How to Add Days to JavaScript Date

Dates play a crucial role in software development and often need to be manipulated for various purposes.

In JavaScript, the Date object is used to represent a date and time.

In this Javascript tutorial, we’ll explore how to add days to a JavaScript Date object, which is a common operation for scheduling applications or calculating deadlines.

Using the setDate() Method

The setDate() method of the Date object is used to set the day of the month for a date.

This method can also be used to add days to a date by passing a positive integer value.

Code Example:

let date = new Date();
date.setDate(date.getDate() + 7);
console.log(date);

In the above code, we first create a new Date object and then use the setDate() method to add 7 days to it.

The getDate() method is used to get the current day of the month, and the setDate() method is used to set the day of the month to the current day plus 7 days.

Using the setTime() Method

The setTime() method of the Date object is used to set the time for a date.

This method can also be used to add days to a date by converting the number of days into milliseconds and adding it to the current time.

Code Example:

let date = new Date();
date.setTime(date.getTime() + (7 * 24 * 60 * 60 * 1000));
console.log(date);

In the above code, we first create a new Date object and then use the setTime() method to add 7 days to it.

The getTime() method is used to get the current time in milliseconds, and the setTime() method is used to set the time to the current time plus 7 days, which is calculated by converting the number of days into milliseconds.

Conclusion

In this tutorial, we have explored two methods of adding days to a JavaScript Date object.

Both methods are easy to use and can be incorporated into your code depending on the requirements of your project.

Whether you’re building a scheduling application or a deadline calculator, adding days to a date is a crucial operation that is essential for many software projects.