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Editorial Team
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Asked: 2026-06-17T03:42:46+00:00

I am in need of virtual time (4 x current date and time). I

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I am in need of virtual time (4 x current date and time). I have managed to display the running clock with the current date and time, but I am unable to the time four times faster than current time.

For example, if the current date is 01-01-2012 00:00:00, the virtual time should
be 01-01-2012 00:00:04

Not only the seconds alone should get multiplied; the corresponding minutes, hours, date, month and year also should get multiplied when seconds crosses 59 virtual seconds. That is, the clock should run live with incremental of four seconds for every second with my date format.

Please see my page: http://www.chemfluence.org.in/sample.html

It’s now running with the current time. I want to run this four times faster.

Please see my code below.

<!DOCTYPE html>
<html>
    <head>
        <script>
            function startTime()
            {
                var today = new Date();
                var h = today.getHours();
                var m = today.getMinutes();
                var s = today.getSeconds();
                // Add a zero in front of numbers<10
                m = checkTime(m);
                s = checkTime(s);
                document.getElementById('txt').innerHTML =
                    today.getDate() +
                    "-" +
                    (today.getMonth()+1)+"-" +
                    today.getFullYear() +
                    " "+h+":"+m+":"+s;
                t = setTimeout(function(){startTime()},500);
            }

            function checkTime(i)
            {
                if (i<10)
                {
                    i = "0" + i;
                }
                return i;
            }
        </script>
    </head>

    <body onload="startTime()">
        <div id="txt"></div>
    </body>
</html>
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1 Answer

  1. Editorial Team

    There is a simple formula to determine the virtual time for every given time, knowing the two timestamps and the factor:

    var virtualOrigin = Date.parse("2012-01-01T00:00:04"),
    realOrigin = Date.parse("2012-01-01T00:00:00"),
    factor = 4;

function getVirtual(time) {
    return new Date( virtualOrigin + (time - realOrigin) * factor );
}

// usage:
var now = new Date(),
    toDisplay = getVirtual(now);

    Demo at jsfiddle.net

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