91 lines
3 KiB
HTML
91 lines
3 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<!--
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(c) Sangelo
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Simple countdown webpage that can be used as a startpage
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You can feed the date the counter should be counting down to in the URL like this:
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http://<countdown>/?date=YYYY-MM-DDTHH:MM:SS
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-->
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Countdown Timer</title>
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<style>
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body {
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background: radial-gradient(circle, #414144, #202123);
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background-size: 100% 500%;
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display: flex;
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justify-content: center;
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align-items: center;
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height: 100vh;
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margin: 0;
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font-family: monospace, monospace;
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color: #ffffff75;
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}
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#countdown {
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font-size: 200px;
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margin: 0 20px;
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opacity: 1;
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transition: opacity 0.5s;
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pointer-events: none;
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}
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.completed {
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color: #fff; /* Full opacity when countdown is completed */
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}
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</style>
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</head>
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<body>
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<div id="countdown">000:00:00:00</div>
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<script async>
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function formatWithLeadingZeros(number, length) {
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return number.toLocaleString('en-US', {minimumIntegerDigits: length, useGrouping: false});
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}
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const countdownElement = document.getElementById("countdown");
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const countdownDate = getDateFromUrl();
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function updateCountdown() {
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const now = new Date().getTime();
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const distance = countdownDate - now;
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if (distance <= 0) {
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countdownElement.innerHTML = "🥳";
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countdownElement.classList.add("completed");
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return;
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}
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const days = Math.floor(distance / (1000 * 60 * 60 * 24));
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const hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
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const minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
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const seconds = Math.floor((distance % (1000 * 60)) / 1000);
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const formattedDays = formatWithLeadingZeros(days, 3);
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const formattedHours = formatWithLeadingZeros(hours, 2);
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const formattedMinutes = formatWithLeadingZeros(minutes, 2);
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const formattedSeconds = formatWithLeadingZeros(seconds, 2);
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countdownElement.innerHTML = `${formattedDays}:${formattedHours}:${formattedMinutes}:${formattedSeconds}`;
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requestAnimationFrame(updateCountdown);
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}
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function getDateFromUrl() {
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const urlParams = new URLSearchParams(window.location.search);
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const dateParam = urlParams.get('date');
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if (dateParam) {
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const timestamp = Date.parse(dateParam);
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if (!isNaN(timestamp)) {
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return timestamp;
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}
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}
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return new Date("1970-01-01T00:00:00").getTime();
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}
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requestAnimationFrame(updateCountdown);
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</script>
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</body>
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</html>
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