A Guide to Working with Dates in JavaScript

JavaScript allows you to work with date and time using the built-in Date constructor, which defines a date by representing the time (in milliseconds) that has passed since the epoch (January 1, 1970, UTC).

Creating a date

To create a date, you should use the Date() constructor.

By default, the Date() constructor creates a new date object using the current date and time. For instance,

1const today = new Date();
2
3console.log(today);

12024-05-20T19:15:05.743Z

You can also create a custom date by passing a date string.

1const date = new Date("2022-03-25");
2
3console.log(date);

12022-03-25T00:00:00.000Z

Date formats