To add a calendar on Drupal 8, follow these steps:
1. Install and enable the Drupal 8 Calendar module from the official Drupal website or through the Drupal dashboard.
1. Once installed, go to the Drupal dashboard and click on the “Extend” button from the top menu.
1. Look for the Calendar module and click on the “Install” button next to it.
1. After installing the module, navigate to the “Structure” menu and select “Content types” from the drop-down.
1. Create a new content type by clicking on the “Add content type” button.
1. Give the content type a name, for instance “Events.”
1. Under the “Submission form settings,” select “Calendar” as the widget type for the date field.
1. Click on “Save and manage fields.”
1. Add additional fields to provide event details such as title, description, location, and more.
1. Go to the “Manage display” tab and select “Calendar” as the display format.
1. Configure the calendar settings as desired, including the start and end dates, time zone, and more.
1. Save the changes.
1. Now go to the “Content” menu and select “Add content.”
1. Choose the “Events” content type, and fill in the required information.
1. Once done, the event will appear on the calendar.
1. You can also customize the calendar’s appearance by going to the “Appearance” menu and selecting “Settings” for the calendar module.
1. After making desired changes, click on “Save config.”
Congratulations, you have successfully added a calendar on Drupal 8.