A very complete js code for displaying lunar (lunar) dates_time and date

function RunGLNL(){
var today=new Date();
var d=new Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday", "Saturday");
var DDDD=(today.getYear()today.getYear() 1900:today.getYear()) "Year" (today.getMonth() 1) "Month" today.getDate() "Day";
DDDD = DDDD " " d[today.getDay()];
DDDD = DDDD " " (CnDateofDateStr(today));
//DDDD = DDDD " " SolarTerm(today);
document.write(DDDD);
}
function DaysNumberofDate(DateGL){
return parseInt((Date.parse(DateGL)-Date.parse(DateGL.getYear () "/1/1"))/86400000) 1;
}
function CnDateofDate(DateGL){
var CnData=new Array(
0x16,0x2a,0xda,0x00,0x83, 0x49,0xb6,0x05,0x0e,0x64,0xbb,0x00,0x19,0xb2,0x5b,0x00, 0x87,0x6a,0x57,0x04,0x12,0x75,0x2b,0x00,0x1d,0xb6,0x95,0x00,0x 8a ,0xad,0x55,0x02,
0x15,0x55,0xaa,0x00,0x82,0x55,0x6c,0x07,0x0d,0xc9,0x76,0x00,0x17,0x64,0xb7,0x00,
0x86,0xe4,0xae ,0x05,0x11,0xea,0x56,0x00,0x1b,0x6d,0x2a,0x00,0x88,0x5a,0xaa,0x04,
0x14,0xad,0x55,0x00,0x81,0xaa,0xd5,0x09,0x0b,0x52, 0xea,0x00,0x16,0xa9,0x6d,0x00,
0x84,0xa9,0x5d,0x06,0x0f,0xd4,0xae,0x00,0x1a,0xea,0x4d,0x00,0x87,0xba,0x55,0x04
) ;
var CnMonth=new Array();
var CnMonthDays=new Array();
var CnBeginDay;
var LeapMonth;
var Bytes=new Array();
var I;
var CnMonthData;
var DaysCount;
var CnDaysCount;
var ResultMonth;
var ResultDay;
var yyyy=DateGL.getYear();
var mm= DateGL.getMonth() 1;
var dd=DateGL.getDate();
if(yyyyif ((yyyy 2020)){ return 0;
}
Bytes[0] = CnData[(yyyy - 1997) * 4];
Bytes[1] = CnData[(yyyy - 1997) * 4 1];
Bytes[ 2] = CnData[(yyyy - 1997) * 4 2];
Bytes[3] = CnData[(yyyy - 1997) * 4 3];
if ((Bytes[0] & 0x80) != 0) {CnMonth[0] = 12;}
else {CnMonth[0] = 11;}
CnBeginDay = (Bytes[0] & 0x7f);
CnMonthData = Bytes[1];
CnMonthData = CnMonthData CnMonthData = CnMonthData | Bytes[2]; LeapMonth = Bytes[3];
for (I=15;I>=0;I--){
CnMonthDays[15 - I] = 29;
if (((1 CnMonthDays[15 - I] ;} if (CnMonth[15 - I] == LeapMonth ){
CnMonth[15 - I 1] = - LeapMonth;}
else{
if (CnMonth[15 - I] else {CnMonth[15 - I 1] = CnMonth[15 - I] 1;} if (CnMonth[15 - I 1] > 12 ){ CnMonth [15 - I 1] = 1;}
}
}
DaysCount = DaysNumberofDate(DateGL) - 1;
if (DaysCount if ((yyyy > 1901) && (CnDateofDate(new Date((yyyy - 1) "/12/31")) ResultMonth = - CnMonth[0];} else { ResultMonth = CnMonth[0];}
ResultDay = CnBeginDay DaysCount;
}
else{
CnDaysCount = CnMonthDays[0] - CnBeginDay;
I = 1;
while (( CnDaysCount CnDaysCount = CnMonthDays[I]; I ;
}
ResultMonth = CnMonth[I];
ResultDay = DaysCount - CnDaysCount;
}
if (ResultMonth > 0){
return ResultMonth * 100 ResultDay;}
else{return ResultMonth * 100 - ResultDay;}
}
function CnYearofDate (DateGL){
var YYYY=DateGL.getYear();
var MM=DateGL.getMonth() 1;
var CnMM=parseInt(Math.abs(CnDateofDate(DateGL))/100);
if(YYYYif(CnMM>MM) YYYY--; YYYY-=1864;
return CnEra(YYYY) "Year";
}
function CnMonthofDate(DateGL){
var CnMonthStr=new Array("zero","positive","two","three","four","five","six","seven", "Eight","Nine","Ten","Eleven","拉");
var Month;
Month = parseInt(CnDateofDate(DateGL)/100);
if (Month else{return CnMonthStr[Month] "month";} }
function CnDayofDate(DateGL){
var CnDayStr =new Array("zero",
"first day of junior high school", "second day of junior high school", "third day of junior high school", "fourth day of junior high school", "fifth day of junior high school",
"sixth day of junior high school", "seventh day of junior high school", " "Eighth day", "Ninth day", "Tenth day",
"Eleventh", "Twelfth", "Thirteenth", "Fourteenth", "Fifteenth",
"Sixteenth", "Seventeen", "Eighteen", "Nineteen", "Twenty",
"Twenty-one", "Twenty-two", "Twenty-three", "Twenty-four", "Twenty-five",
"Twenty-six", "Twenty-seven", "Twenty-eight", "Twenty-nine", "Thirty");
var Day;
Day = (Math.abs(CnDateofDate(DateGL))) 0;
return CnDayStr[Day];
}
function DaysNumberofMonth(DateGL){
var MM1=DateGL.getYear();
MM1var MM2=MM1; MM1 ="/" (DateGL.getMonth() 1);
MM2 ="/" (DateGL.getMonth() 2);
MM1 ="/1" ;
MM2 ="/1";
return parseInt((Date.parse(MM2)-Date.parse(MM1))/86400000);
}
function CnEra(YYYY){
var Tiangan=new Array("A","B","C","D","W","Ji","G","Xin","Ren","縸");
//var Dizhi=new Array("子(rat)","Chou(ox)","Yin(tiger)","卯(Rabbit)","陈(龙)","巳(SNAKE) ",
//"Wu (Horse)", "Wei (Sheep)", "Shen (Monkey)", "You (Chicken)", "Xu (Dog)", "Hai (Pig)");
var Dizhi=new Array("子","Chou","Yin","卯","陈","峳","武","伟","神","酉","戌","海");
return Tiangan[YYYY ] Dizhi[YYYY ];
}
function CnDateofDateStr(DateGL){
if(CnMonthofDate(DateGL)=="Zero month") return "Please adjust your computer date!";
else return "Lunar calendar:" CnYearofDate(DateGL) " " CnMonthofDate(DateGL) CnDayofDate(DateGL);
}
function SolarTerm(DateGL){
var SolarTermStr=new Array(
"Little Cold","Big Cold","Beginning of Spring","Rain" , "Jingzhe", "Spring Equinox",
"Qingming", "Grain Rain", "Beginning of Summer", "Xiaoman", "Grain of Light", "Summer Solstice",
"Small Heat", "Great Heat", "Beginning of Autumn" , "End of Summer", "White Dew", "Autumnal Equinox",
"Cold Dew", "Frost Descent", "Beginning of Winter", "Light Snow", "Heavy Snow", "Winter Solstice");
var DifferenceInMonth=new Array(
1272060,1275495,1281180,1289445,1299225,1310355,
1321560,1333035,1342770,1350855,1356420,1359045,
1358580,1 355055,1348695,1340040,1329630,1318455,
1306935, 1297380,1286865,1277730,1274550,1271556);
var DifferenceInYear=31556926;
var BeginTime=new Date(1901/1/1);
BeginTime.setTime(947120460000);
for ( ;DateGL.getYear()BeginTime.setTime(BeginTime.getTime()-DifferenceInYear*1000);
}
for(;DateGL.getYear()>BeginTime .getYear();){
BeginTime.setTime(BeginTime.getTime() DifferenceInYear*1000);
}
for(var M=0;DateGL.getMonth()>BeginTime.getMonth(); M ){
BeginTime.setTime(BeginTime.getTime() DifferenceInMonth[M]*1000);
}
if(DateGL.getDate()>BeginTime.getDate()){
BeginTime. setTime(BeginTime.getTime() DifferenceInMonth[M]*1000);
M ;
}
if(DateGL.getDate()>BeginTime.getDate()){
BeginTime.setTime(BeginTime .getTime() DifferenceInMonth[M]*1000);
M==23?M=0:M ;
}
var JQ;
if(DateGL.getDate()==BeginTime. getDate()){
JQ=" Today is " SolarTermStr[M] "";
}
else if(DateGL.getDate()== BeginTime.getDate()-1){
JQ=" Tomorrow is " SolarTermStr[M] "";
}
else if(DateGL.getDate ()==BeginTime.getDate()-2){
JQ=" The day after tomorrow is " SolarTermStr[M] "";
}
else{
JQ=" "
if(DateGL.getMonth()==BeginTime.getMonth()){
JQ =" This month";
}
else{
JQ = "Next month";
}
JQ =BeginTime.getDate() "Day" "" SolarTermStr[M] "";
}
return JQ;
}
function CAL()
{}
RunGLNL();