To add minutes to date in JavaScript:

  1. Use the getMinutes() method to get the minutes of the given date.
  2. Use the setMinutes() method by passing the result returned by getMinutes() plus the number of minutes you want to add.
  3. The setMinutes() method sets the value on the given date.

Here is an example that adds 30 minutes to the current date in JavaScript:

const today = new Date()
today.setMinutes(today.getMinutes() + 30)

// Sat Sep 10 2022 22:47:41 GMT+0500 (Pakistan Standard Time)

The getMinutes() method returns a number between 0 and 59, denoting the number of minutes on the given date.

The setMinutes() method takes a number as input representing the number of minutes and sets the value on the date.

The above methods also take care of the situation where adding a specific number of minutes to date results in the next day, month, or year:

const date = new Date('2022-09-10T23:33:23.900Z')
date.setMinutes(date.getMinutes() + 30)

// Sun, 11 Sep 2022 00:03:23 GMT

If you frequently need to add minutes to date, just create a reusable function that takes the number of minutes as a parameter and adds them to the current date:

Date.prototype.addMinutes = function (mins) {
  const date = new Date(this.valueOf())
  date.setMinutes(date.getMinutes() + mins)
  return date

const date = new Date('2022-09-10T16:23:23.900Z')

// Add 45 Minutes
const result = date.addMinutes(45)

// Sat, 10 Sep 2022 17:08:23 GMT

In the above example, we added a function called addMinutes() to the Date object prototype. This function will be available to all instances of Date for adding minutes to date.

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