Convert seconds to HH-MM-SS format in JavaScript

By Faruque Ahamed Mollick

In this tutorial, I am going to show you how to convert seconds to HH-MM-SS or Hours-Minutes-Seconds format using JavaScript.

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In may times you may need to convert seconds into a well formatted to be understood easily. Suppose you are measuring the duration of an event in JavaScript and the seconds is consist of a large number. Then it will be really hard to get the idea of time. So it is better to convert it into a well formatted time. So I am going to tell you how to convert seconds into the HH-MM-SS format.

Here is the JavaScript code that you can see below:

var measuredTime = new Date(null);
measuredTime.setSeconds(4995); // specify value of SECONDS
var MHSTime = measuredTime.toISOString().substr(11, 8);

So you can see that it is a very simple and easy way to convert seconds into HH-MM-SS formatted time. Here in this example code, I have specified the seconds as 4995 and it returns the 1 as the hour, 23 as minutes and 15 as seconds. It returns the output 01:23:15.

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You can also try the above code and test it. You will get the well formatted time from seconds.

Alternative way of converting seconds in HH-MM-SS format

You can also convert seconds using mathematical operations.

Below is another example code of doing the same task with the mathematical operation:

hours = Math.floor(totalSeconds / 3600);
totalSeconds %= 3600;
minutes = Math.floor(totalSeconds / 60);
seconds = totalSeconds % 60;

Source of the code: https://stackoverflow.com/questions/1322732/convert-seconds-to-hh-mm-ss-with-javascript

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