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Trigger Function at Specific Time in JavaScript
For this, extract the time of specific date time and call the function using setTimeout(). The code is as follows −
Example
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initialscale=1.0">
<title>Document</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/fontawesome/4.7.0/css/font-awesome.min.css">
<style>
</style>
</head>
<body>
<script>
function timeToAlert() {
alert("The time is 9:36 AM");
}
var timeIsBeing936 = new Date("08/09/2020 09:36:00 AM").getTime()
, currentTime = new Date().getTime()
, subtractMilliSecondsValue = timeIsBeing936 - currentTime;
setTimeout(timeToAlert, subtractMilliSecondsValue);
</script>
</body>
</html>
To run the above program, save the file name “anyName.html(index.html)” and right click on the file. Select the option “Open with Live Server” in VS Code editor.
Output
This will produce the following output −
Updated on: 2020-09-14T09:11:07+05:30
3K+ Views
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