<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
input
{ font-family: Verdana;
font-size: 12;
color: #ffffff;
border-width: 0;
background-color: #000077;
text-align: right;
padding:5px;
margin-bottom:1px;
}
</style>
</head>
<body>
<!--formulario deshabilitado donde se muestran los datos-->
<form name="form">
<div></div><br>
<input type="text" size="5" name="year" disabled> años<br>
<input type="text" size="5" name="month" disabled> meses<br>
<input type="text" size="5" name="day" disabled> dias<br>
<input type="text" size="5" name="hour" disabled> horas<br>
<input type="text" size="5" name="minute" disabled> minutos<br>
<input type="text" size="5" name="second" disabled> segundos<br>
</form>
</body>
</html>
<script>
//Codigo que muestra la cuenta atras hasta el final del año 2010
//La Web del Programador
//http://www.lawebdelprogramador.com
(function(){ //variables que determinan la fecha y hora final de la cuenta atras
let toYear=2025;
let toMonth=7;
let toDay=9;
let toHour=21;
let toMinute=0;
let toSecond=0;
const fillZero = i => i.toString().length==1 ? "0"+i : i;
document.querySelector("form>div").innerHTML=`Tiempo restante hasta el ${fillZero(toDay)}-${fillZero(toMonth)}-${toYear} ${fillZero(toHour)}:${fillZero(toMinute)}:${fillZero(toSecond)}`; function countDown()
{ const actual_date=new Date();
let new_second=toSecond-actual_date.getSeconds();
let new_minute=toMinute-actual_date.getMinutes();
let new_hour=toHour-actual_date.getHours();
let new_day=toDay-actual_date.getDate();
let new_month=toMonth-(1+actual_date.getMonth());
let new_year=toYear-actual_date.getFullYear();
if (new_second<0) { new_second=60+new_second;
new_minute--;
}
if (new_minute<0) { new_minute=60+new_minute;
new_hour--;
}
if (new_hour<0) { new_hour=24+new_hour;
new_day--;
}
if (new_day<0) { new_month--;
let m=actual_date.getMonth();
if (m in [0, 2, 4, 6, 7, 9, 11]) { new_day=31+new_day;
}
if (m in [3, 5, 8, 10]) { new_day=30+new_day;
}
if (m==1) { //febrero //comprobamos si es un año bisiesto...
if (actual_date.getYear()/4-Math.floor(actual_date.getYear()/4)==0) { actual_date=29+actual_date;
} else { actual_date=28+actual_date;
}
}
}
if (new_month<0) { new_month=12+new_month;
new_year--;
}
if (new_year<0) { clearInterval(interval);
return;
}
form.second.value=fillZero(new_second);
form.minute.value=fillZero(new_minute);
form.hour.value=fillZero(new_hour);
form.day.value=new_day;
form.month.value=new_month;
form.year.value=new_year;
}
let interval=setInterval(countDown, 1000);
})();
</script>
Crear cuenta
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