To subscribe to an iCalendar feed using Google Calendar: You can add an iCalendar feed as follows: Lightning is a calendar plugin for the popular email client Mozilla Thunderbird. Make sure the box is checked in the Update Limit section.
To subscribe to an iCalendar feed using Outlook:
Change the name and color (optional), change the Location to On My Mac (important!), and update the Auto-refresh frequency to Every day (important!), then click OK.Type or paste one of the two feed URLs above into Calendar URL field then click Subscribe.From the File menu select New Calendar Subscription.Open the Calendar program (in Applications).
