0b6fb0722','7f0e397bd07f595b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa',
              '97b6b97bd19801ec9210c9274c920e','97bcf7f0e47f531b0b0bb0b6fb0722','7f0e397bd07f595b0b0bc920fb0722',
              '9778397bd097c36b0b6fc9210c91aa','97b6b97bd197c36c9210c9274c920e','97bcf7f0e47f531b0b0bb0b6fb0722',
              '7f0e397bd07f595b0b0bc920fb0722','9778397bd097c36b0b6fc9210c8dc2','9778397bd097c36c9210c9274c920e',
              '97b6b7f0e47f531b0723b0b6fb0722','7f0e37f5307f595b0b0bc920fb0722','7f0e397bd097c36b0b6fc9210c8dc2',
              '9778397bd097c36b0b70c9274c91aa','97b6b7f0e47f531b0723b0b6fb0721','7f0e37f1487f595b0b0bb0b6fb0722',
              '7f0e397bd097c35b0b6fc9210c8dc2','9778397bd097c36b0b6fc9274c91aa','97b6b7f0e47f531b0723b0b6fb0721',
              '7f0e27f1487f595b0b0bb0b6fb0722','7f0e397bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa',
              '97b6b7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722','7f0e397bd097c35b0b6fc920fb0722',
              '9778397bd097c36b0b6fc9274c91aa','97b6b7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722',
              '7f0e397bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa','97b6b7f0e47f531b0723b0b6fb0721',
              '7f0e27f1487f531b0b0bb0b6fb0722','7f0e397bd07f595b0b0bc920fb0722','9778397bd097c36b0b6fc9274c91aa',
              '97b6b7f0e47f531b0723b0787b0721','7f0e27f0e47f531b0b0bb0b6fb0722','7f0e397bd07f595b0b0bc920fb0722',
              '9778397bd097c36b0b6fc9210c91aa','97b6b7f0e47f149b0723b0787b0721','7f0e27f0e47f531b0723b0b6fb0722',
              '7f0e397bd07f595b0b0bc920fb0722','9778397bd097c36b0b6fc9210c8dc2','977837f0e37f149b0723b0787b0721',
              '7f07e7f0e47f531b0723b0b6fb0722','7f0e37f5307f595b0b0bc920fb0722','7f0e397bd097c35b0b6fc9210c8dc2',
              '977837f0e37f14998082b0787b0721','7f07e7f0e47f531b0723b0b6fb0721','7f0e37f1487f595b0b0bb0b6fb0722',
              '7f0e397bd097c35b0b6fc9210c8dc2','977837f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721',
              '7f0e27f1487f531b0b0bb0b6fb0722','7f0e397bd097c35b0b6fc920fb0722','977837f0e37f14998082b0787b06bd',
              '7f07e7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722','7f0e397bd097c35b0b6fc920fb0722',
              '977837f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722',
              '7f0e397bd07f595b0b0bc920fb0722','977837f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721',
              '7f0e27f1487f531b0b0bb0b6fb0722','7f0e397bd07f595b0b0bc920fb0722','977837f0e37f14998082b0787b06bd',
              '7f07e7f0e47f149b0723b0787b0721','7f0e27f0e47f531b0b0bb0b6fb0722','7f0e397bd07f595b0b0bc920fb0722',
              '977837f0e37f14998082b0723b06bd','7f07e7f0e37f149b0723b0787b0721','7f0e27f0e47f531b0723b0b6fb0722',
              '7f0e397bd07f595b0b0bc920fb0722','977837f0e37f14898082b0723b02d5','7ec967f0e37f14998082b0787b0721',
              '7f07e7f0e47f531b0723b0b6fb0722','7f0e37f1487f595b0b0bb0b6fb0722','7f0e37f0e37f14898082b0723b02d5',
              '7ec967f0e37f14998082b0787b0721','7f07e7f0e47f531b0723b0b6fb0722','7f0e37f1487f531b0b0bb0b6fb0722',
              '7f0e37f0e37f14898082b0723b02d5','7ec967f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721',
              '7f0e37f1487f531b0b0bb0b6fb0722','7f0e37f0e37f14898082b072297c35','7ec967f0e37f14998082b0787b06bd',
              '7f07e7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722','7f0e37f0e37f14898082b072297c35',
              '7ec967f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722',
              '7f0e37f0e366aa89801eb072297c35','7ec967f0e37f14998082b0787b06bd','7f07e7f0e47f149b0723b0787b0721',
              '7f0e27f1487f531b0b0bb0b6fb0722','7f0e37f0e366aa89801eb072297c35','7ec967f0e37f14998082b0723b06bd',
              '7f07e7f0e47f149b0723b0787b0721','7f0e27f0e47f531b0723b0b6fb0722','7f0e37f0e366aa89801eb072297c35',
              '7ec967f0e37f14998082b0723b06bd','7f07e7f0e37f14998083b0787b0721','7f0e27f0e47f531b0723b0b6fb0722',
              '7f0e37f0e366aa89801eb072297c35','7ec967f0e37f14898082b0723b02d5','7f07e7f0e37f14998082b0787b0721',
              '7f07e7f0e47f531b0723b0b6fb0722','7f0e36665b66aa89801e9808297c35','665f67f0e37f14898082b0723b02d5',
              '7ec967f0e37f14998082b0787b0721','7f07e7f0e47f531b0723b0b6fb0722','7f0e36665b66a449801e9808297c35',
              '665f67f0e37f14898082b0723b02d5','7ec967f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721',
              '7f0e36665b66a449801e9808297c35','665f67f0e37f14898082b072297c35','7ec967f0e37f14998082b0787b06bd',
              '7f07e7f0e47f531b0723b0b6fb0721','7f0e26665b66a449801e9808297c35','665f67f0e37f1489801eb072297c35',
              '7ec967f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722'],

    /**
      * 数字转中文速查表
      * @Array Of Property 
      * @trans ['日','一','二','三','四','五','六','七','八','九','十']
      * @return Cn string 
      */
    nStr1:["\u65e5","\u4e00","\u4e8c","\u4e09","\u56db","\u4e94","\u516d","\u4e03","\u516b","\u4e5d","\u5341"],

    /**
      * 日期转农历称呼速查表
      * @Array Of Property 
      * @trans ['初','十','廿','卅']
      * @return Cn string 
      */
    nStr2:["\u521d","\u5341","\u5eff","\u5345"],

    /**
      * 月份转农历称呼速查表
      * @Array Of Property 
      * @trans ['正','一','二','三','四','五','六','七','八','九','十','冬','腊']
      * @return Cn string 
      */
    nStr3:["\u6b63","\u4e8c","\u4e09","\u56db","\u4e94","\u516d","\u4e03","\u516b","\u4e5d","\u5341","\u51ac","\u814a"],

    /**
      * 返回农历y年一整年的总天数
      * @param lunar Year
      * @return Number
      * @eg:var count = calendar.lYearDays(1987) ;//count=387
      */
    lYearDays:function(y) {
        var i, sum = 348;
        for(i=0x8000; i>0x8; i>>=1) { sum += (calendar.lunarInfo[y-1900] & i)? 1: 0; }
        return(sum+calendar.leapDays(y));
    },

    /**
      * 返回农历y年闰月是哪个月;若y年没有闰月 则返回0
      * @param lunar Year
      * @return Number (0-12)
      * @eg:var leapMonth = calendar.leapMonth(1987) ;//leapMonth=6
      */
    leapMonth:function(y) { //闰字编码 \u95f0
        return(calendar.lunarInfo[y-1900] & 0xf);
    },

    /**
      * 返回农历y年闰月的天数 若该年没有闰月则返回0
      * @param lunar Year
      * @return Number (0、29、30)
      * @eg:var leapMonthDay = calendar.leapDays(1987) ;//leapMonthDay=29
      */
    leapDays:function(y) {
        if(calendar.leapMonth(y))  { 
            return((calendar.lunarInfo[y-1900] & 0x10000)? 30: 29); 
        }
        return(0);
    },

    /**
      * 返回农历y年m月(非闰月)的总天数,计算m为闰月时的天数请使用leapDays方法
      * @param lunar Year
      * @return Number (-1、29、30)
      * @eg:var MonthDay = calendar.monthDays(1987,9) ;//MonthDay=29
      */
    monthDays:function(y,m) {
        if(m>12 || m<1) {return -1}//月份参数从1至12,参数错误返回-1
        return( (calendar.lunarInfo[y-1900] & (0x10000>>m))? 30: 29 );
    },

    /**
      * 返回公历(!)y年m月的天数
      * @param solar Year
      * @return Number (-1、28、29、30、31)
      * @eg:var solarMonthDay = calendar.leapDays(1987) ;//solarMonthDay=30
      */
    solarDays:function(y,m) {
        if(m>12 || m<1) {return -1} //若参数错误 返回-1
        var ms = m-1;
        if(ms==1) { //2月份的闰平规律测算后确认返回28或29
            return(((y%4 == 0) && (y%100 != 0) || (y%400 == 0))? 29: 28);
        }else {
            return(calendar.solarMonth[ms]);
        }
    },

    /**
     * 农历年份转换为干支纪年
     * @param  lYear 农历年的年份数
     * @return Cn string
     */
    toGanZhiYear:function(lYear) {
        var ganKey = (lYear - 3) % 10;
        var zhiKey = (lYear - 3) % 12;
        if(ganKey == 0) ganKey = 10;//如果余数为0则为最后一个天干
        if(zhiKey == 0) zhiKey = 12;//如果余数为0则为最后一个地支
        return calendar.Gan[ganKey-1] + calendar.Zhi[zhiKey-1];
        
    },

    /**
     * 公历月、日判断所属星座
     * @param  cMonth [description]
     * @param  cDay [description]
     * @return Cn string
     */
    toAstro:function(cMonth,cDay) {
        var s   = "\u9b54\u7faf\u6c34\u74f6\u53cc\u9c7c\u767d\u7f8a\u91d1\u725b\u53cc\u5b50\u5de8\u87f9\u72ee\u5b50\u5904\u5973\u5929\u79e4\u5929\u874e\u5c04\u624b\u9b54\u7faf";
        var arr = [20,19,21,21,21,22,23,23,23,23,22,22];
        return s.substr(cMonth*2 - (cDay < arr[cMonth-1] ? 2 : 0),2) + "\u5ea7";//座
    },

    /**
      * 传入offset偏移量返回干支
      * @param offset 相对甲子的偏移量
      * @return Cn string
      */
    toGanZhi:function(offset) {
        return calendar.Gan[offset%10] + calendar.Zhi[offset%12];
    },

    /**
      * 传入公历(!)y年获得该年第n个节气的公历日期
      * @param y公历年(1900-2100);n二十四节气中的第几个节气(1~24);从n=1(小寒)算起 
      * @return day Number
      * @eg:var _24 = calendar.getTerm(1987,3) ;//_24=4;意即1987年2月4日立春
      */
    getTerm:function(y,n) {
        if(y<1900 || y>2100) {return -1;}
        if(n<1 || n>24) {return -1;}
        var _table = calendar.sTermInfo[y-1900];
        var _info = [
            parseInt('0x'+_table.substr(0,5)).toString() ,
            parseInt('0x'+_table.substr(5,5)).toString(),
            parseInt('0x'+_table.substr(10,5)).toString(),
            parseInt('0x'+_table.substr(15,5)).toString(),
            parseInt('0x'+_table.substr(20,5)).toString(),
            parseInt('0x'+_table.substr(25,5)).toString()
        ];
        var _calday = [
            _info[0].substr(0,1),
            _info[0].substr(1,2),
            _info[0].substr(3,1),
            _info[0].substr(4,2),
            
            _info[1].substr(0,1),
            _info[1].substr(1,2),
            _info[1].substr(3,1),
            _info[1].substr(4,2),
            
            _info[2].substr(0,1),
            _info[2].substr(1,2),
            _info[2].substr(3,1),
            _info[2].substr(4,2),
            
            _info[3].substr(0,1),
            _info[3].substr(1,2),
            _info[3].substr(3,1),
            _info[3].substr(4,2),
            
            _info[4].substr(0,1),
            _info[4].substr(1,2),
            _info[4].substr(3,1),
            _info[4].substr(4,2),
            
            _info[5].substr(0,1),
            _info[5].substr(1,2),
            _info[5].substr(3,1),
            _info[5].substr(4,2),
        ];
        return parseInt(_calday[n-1]);
    },

    /**
      * 传入农历数字月份返回汉语通俗表示法
      * @param lunar month
      * @return Cn string
      * @eg:var cnMonth = calendar.toChinaMonth(12) ;//cnMonth='腊月'
      */
    toChinaMonth:function(m) { // 月 => \u6708
        if(m>12 || m<1) {return -1} //若参数错误 返回-1
        var s = calendar.nStr3[m-1];
        s+= "\u6708";//加上月字
        return s;
    },

    /**
      * 传入农历日期数字返回汉字表示法
      * @param lunar day
      * @return Cn string
      * @eg:var cnDay = calendar.toChinaDay(21) ;//cnMonth='廿一'
      */
    toChinaDay:function(d){ //日 => \u65e5
        var s;
        switch (d) {
            case 10:
            s = '\u521d\u5341'; break;
        case 20:
            s = '\u4e8c\u5341'; break;
            break;
        case 30:
            s = '\u4e09\u5341'; break;
            break;
        default :
            s = calendar.nStr2[Math.floor(d/10)];
            s += calendar.nStr1[d%10];
        }
        return(s);
    },

    /**
      * 年份转生肖[!仅能大致转换] => 精确划分生肖分界线是“立春”
      * @param y year
      * @return Cn string
      * @eg:var animal = calendar.getAnimal(1987) ;//animal='兔'
      */
    getAnimal: function(y) {
        return calendar.Animals[(y - 4) % 12]
    },

    /**
      * 传入阳历年月日获得详细的公历、农历object信息 <=>JSON
      * @param y  solar year
      * @param m  solar month
      * @param d  solar day
      * @return JSON object
      * @eg:console.log(calendar.solar2lunar(1987,11,01));
      */
    solar2lunar:function (y,m,d) { //参数区间1900.1.31~2100.12.31
        //年份限定、上限
        if(y<1900 || y>2100) {
            return -1;// undefined转换为数字变为NaN
        }
        //公历传参最下限
        if(y==1900&&m==1&&d<31) {
            return -1;
        }
        //未传参  获得当天
        if(!y) {
            var objDate = new Date();
        }else {
            var objDate = new Date(y,parseInt(m)-1,d)
        }
        var i, leap=0, temp=0;
        //修正ymd参数
        var y = objDate.getFullYear(),
            m = objDate.getMonth()+1,
            d = objDate.getDate();
        var offset = (Date.UTC(objDate.getFullYear(),objDate.getMonth(),objDate.getDate()) - Date.UTC(1900,0,31))/86400000;
        for(i=1900; i<2101 && offset>0; i++) {
            temp    = calendar.lYearDays(i);
            offset -= temp;
        }
        if(offset<0) {
            offset+=temp; i--;
        }
        
        //是否今天
        var isTodayObj = new Date(),
            isToday    = false;
        if(isTodayObj.getFullYear()==y && isTodayObj.getMonth()+1==m && isTodayObj.getDate()==d) {
            isToday = true;
        }
        //星期几
        var nWeek = objDate.getDay(),
           cWeek  = calendar.nStr1[nWeek];
        //数字表示周几顺应天朝周一开始的惯例
        if(nWeek==0) {
            nWeek = 7;
        }
        //农历年
        var year   = i;
        var leap   = calendar.leapMonth(i); //闰哪个月
        var isLeap = false;
        
        //效验闰月
        for(i=1; i<13 && offset>0; i++) {
            //闰月
            if(leap>0 && i==(leap+1) && isLeap==false){ 
                --i;
                isLeap = true; temp = calendar.leapDays(year); //计算农历闰月天数
            }
            else{
                temp = calendar.monthDays(year, i);//计算农历普通月天数
            }
            //解除闰月
            if(isLeap==true && i==(leap+1)) { isLeap = false; }
            offset -= temp;
        }
        // 闰月导致数组下标重叠取反
        if(offset==0 && leap>0 && i==leap+1)
        {
            if(isLeap){
                isLeap = false;
            }else{ 
                isLeap = true; --i;
            }
        }
        if(offset<0)
        {
            offset += temp; --i;
        }
        //农历月
        var month      = i;
        //农历日
        var day        = offset + 1;
        //天干地支处理
        var sm         = m-1;
        var gzY        = calendar.toGanZhiYear(year);
        
        // 当月的两个节气
        // bugfix-2017-7-24 11:03:38 use lunar Year Param `y` Not `year`
        var firstNode  = calendar.getTerm(y,(m*2-1));//返回当月「节」为几日开始
        var secondNode = calendar.getTerm(y,(m*2));//返回当月「节」为几日开始

        // 依据12节气修正干支月
        var gzM        = calendar.toGanZhi((y-1900)*12+m+11);
        if(d>=firstNode) {
            gzM        = calendar.toGanZhi((y-1900)*12+m+12);
        }
        
        //传入的日期的节气与否
        var isTerm = false;
        var Term   = null;
        if(firstNode==d) {
            isTerm  = true;
            Term    = calendar.solarTerm[m*2-2];
        }
        if(secondNode==d) {
            isTerm  = true;
            Term    = calendar.solarTerm[m*2-1];
        }
        //日柱 当月一日与 1900/1/1 相差天数
        var dayCyclical = Date.UTC(y,sm,1,0,0,0,0)/86400000+25567+10;
        var gzD         = calendar.toGanZhi(dayCyclical+d-1);
        //该日期所属的星座
        var astro       = calendar.toAstro(m,d);
        
        return {'lYear':year,'lMonth':month,'lDay':day,'Animal':calendar.getAnimal(year),'IMonthCn':(isLeap?"\u95f0":'')+calendar.toChinaMonth(month),'IDayCn':calendar.toChinaDay(day),'cYear':y,'cMonth':m,'cDay':d,'gzYear':gzY,'gzMonth':gzM,'gzDay':gzD,'isToday':isToday,'isLeap':isLeap,'nWeek':nWeek,'ncWeek':"\u661f\u671f"+cWeek,'isTerm':isTerm,'Term':Term,'astro':astro};
    },

    /**
      * 传入农历年月日以及传入的月份是否闰月获得详细的公历、农历object信息 <=>JSON
      * @param y  lunar year
      * @param m  lunar month
      * @param d  lunar day
      * @param isLeapMonth  lunar month is leap or not.[如果是农历闰月第四个参数赋值true即可]
      * @return JSON object
      * @eg:console.log(calendar.lunar2solar(1987,9,10));
      */
    lunar2solar:function(y,m,d,isLeapMonth) {   //参数区间1900.1.31~2100.12.1
        var isLeapMonth = !!isLeapMonth;
        var leapOffset  = 0;
        var leapMonth   = calendar.leapMonth(y);
        var leapDay     = calendar.leapDays(y);
        if(isLeapMonth&&(leapMonth!=m)) {return -1;}//传参要求计算该闰月公历 但该年得出的闰月与传参的月份并不同
        if(y==2100&&m==12&&d>1 || y==1900&&m==1&&d<31) {return -1;}//超出了最大极限值 
        var day  = calendar.monthDays(y,m); 
        var _day = day;
        //bugFix 2016-9-25 
        //if month is leap, _day use leapDays method 
        if(isLeapMonth) {
            _day = calendar.leapDays(y,m);
        }
        if(y < 1900 || y > 2100 || d > _day) {return -1;}//参数合法性效验
        
        //计算农历的时间差
        var offset = 0;
        for(var i=1900;i<y;i++) {
            offset+=calendar.lYearDays(i);
        }
        var leap = 0,isAdd= false;
        for(var i=1;i<m;i++) {
            leap = calendar.leapMonth(y);
            if(!isAdd) {//处理闰月
                if(leap<=i && leap>0) {
                    offset+=calendar.leapDays(y);isAdd = true;
                }
            }
            offset+=calendar.monthDays(y,i);
        }
        //转换闰月农历 需补充该年闰月的前一个月的时差
        if(isLeapMonth) {offset+=day;}
        //1900年农历正月一日的公历时间为1900年1月30日0时0分0秒(该时间也是本农历的最开始起始点)
        var stmap   =   Date.UTC(1900,1,30,0,0,0);
        var calObj  =   new Date((offset+d-31)*86400000+stmap);
        var cY      =   calObj.getUTCFullYear();
        var cM      =   calObj.getUTCMonth()+1;
        var cD      =   calObj.getUTCDate();

        return calendar.solar2lunar(cY,cM,cD);
    }
};

由于源数据较多,文件未压缩就达到了22kb,还凑合吧~ 

调用方法,详细本文开头的Demo示例已经很清楚了吧~还是大致讲解下:

/**公历年月日转农历数据 返回json**/
calendar.solar2lunar(1987,11,01);
/**农历年月日转公历年月日**/
calendar.lunar2solar(1987,9,10);
//调用以上方法后返回类似如下object(json)具体以上就不需要解释了吧!
//c开头的是公历各属性值 l开头的自然就是农历咯 gz开头的就是天干地支纪年的数据啦~
{
 Animal: "兔",
 IDayCn: "初十",
 IMonthCn: "九月",
 Term: null,
 astro: "天蝎座",
 cDay: 1,
 cMonth: 11,
 cYear: 1987,
 gzDay: "甲寅",
 gzMonth: "庚戌",
 gzYear: "丁卯",
 isLeap: false,
 isTerm: false,
 isToday: false,
 lDay: 10,
 lMonth: 9,
 lYear: 1987,
 nWeek: 7,
 ncWeek: "星期日"
}
//该代码还有其他可以调用的方法,请自己查看代码中的详细注释

有朋友在问这个库其他几个方法的调用方法和机制,请浏览一遍评论中鄙人的回复内容。然后关于二十四节气表数据,这里大致介绍下逻辑:24节气很有规律,因为是将地球绕太阳公转划分24等分后确定的二十四个时间点即为二十四节气,而阳历又是地球绕太阳公转一周来划分年份的,所以从小寒算起阳历月的月份和二十四节气的顺序是一一对应的或者说有关联关系的(这块儿详见相关评论中的回复内容),阳历中每个月有两个节气,而且每个月这两个节气上半月节气阳历日必定是1位数,下半个月的阳历日必定为2位数;所以呢从1至12月每2个月的四个节气的阳历日数据拼接成一个长度为5的十进制数,将这个十进制数转换为16进制(去除开头的0x长度依然是5),这样一年就有6组数据,将这6组数据拼接之后就形成了sTermInfo这个数组变量的元素(字符串形式);也就是说sTermInfo记录了1900-2100整整两百年的每一年的二十四节气的所在的日数据,用的时候转换回来即可。这种记录二十四节气阳历日数据的方法是我所设定的,这样做的目的是为了减少表数据量。

转载请注明本文标题和链接:《1900年至2100年公历、农历互转Js代码

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哟嚯,本文评论功能关闭啦~

  1. #21

    十一月会显示元旦节气的bug 可以帮忙看一下吗,感谢

    佳多多哒 6年前 (2018-12-11) 回复
    • @佳多多哒:给出具体的bug日期,或者节气数据有问题的日期,谢谢~

      晶晶 6年前 (2018-12-13) 回复
  2. #22

    1996年农历月份大小有错,0x05ac0为正确的,大部分的日历都有这个问题

    紫仓 6年前 (2018-11-26) 回复
    • @紫仓:github上应该是你提的issue吧?你可以fork一份,改好了提交commit并测试一下,然后提交一个pull request,谢谢

      晶晶 6年前 (2018-12-13) 回复
      • @晶晶:我还发现一个问题但是不知道该怎么修改呢?其实年份的天干地支也是按节气走的,但是实际年份是按过年走的是错误的。

        紫仓 6年前 (2019-01-02) 回复
        • @紫仓:历史评论和回复里会有一些说明,天干地支的计算准则有多套,以哪个为准的问题

          晶晶 6年前 (2019-01-02)
      • @晶晶:是的,计算方法是有多种,但是按古时的标准都是按照立春来计算的,算命的也是按立春计算的,很多一些万年历都是按照立春来计算的,最标准的可以参考百度万年历。

        紫仓 6年前 (2019-01-03) 回复
        • @紫仓:农历正常按立春开始算新的一年,新的属相。这个问题,作者有修改的计划吗?@晶晶@紫仓

          newman 6年前 (2019-05-05)
        • @紫仓:这个已经改过一次了,14年最开始的版本是按纯粹的历史上农历分隔日立春来的,后来为了契合天朝春节分隔的约定成俗的标准改成了春节,这个不计划再次变更了。
          后续有空的时候可以考虑做成可配置的,自己配置分隔日

          晶晶 6年前 (2019-05-05)
  3. #23

    节假日 怎么加呢

    呀呀呀 6年前 (2018-11-06) 回复
    • @呀呀呀:有空的时候可以考虑加上天朝传统节日和国际大型节日,有些国外宗教性质的节日不予考虑

      晶晶 6年前 (2019-05-05) 回复
  4. #24

    有考虑加入节假日的吗

    心在飞 6年前 (2018-10-09) 回复
  5. #25

    代码写得太好了!非常感谢!

    Rohar 6年前 (2018-08-04) 回复
  6. #26

    星座计算应该采用公历计算方式,获取当前经纬度判断时区,获取准确时间。然后拿这个时间作为农历的基准时间。

    moon 6年前 (2018-07-30) 回复
  7. #27

    這真的是超棒的 農曆的換轉程式....  但是..建議拿掉星座的部分...一來這有點超出一般使用需求 二來是 有些誤差....
    雖然目前用的農曆以定氣置潤而非平氣,但是誤差到日為單位尚能維持精準度,但星座不同 黃道星座轉換是確確實實的採用定氣法 超過某一瞬間(意即太陽經過某一黃道度數) 就是轉換了,若不能精確取得太陽的黃經度數,建議還是把星座部分拿掉,免得吃力不討好(在節的交界日 星座判斷的誤差會不小)    
    雖有上述問題但是主功能部分還是    瑕不掩玉

    俺打醬油的 6年前 (2018-07-30) 回复
  8. #28

    多年后,我也发现了作者说的问题,感触良多

    没想好 6年前 (2018-07-12) 回复
  9. #29

    中国科学院紫金山天文台万年历 http://www.irgrid.ac.cn/handle/1471x/956215/browse?type=dateissued

    流年 7年前 (2018-06-30) 回复
  10. #30

    楼主好棒 ,这么好的文章 应该弄个打赏页面啊

    sds 7年前 (2018-06-08) 回复
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