Javascript农历与公历相互转换
/**用法
* Lunar.toSolar(2016, 6, 3); 农历转化公历
* Lunar.toLunar(2016, 7, 6); 公历转化农历
*/
var Lunar = {
MIN_YEAR : 1891,
MAX_YEAR : 2100,
lunarInfo : [
[0,2,9, 21936], [6,1,30, 9656], [0,2,17, 9584], [0,2,6, 21168], [5,1,26,43344], [0,2,13,59728],
[0,2,2, 27296], [3,1,22,44368], [0,2,10,43856], [8,1,30,19304], [0,2,19,19168], [0,2,8, 42352],
[5,1,29,21096], [0,2,16,53856], [0,2,4, 55632], [4,1,25,27304], [0,2,13,22176], [0,2,2, 39632],
[2,1,22,19176], [0,2,10,19168], [6,1,30,42200], [0,2,18,42192], [0,2,6, 53840], [5,1,26,54568],
[0,2,14,46400], [0,2,3, 54944], [2,1,23,38608], [0,2,11,38320], [7,2,1, 18872], [0,2,20,18800],
[0,2,8, 42160], [5,1,28,45656], [0,2,16,27216], [0,2,5, 27968], [4,1,24,44456], [0,2,13,11104],
[0,2,2, 38256], [2,1,23,18808], [0,2,10,18800], [6,1,30,25776], [0,2,17,54432], [0,2,6, 59984],
[5,1,26,27976], [0,2,14,23248], [0,2,4, 11104], [3,1,24,37744], [0,2,11,37600], [7,1,31,51560],
[0,2,19,51536], [0,2,8, 54432], [6,1,27,55888], [0,2,15,46416], [0,2,5, 22176], [4,1,25,43736],
[0,2,13, 9680], [0,2,2, 37584], [2,1,22,51544], [0,2,10,43344], [7,1,29,46248], [0,2,17,27808],
[0,2,6, 46416], [5,1,27,21928], [0,2,14,19872], [0,2,3, 42416], [3,1,24,21176], [0,2,12,21168],
[8,1,31,43344], [0,2,18,59728], [0,2,8, 27296], [6,1,28,44368], [0,2,15,43856], [0,2,5, 19296],
[4,1,25,42352], [0,2,13,42352], [0,2,2, 21088], [3,1,21,59696], [0,2,9, 55632], [7,1,30,23208],
[0,2,17,22176], [0,2,6, 38608], [5,1,27,19176], [0,2,15,19152], [0,2,3, 42192], [4,1,23,53864],
[0,2,11,53840], [8,1,31,54568], [0,2,18,46400], [0,2,7, 46752], [6,1,28,38608], [0,2,16,38320],
[0,2,5, 18864], [4,1,25,42168], [0,2,13,42160], [10,2,2,45656], [0,2,20,27216], [0,2,9, 27968],
[6,1,29,44448], [0,2,17,43872], [0,2,6, 38256], [5,1,27,18808], [0,2,15,18800], [0,2,4, 25776],
[3,1,23,27216], [0,2,10,59984], [8,1,31,27432], [0,2,19,23232], [0,2,7, 43872], [5,1,28,37736],
[0,2,16,37600], [0,2,5, 51552], [4,1,24,54440], [0,2,12,54432], [0,2,1, 55888], [2,1,22,23208],
[0,2,9, 22176], [7,1,29,43736], [0,2,18, 9680], [0,2,7, 37584], [5,1,26,51544], [0,2,14,43344],
[0,2,3, 46240], [4,1,23,46416], [0,2,10,44368], [9,1,31,21928], [0,2,19,19360], [0,2,8, 42416],
[6,1,28,21176], [0,2,16,21168], [0,2,5, 43312], [4,1,25,29864], [0,2,12,27296], [0,2,1, 44368],
[2,1,22,19880], [0,2,10,19296], [6,1,29,42352], [0,2,17,42208], [0,2,6, 53856], [5,1,26,59696],
[0,2,13,54576], [0,2,3, 23200], [3,1,23,27472], [0,2,11,38608], [11,1,31,19176],[0,2,19,19152],
[0,2,8, 42192], [6,1,28,53848], [0,2,15,53840], [0,2,4, 54560], [5,1,24,55968], [0,2,12,46496],
[0,2,1, 22224], [2,1,22,19160], [0,2,10,18864], [7,1,30,42168], [0,2,17,42160], [0,2,6, 43600],
[5,1,26,46376], [0,2,14,27936], [0,2,2, 44448], [3,1,23,21936], [0,2,11,37744], [8,2,1, 18808],
[0,2,19,18800], [0,2,8, 25776], [6,1,28,27216], [0,2,15,59984], [0,2,4, 27424], [4,1,24,43872],
[0,2,12,43744], [0,2,2, 37600], [3,1,21,51568], [0,2,9, 51552], [7,1,29,54440], [0,2,17,54432],
[0,2,5, 55888], [5,1,26,23208], [0,2,14,22176], [0,2,3, 42704], [4,1,23,21224], [0,2,11,21200],
[8,1,31,43352], [0,2,19,43344], [0,2,7, 46240], [6,1,27,46416], [0,2,15,44368], [0,2,5, 21920],
[4,1,24,42448], [0,2,12,42416], [0,2,2, 21168], [3,1,22,43320], [0,2,9, 26928], [7,1,29,29336],
[0,2,17,27296], [0,2,6, 44368], [5,1,26,19880], [0,2,14,19296], [0,2,3, 42352], [4,1,24,21104],
[0,2,10,53856], [8,1,30,59696], [0,2,18,54560], [0,2,7, 55968], [6,1,27,27472], [0,2,15,22224],
[0,2,5, 19168], [4,1,25,42216], [0,2,12,42192], [0,2,1, 53584], [2,1,21,55592], [0,2,9, 54560]
],
//是否闰年
isLeapYear : function(year) {
return ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0));
},
//天干地支年
lunarYear : function(year) {
var gan = ['庚', '辛', '壬', '癸', '甲', '乙', '丙', '丁', '戊', '己'],
zhi = ['申', '酉', '戌', '亥', '子', '丑', '寅', '卯', '辰', '巳', '午', '未'],
str = year.toString().split("");
return gan[str[3]] + zhi[year % 12];
},
//生肖年
zodiacYear : function(year) {
var zodiac = ['猴', '鸡', '狗', '猪', '鼠', '牛', '虎', '兔', '龙', '蛇', '马', '羊'];
return zodiac[year % 12];
},
//公历月份天数
//@param year 阳历-年
//@param month 阳历-月
solarMonthDays : function(year, month) {
var FebDays = this.isLeapYear(year) ? 29 : 28;
var monthHash = ['', 31, FebDays, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
return monthHash[month];
},
//农历月份天数
lunarMonthDays : function(year, month) {
var monthData = this.lunarMonths(year);
return monthData[month - 1];
},
//农历月份天数数组
lunarMonths : function(year) {
var yearData = this.lunarInfo[year - this.MIN_YEAR];
var leapMonth = yearData[0];
var bit = (+yearData[3]).toString(2);
var months = [];
for (var i = 0; i < bit.length; i++) {
months[i] = bit.substr(i, 1);
} for (var k = 0, len = 16 - months.length; k < len; k++) {
months.unshift('0');
} months = months.slice(0, (leapMonth == 0 ? 12 : 13));
for (var i = 0; i < months.length; i++) {
months[i] = +months[i] + 29;
}
return months;
},
//农历每年的天数
//@param year 农历年份
lunarYearDays : function(year) {
var monthArray = this.lunarYearMonths(year);
var len = monthArray.length;
return (monthArray[len-1] == 0 ? monthArray[len-2] : monthArray[len-1]);
},
//
lunarYearMonths : function(year) {
var monthData = this.lunarMonths(year);
var res = [];
var temp = 0;
var yearData = this.lunarInfo[year - this.MIN_YEAR];
var len = (yearData[0] == 0 ? 12 : 13);
for (var i = 0; i < len; i++) {
temp = 0;
for (j = 0; j <= i; j++) {
temp += monthData[j];
}
res.push(temp);
}
return res;
},
//获取闰月
//@param year 农历年份
leapMonth : function(year){
var yearData = this.lunarInfo[year - this.MIN_YEAR];
return yearData[0];
},
//计算农历日期与正月初一相隔的天数
betweenLunarDays : function(year, month, day) {
var yearMonth = this.lunarMonths(year);
var res = 0;
for (var i = 1; i < month; i++) {
res += yearMonth[i-1];
}
res += day - 1;
return res;
},
//计算2个阳历日期之间的天数
//@param year 阳历年
//@param month
//@param day
//@param l_month 阴历正月对应的阳历月份
//@param l_day 阴历初一对应的阳历天
betweenSolarDays : function(year, month, day, l_month, l_day) {
var time1 = new Date(year +"-"+ month +"-"+ day).getTime(),
time2 = new Date(year +"-"+ l_month +"-"+ l_day).getTime();
return Math.ceil((time1-time2)/24/3600/1000);
},
//根据距离正月初一的天数计算阴历日期
//@param year 阳历年
//@param between 天数
lunarByBetween : function(year, between) {
var lunarArray = [], yearMonth = [], t = 0, e = 0, leapMonth = 0, m = '';
if (between == 0) {
t = 1;
e = 1;
m = '正月';
} else {
year = between > 0 ? year : (year - 1);
yearMonth = this.lunarYearMonths(year);
leapMonth = this.leapMonth(year);
between = between > 0 ? between : (this.lunarYearDays(year) + between);
for (var i = 0; i < 13; i++) {
if (between == yearMonth[i]) {
t = i + 2;
e = 1;
break;
} else if (between < yearMonth[i]) {
t = i + 1;
e = between - ((yearMonth[i-1]) ? yearMonth[i-1] : 0) + 1;
break;
}
} m = (leapMonth != 0 && t == leapMonth + 1)
? ('闰'. this.chineseMonth(t-1))
: this.chineseMonth(((leapMonth != 0 && leapMonth + 1 < t) ? (t - 1) : t));
}
lunarArray.push(year, t, e); //年 月 日
lunarArray.push(this.lunarYear(year),
this.zodiacYear(year),
m,
this.chineseNumber(e)); //天干地支年 生肖年 月份 日
lunarArray.push(leapMonth); //闰几月
return lunarArray;
},
//中文月份
chineseMonth : function(month) {
var monthHash = ['', '正月', '二月', '三月', '四月', '五月', '六月', '七月', '八月', '九月', '十月', '冬月', '腊月'];
return monthHash[month];
},
//中文日期
chineseNumber : function(num) {
var dateHash = ['', '一', '二', '三', '四', '五', '六', '七', '八', '九', '十'];
if (num <= 10) {
res = '初'+ dateHash[num];
} else if (num > 10 && num < 20) {
res = '十'+ dateHash[num-10];
} else if (num == 20) {
res = "二十";
} else if (num > 20 && num < 30) {
res = "廿"+ dateHash[num-20];
} else if (num == 30) {
res = "三十";
}
return res;
},
//转换农历
toLunar : function(year, month, day) {
var yearData = this.lunarInfo[year - this.MIN_YEAR];
if (year == this.MIN_YEAR && month <= 2 && day <= 9) {
return [1891, 1, 1, '辛卯', '兔', '正月', '初一'];
}
return this.lunarByBetween(year, this.betweenSolarDays(year, month, day, yearData[1], yearData[2]));
},
//转换公历
//@param year 阴历-年
//@param month 阴历-月，闰月处理：例如如果当年闰五月，那么第二个五月就传六月，相当于阴历有13个月
//@param date 阴历-日
toSolar : function(year, month, day) {
var yearData = this.lunarInfo[year - this.MIN_YEAR];
var between = this.betweenLunarDays(year, month, day);
var ms = new Date(year +"-" + yearData[1] +"-"+ yearData[2]).getTime();
var s = ms + between * 24 * 60 * 60 * 1000;
var d = new Date();
d.setTime(s);
year = d.getFullYear();
month = d.getMonth() + 1;
day = d.getDate();
return [year, month, day];
}
};
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