The Gutenberg editor in WordPress includes a Calendar block. It allows you to display your posts in the calendar format. When you publish a new post, it is automatically added to the calendar on the publishing day. Once you click the date, it will take you to the posts published on the date.
In this article, I will show you how to use the Gutenberg Calendar block in WordPress. It will take you only a few minutes to complete reading the post.
Step 01: Find the Calendar Block in the Block Library
Get into a post/page. Hit the plus (+) button on the editor. Type Calendar in the search bar. The block will instantly appear with the icon you can see in the image below. Click to add the block to the editor.

You can see the Calender block has been added to the editor in a blink of your eyes.

Step 02: Stylize the Calendar Block
Come to the Color option on the right sidebar. You’ll see options to color the Text and Background of the block.

Let’s first colorize the Text. Once you apply any color to the text, a new option ‘Link‘ will appear.
By colorizing the Link text, you can mark the specific dates on which the post was published with a different color. Apply your desired colors.

Now, apply a background color to the Calendar block. You may leave the block as it is if you like default background color.

Lastly, change the typography and font size of the Calendar block from the Typography option below the Color section.

Thus, you can use the Calendar block to display the archive links to your published posts according to publishing dates.
Learn how to split long blog posts into multiple pages.
Conclusion
The Gutenberg Calendar block is very simple and straightforward. It doesn’t offer lots of features and functionalities. There are many Gutenberg block plugins with advanced calendar blocks. To enjoy more features in this block, you have to use any of those block plugins.
I will try to cover those block plugins, including their custom blocks, in some days in the future. Besides, if there is any special topic on WordPress you want me to discuss or write tutorials, let me know through the comment box. Thanks for your time and happy WordPressing.