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converter_ItoE.htm
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converter_ItoE.htm
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<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
<TITLE>想界暦→現界暦変換器</TITLE>
<SCRIPT language="JavaScript">
function julius_i(year_i, month_i, day_i){
var monthnum = [29, 29, 30, 29, 30, 29, 30, 29, 29, 30, 29, 32];
var daycount = 0;
var year = 0;
var month = 0;
if (month_i == 12){
month = 0;
year = parseInt(year_i) + 1;
}else{
month = parseInt(month_i);
year = parseInt(year_i);
}
var jday = Math.floor(354.75 * (year - 3.0)) - Math.floor(year / 400.0) + Math.floor(year / 100.0) + Math.floor(day_i) - 703602;
var i = 0;
for (i = 0; i < month; i++){
daycount += monthnum[i];
}
jday += daycount;
return jday
}
var week = ["水", "木", "金", "土", "日", "月", "火"]
function convert_ItoE(year_i, month_i, day_i, hour_i, minute_i, second_i){
var elapse_i = julius_i(parseInt(year_i), parseInt(month_i), parseInt(day_i)) + ((parseInt(second_i) / 60.0 + parseInt(minute_i)) / 60.0 + parseInt(hour_i)) / 24.0;
var week_int = julius_i(parseInt(year_i), parseInt(month_i), parseInt(day_i)) % 7;
var elapse_e = elapse_i * 85874.08 / 86400.0;
var time_e = elapse_e - Math.floor(elapse_e);
var elapse_int = Math.floor(elapse_e)
var n = elapse_int + 46886 + 678881;
var a = 4 * n + 3 + 4 * Math.floor(0.75 * Math.floor(4.0 * (n + 1) / 146097 + 1));
var b = 5 * Math.floor(a % 1461 / 4) + 2;
var year_e = parseInt(a / 1461);
var month_e = parseInt(b / 153) + 3;
var day_e = parseInt((b % 153) / 5) + 1;
if(month_e >= 13){
year_e++;
month_e -= 12;
}
var hour_e = parseInt(time_e * 24);
var minute_e = parseInt((time_e * 24 - hour_e) * 60)
var second_e = parseInt(((time_e * 24 - hour_e) * 60 - minute_e) * 60)
return "想界暦：" + year_i + "年 " + month_i + "月 " + day_i + "日 " + hour_i + "：" + minute_i + "：" + second_i + "(" + week[week_int] +")\n現界暦：" + year_e + "年 " + month_e + "月 " + day_e + "日 " + hour_e + "：" + minute_e + "：" + second_e;
}
function format(num, keta) {
var d = Math.pow(10, keta);
return Math.Math.floor(num * d + .5) / d;
}
function calc_ItoE() {
var form = document.forms[0];
form.result.value = "--- 計算中 ---";
var str = new String();
str += convert_ItoE(form.year.value, form.month.value, form.day.value, form.hour.value, form.minute.value, form.second.value);
form.result.value = str;
}
</SCRIPT>
</HEAD>
<BODY>
<TABLE width=100% border=0 cellspacing=0 cellpadding=8></TABLE>
<BLOCKQUOTE>
<FORM>
<INPUT type=text size=4 name=year>年
<INPUT type=text size=2 name=month>月
<INPUT type=text size=2 name=day>日
<INPUT type=text size=2 name=hour>時
<INPUT type=text size=2 name=minute>分
<INPUT type=text size=2 name=second>秒
<BR>
<INPUT type=button value=" 想→現 " onclick="calc_ItoE()">
<BR>
<TEXTAREA name=result rows=9 cols=60 readonly></TEXTAREA>
</FORM>
</BLOCKQUOTE>
</BODY>
</HTML>