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You are here: Home / JavaScript / Add Minutes to a Date Using JavaScript

Add Minutes to a Date Using JavaScript

January 21, 2022 Leave a Comment

To add minutes to a date, we can use the JavaScript getTime() method. The getTime() method converts dates into the number of milliseconds since January 1st, 1970. Since there are 60000 milliseconds in 1 minute, we can add multiples of 60000 to our converted date to add as many minutes as we want.

var date1 = new Date();
var dateToMilliseconds = date1.getTime();
var addedMinutes = dateToMilliseconds + (60000*5);
//This will add 5 minutes to our time.
var newDate = new Date(addedMinutes);
//This will create a new date that will be 5 minutes ahead of the current date

We can also add negative milliseconds to subtract minutes from a date. Below are some examples of adding minutes to a date object with the help of the getTime() method.

var date1 = new Date();
var dateToMilliseconds = date1.getTime();
var result1 = date1;
var result2 = new Date(dateToMilliseconds+(60000*5));
var result3 = new Date(dateToMilliseconds+(60000*60));
var result4 = new Date(dateToMilliseconds+(60000*60*24));
var result5 = new Date(dateToMilliseconds+(-60000*5));

Which would result in the following:

result1 = Fri Jan 21 2022 10:24:22 GMT-0500 (Eastern Standard Time);
result2 = Fri Jan 21 2022 10:29:22 GMT-0500 (Eastern Standard Time);
result3 = Fri Jan 21 2022 11:24:22 GMT-0500 (Eastern Standard Time);
result4 = Sat Jan 22 2022 10:24:22 GMT-0500 (Eastern Standard Time);
result5 = Fri Jan 21 2022 10:19:22 GMT-0500 (Eastern Standard Time);

Add Minutes to a Date Using JavaScript with a Click

In this example, we will let the user add minutes to the current date using an input field. We will use the getTime() method to convert dates to milliseconds like we did above.

Here is our HTML setup:

<p>How many minutes do you want to add to the current date and time?</p>
<input id="userVal" type="text" value="">
<input id="submitNum" type="submit" onclick="addMintues()" value="Submit">
<div id="results"></div>

Below is the JavaScript code which will take the user input using the onclick event and run the function below. The function will add the minutes to the current date like we did above. We will then update the #results div using the textContent property.

function addMintues() {
  var date1 = new Date();
  var dateToMilliseconds = date1.getTime();
  var userMinutes = document.getElementById("userVal").value;
  var addedMinutes = dateToMilliseconds + (60000*userMinutes);
  var newDate = new Date(addedMinutes);
  document.getElementById("results").textContent = newDate;
}

The final code and output for this example is below:

Code Output:

How many minutes do you want to add to the current date and time?


Full Code:

<p>How many minutes do you want to add to the current date and time?</p>
<input id="userVal" type="text" value="">
<input id="submitNum" type="submit" onclick="addMintues()" value="Submit">
<div id="results"></div>

<script>

function addMintues() {
  var date1 = new Date();
  var dateToMilliseconds = date1.getTime();
  var userMinutes = document.getElementById("userVal").value;
  var addedMinutes = dateToMilliseconds + (60000*userMinutes);
  var newDate = new Date(addedMinutes);
  document.getElementById("results").textContent = newDate;
}

</script>

Hopefully this article has been useful in helping you understand how to Add Minutes to a Date Using JavaScript.

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