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; } 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=""; 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(); } } 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; function showCal(){ document.write(GetLunarDay(yy,mm,dd)); }
页面调用代码：
<script language="JavaScript" type="text/javascript" src="https://www.jb51.net/getCNdate.js"></script> <script type="text/javascript">showCal();</script>
代码二：用JavaScript获取当前农历日期
<script type="text/javascript"> var sWeek = new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六"); var dNow = new Date(); 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; } 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.getFullYear(); 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=""; tmp+=tgString.charAt((cYear-4)%10); tmp+=dzString.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) { if (solarYear<1921 || solarYear>2020) { return ""; } else { solarMonth = (parseInt(solarMonth)>0) ? (solarMonth-1) : 11; e2c(solarYear,solarMonth,solarDay); return GetcDateString(); }} 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); function getFullYear(d){// 修正firefox下year错误 yr=d.getYear();if(yr<1000) yr+=1900;return yr;} function showDate() { var sValue = getFullYear(dNow)+"年"+(dNow.getMonth()+1)+"月"+dNow.getDate()+"日"+" "+sWeek[dNow.getDay()]+" "; sValue+=GetLunarDay(yy,mm,dd); document.getElementById("pDate").innerHTML = sValue; }; window.onload=showDate; </script>
知道如何获取农历，如何呢获取当前日期也很简单。