Copy the link and follow the setup instructions. Also use this option for manual setup.
You can also continue checking the diary on this website.
Add to Outlook or another calendar
Copy this link, then use your calendar's Subscribe from web or From URL option.
Outlook
In Outlook on the web or new Outlook, open Calendar, choose Add calendar, then Subscribe from web. Paste the link, give the calendar a name and confirm. In classic Outlook, use Add Calendar > From Internet.
Other calendars
Look for Add calendar, then Subscribe from web, From URL or a similar option. Paste the link and confirm the subscription.
Updates may take several hours. Remove the subscribed calendar in your app to unsubscribe; your personal appointments stay unchanged.