Dates

Getting Current Date and Time
    <!DOCTYPE html>
    <html lang="en" xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta charset="utf-8" />
        <title>Getting the Current Date and Time</title>
        <script>
            window.onload = function () {
                var d = new Date();
                var out = "";
                out += "Day of Month : " + d.getDate();
                out += "<br/>Year : " + d.getFullYear();
                out += "<br/>Time : " + d.getHours() + ":" + d.getMinutes();
                document.getElementById('result').innerHTML = out;
            }
        </script>
    </head>
    <body>
        <div id="result"></div>
    </body>
    </html>
        
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Index

Setting a Custom Date and Time
    <!DOCTYPE html>
    <html lang="en" xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta charset="utf-8" />
        <title>Setting a Custom Date and Time</title>
        <script>
            window.onload = function () {
                var result = document.getElementById('result');
                // args : year, month, day, hours, minutes
                var d = new Date(2017, 1, 5, 12, 0);
                result.innerHTML = d;
                d = new Date(2020, 1, 5, 12, 0);
                result.innerHTML += "<br/>" + d;
                result.innerHTML += "<br/>" + d.getDate();
                result.innerHTML += "<br/>" + Date.now();
            }
        </script>
    </head>
    <body>
        <div id="result"></div>
    </body>
    </html>
        
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More Date and Time Functions
    <!DOCTYPE html>
    <html lang="en" xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta charset="utf-8" />
        <title>More Date and Time Functions</title>
        <script>
            window.onload = function () {
                var result = document.getElementById('result');
                var d = new Date();
                result.innerHTML = d;
                d.setFullYear(2020);
                result.innerHTML += "<br/>" + d;
                d.setHours(20);
                result.innerHTML += "<br/>" + d;
                result.innerHTML += "<br/>" + d.toJSON();
            }
        </script>
    </head>
    <body>
        <div id="result"></div>
    </body>
    </html>
        
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