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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

=======

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:http://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。

JS文件地址:http://www.jjonline.cn/Public/Js/calendar.js (更新文章比较麻烦,以该文件代码为准,其他信息请参考文章评论中的回复)

代码如下:

/**
* @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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路人甲 表情
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  1. #1

    用了你的代码做了一个日期农历控件,地址:https://github.com/tuhe32/vue-jLunar-datePicker,万分感谢,2018.2.3立春还有2017.1.5庚子月,如已更新,万望分享一份。再次感谢

    hellsar 4周前 (09-18) 回复
    • @hellsar:厉害
      看了下你的github里的代码,用的还是比较老的版本,后来修正过一些bug,文章中有js文件的链接,以该js文件为准,文章正文中的代码更新比较麻烦,可能还比较老。24节气的表数据来源于香港天文台,不会有错,严格来说24节气是一个时刻,并不是某一天,你说3号也行4号也没问题;天干地支的话测算方法和规则较多,不同的规则有不同结果,这个不再调整了。

      晶晶 4周前 (09-20) 回复
      • @晶晶:谢谢!还有就是农历12月的天数,得到的2016-2019年都是29天,所以除夕的判断就不准确,我只能利用11月进行修正。不知为何?很快会更新到2.0,可以选择时间段;再次感谢

        hellsar 4周前 (09-20) 回复
      • @晶晶:新的脚本更新后,大部分bug都修正了。十分感谢!~

        hellsar 4周前 (09-20) 回复
  2. #2

    今天2017-8-1转成农历为:2017-6-10,但是农历转公历solar = calendar.lunar2solar(2017,6,10);  这样转成公历不是2017-8-1呢,是不是没考虑润2个月的问题?

    gxnnlj6 3个月前 (08-01) 回复
    • @gxnnlj6:var solar = calendar.lunar2solar(2017,6,10,true);
      [如果是农历闰月第四个参数赋值true即可]
      这样输出是正确的,那我怎么判断是否为农历闰月?感谢指导,先谢谢了!

      gxnnlj6 3个月前 (08-01) 回复
    • @gxnnlj6:公历转为农历。如果isLeap为true表示为润月。如我只知道农历,比如2017-6-10,怎么知道是否要加第四个参数为true?

      gxnnlj6 3个月前 (08-01) 回复
      • @gxnnlj6:你这是个伪需求,既然要农历转成公历,肯定事先必须要知道需要转成公历的农历具体日期,需要被转换的农历日期都不清楚的话调用calendar.lunar2solar方法的前提就不存在了;就跟公历转农历calendar.solar2lunar是一样的道理,调用方法之前你必须知道需要转成农历的公历具体日期。提供有calendar.leapMonth方法,该方法查询该农历年的闰月月份

        晶晶 3个月前 (08-02) 回复
  3. #3

    /**
          * 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
          */
    我测试得到的是384天,是哪里出了问题?

    1024 3个月前 (07-28) 回复
    • @1024:我测到的也是384天

      1024 3个月前 (07-31) 回复
      • @1024:注释而已,注释中的问题已经是各位网友第二次提出来那~

        晶晶 3个月前 (07-31) 回复
  4. #4

    for(i=0x8000; i>0x8; i>>=1) {   这里计算农历y年一整年的总天数的时候i的初始值0x8000,百度到的32768,还有i>>=1,不懂这里的算法

    1024 3个月前 (07-28) 回复
    • @1024:16进制位运算,语法方面不再赘述,参考MDN:https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Bitwise_Operators  ;lunarInfo这个数组记录了农历每年每个月的月份大小数据和该年的闰月数据,使用的十六进制数记录。
      ----------------------------------------
      位运算不好理解,以1987年的十六进制数据0x0af46也就是calendar.lunarInfo[87]为例来说明,说人话的含义为:0x0af46转换为二进制为:1010111101000110,这个二进制数的从左往右的前12位也就是‘101011110100’分别表示该年一至十二月的月份大小,1表示大月0表示小月,那么1987年农历一月就是大月二月就是小月三月是大月以此类推该农历年每个月的大小月就查的出来了。
      ----------------------------------------
      有人说了0x0af46转换为二进制为:1010111101000110明明长度有16位,你只用了前12位0或1来表示大小月,最后还有4位浪费了...木有浪费的。
      ----------------------------------------
      该二进制数从左往右第13位用0或1表示该年闰月的大小月,1表示该年闰月为大月,0表示该年闰月为小月,若该年农历没有闰月则为0,然后剩下来的其他位转换为十进制即为该农历年的闰月月份,若该年没有闰月补齐3个0;示例中第13位为0表是该年闰月为29天,最后3位为110,二进制转十进制为6即表示1987年农历是润六月的,而且润六月是小月为29天。

      晶晶 3个月前 (07-31) 回复
  5. #5

    @kano 经查这个是一个代码bug,二十四节气表数据木有问题,bug已修正~

    晶晶 3个月前 (07-24) 回复
  6. #6

    我發覺我的萬年曆顯示2018的立春日是2月3日, 而不是2月4日, 但其他節氣又完全正確, 請問是程式碼問題?

    kano 3个月前 (07-22) 回复
    • @kano:二十四节气是将地球绕太阳公转划分为24等份,每一等分所对应的时刻(注意是时刻并不是时间段)即为一个节气,这样划分之后有些情况下某个节气的时刻可能刚过午夜0点不久,这种时候你说是3号也行说4号也没错,因为时间又会有时区一说嘛。
      这个代码里的二十四节气数据来源于香港天文台,如果代码给出的节气有问题的话说明香港天文台测算的数据有问题,但这种天文台测定的数据有问题的情况概率应当是及其渺小甚至是没有的~~

      晶晶 3个月前 (07-23) 回复
      • @晶晶:我清楚哦 ^^ 不過我在香港天文台的網站上也是看到2月4日, 所以才覺得怪怪的.

        2018年2月4日          十九        星期日      立春  

        在您這網頁看到的萬年曆是2月4日立春, 但我用您 calendar.js 的 calendar.solar2lunar(2018,2,3) 和
        (2018,2,4) 時, 只有 3 是立春...

        我不太懂怎樣更新您的 sTermInfo 來修正...

        如果由 7f07e7f0e47f531b0723b0b6fb0722 更新成 8007e7f0e47f531b0723b0b6fb0722 會多了一個 "雨水" 的節氣 ... ^^"

        想請教如何修正 ^^"

        kano 3个月前 (07-24) 回复
  7. #7

    解决自己的一个小需求时用到了你的代码,感谢。项目地址:https://github.com/dusu/calendar4print

    dusu 5个月前 (05-16) 回复
  8. #8

    写万年历时用了你的农历、干支、节气等算法。但该算法中月日干支以立春为界,年和生肖却不是,所以我简单修改了一下,统一以立春为界:
    var lichunDay = calendar.getTerm(year,3);
    if((m==1 && month==1) || (m==2 && month==1 && d<lichunDay)){
        year--;
    }else if(m==2 && month==12 && d>=lichunDay){
        year++;
    }
    我的万年历地址是:https://wuxincai.com/fn/wnl/ 支持键盘和移动触屏操作。

    无心菜 7个月前 (03-16) 回复
  9. #9

    阳历:2017年1月5日(魔羯座)
    农历:2016年腊月初八,丙申年庚子月壬辰日(猴年)
    庚子月 应该是 辛丑月

    嘻嘻哈哈 10个月前 (01-05) 回复
    • @嘻嘻哈哈:能否解决??

      家家 8个月前 (02-12) 回复
  10. #10

    月份干支返回值不对

    嘻嘻哈哈 10个月前 (01-05) 回复
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