Installation of Calendar for Jira
To install Calendar for Jira for Jira Data Center, follow these steps:
Log in to your Jira instance as an administrator.
Go to the "Add-ons" page.
Click the "Find new add-ons" button.
In the search box, type "Calendar for Jira" and press Enter.
Select the "Calendar for Jira" add-on from the list of results.
Click the "Install" button.
Alternatively, you can also install the add-on manually by downloading the add-on file from the Atlassian Marketplace and uploading it to your Jira instance.
Before installing the add-on, make sure that you have the necessary permissions to install add-ons.