To get started with Day.js, you first need to include it in your HTML file. In the code above, Day.js is loaded directly from a CDN by adding a script tag in the head section. This makes the dayjs function available throughout your scripts.

Once Day.js is loaded, you can create a new date object by calling dayjs(). This creates a Day.js object representing the current date and time. Unlike the native JavaScript Date object, which is created using new Date(), Day.js uses a function call without the new keyword.

After creating the Day.js date, you can display it in the browser using the .format() method. This method returns a string representation of the date in a standardized format, making it easy to display or use elsewhere in your application.

A key difference between Day.js and the native Date object is that Day.js provides a simpler and more consistent API for handling dates. While the native Date object can be confusing and inconsistent across browsers, Day.js is designed for reliability and ease of use.