Timer
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Countdown Timer</title>
<style>
body {
font-family: sans-serif;
text-align: center;
}
h1 {
font-size: 3rem;
margin-top: 1rem;
margin-bottom: 1rem;
}
#countdown {
display: flex;
justify-content: center;
align-items: center;
font-size: 2rem;
margin-bottom: 1rem;
}
#countdown span {
padding: 0.5rem;
}
#countdown span:not(:last-child) {
border-right: 1px solid black;
}
@media only screen and (max-width: 600px) {
h1 {
font-size: 2rem;
}
#countdown {
font-size: 1.5rem;
}
}
</style>
</head>
<body>
<h1>Countdown Timer</h1>
<form>
<label for="date">Date:</label>
<input type="date" id="date" name="date" required>
<br>
<label for="time">Time:</label>
<input type="time" id="time" name="time" required>
<br>
<input type="submit" value="Start Countdown">
</form>
<div id="countdown"></div>
<script>
// Get the form and countdown elements
const form = document.querySelector("form");
const countdown = document.getElementById("countdown");
// Listen for form submission
form.addEventListener("submit", event => {
event.preventDefault();
// Get the user's selected date and time
const date = form.date.value;
const time = form.time.value;
const targetDate = new Date(`${date}T${time}`).getTime();
// Update the countdown every second
const interval = setInterval(() => {
// Get today's date and time
const now = new Date().getTime();
// Calculate the distance between now and the target date
const distance = targetDate - now;
// Time calculations for days, hours, minutes and seconds
const days = Math.floor(distance / (1000 * 60 * 60 * 24));
const hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
const minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
const seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Output the result in an element with id="countdown"
countdown.innerHTML = `
<span>${days}d</span>
<span>${hours}h</span>
<span>${minutes}m</span>
<span>${seconds}s</span>
`;
// If the countdown is finished, write some text
if (distance < 0) {
clearInterval(interval);
countdown.innerHTML = "EXPIRED";
}
}, 1000);
});
</script>