How to add to Google Calendar:
1. Click “Copy” to copy the link.
2. Optional: Click this
Google Calendar Add by URL link.
3. Paste the link into the "URL of calendar" field and click "Add Calendar".
If you add the generated link to your Google Calendar using the "Add by URL" option, your F1 calendar will update automatically whenever there are changes — you do not need to re-import it again in the future.