When you use any of the import event screens in Connect Daily, you have the option to Periodically refresh the calendar with this data. If you check this option a permanent link is made for the import URL and the calendar. A calendar can have Periodic Event Import links from as many data sources as you would like.
By default, the import will be re-executed every 24 hours. To view or edit the import links you have created for a calendar, go to Edit | Calendars. Click on the pencil icon to the left of the calendar. Towards the bottom of the page, you should see the Recurring Imports section.

URL - This is the URL to the file to import. If the path changes, you must delete the import link, and create a new link using the appropriate import screen.
Type - This is the import type. Supported types are iCal, RSS, and CSV.
Enabled - This box is checked if the import is enabled, and unchecked to disable it. If 3 errors occur during import, the system will automatically disable the link. For example, if the web server hosting the file is down for 3 days, and the import file is unavailable, the link will be disabled. Checking the box will re-enable the import link.
Import Interval - This is how often the data should be imported to Connect Daily.
Last Imported - Date and time the import was last executed.
Messages - System messages generated during the LAST import.