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Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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<title>Stream Time</title>
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<style type="text/css">
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#clock {
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margin-bottom: 3px;
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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="clock"></div>
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<div><input type="number" id="delay" value="10" min="0" /> seconds of delay</div>
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<script type="text/javascript">
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const BUS_START_TIME = 1605290400;
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let updateClock = () => {
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let delay = parseInt(document.getElementById("delay").value);
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if (isNaN(delay)) {
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delay = 0;
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}
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let time = new Date().getTime() / 1000 - delay - BUS_START_TIME;
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let sign = "";
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if (time < 0) {
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time = -time;
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sign = "-";
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}
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let hours = Math.trunc(time / 3600).toString();
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let mins = Math.trunc((time % 3600) / 60).toString();
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let secs = Math.trunc(time % 60).toString();
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if (mins.length < 2) {
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mins = "0" + mins;
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}
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if (secs.length < 2) {
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secs = "0" + secs;
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}
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let formatted = sign + hours + ":" + mins + ":" + secs;
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document.getElementById("clock").innerText = formatted;
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};
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setInterval(updateClock, 1000);
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</script>
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</body>
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</html>
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