# Convert seconds to minutes and seconds (mm:ss) using JavaScript

In this tutorial, we will learn how to convert seconds into minutes and seconds using JavaScript.

Before we code the function we have to know that is 1min = 60seconds.

So mathematically to find the minutes from seconds, we have to divide the given value by 60.

For example, to find the minutes from 120sec we have to do this.

``````120 / 60 (1 min = 60sec)
= 2 // answer is 2 minutes``````

So with this basic concept, we can code a Javascript function that will take seconds as a parameter and return us the minutes and seconds (mm:ss) equivalent to it.

## Convert seconds into minutes and seconds using vanilla JavaScript

To convert seconds into minutes and seconds we have to follow these three steps in our code:

1. Extract minutes from the seconds (given value) by dividing it by 60.
2. Get the remaining seconds from the reminder using % mod (Division Remainder)
3. Return the converted value.

Let’s see it in code

``````function getMinAndSec(seconds){
const min = seconds / 60;
const secs = seconds%60;
return `\${min} minutes and \${secs} seconds`;
}

console.log(getMinAndSec(120))``````

Output:

``2 minutes and 0 seconds``

However, if we pass 140 sec to the function we get

``getMinAndSec(140) // 2.3333333333333335 minutes and 20 seconds``

We get values in decimals. To solve this issue we have to use Math.floor() function.

The `Math. floor()` return the largest integer that is less than or equal to a given number.

``````function getMinAndSec(seconds){
const min = Math.floor(seconds / 60);
const secs = seconds%60;
return `\${min} minutes and \${secs} seconds`;
}

console.log(getMinAndSec(140)) // 2 minutes and 20 seconds``````

Here, we have divided the given value, 140 by 60 and we get 2.333 from which we took the floor number 2 as the minutes.

And the remainder of the number (140%60) is 20 which is the seconds.

## Format time to mm:ss in JavaScript

If you want the output in the `mm:ss` format we can use the toString() and padStart() methods in JavaScript.

The `toString()` method converts a number to a string in JavaScript.

The `padStart()` method is used to pad one string with another till the resulting string reaches the given length.

Syntax:

``padStart(targetLength, padString)``

targetLength: final length of the string.

So, let code the function to convert seconds into minutes and seconds in mm:ss format:

``````function getMinAndSec(seconds){
const min = Math.floor(seconds / 60);
const secs = seconds%60;
}

console.log(getMinAndSec(140))``````

Ouput:

``02:20``

In the above code, the padStart targeted string length is 2 to get the results in 2 digits.

Related articles:

JavaScript – Convert Days to Seconds