Subscribing to the calendar will add the community events to your personal calendar.  This means that all new events and event updates will automatically appear on your personal calendar. Subscribing to events will always create a new calendar in your app.

• Click on Google Calendar and you’ll be redirected to your Google Calendar, where you’ll be prompted to add events directly to your Google Calendar. If you choose this option, Google Calendar will update with any event changes from the website every 24 hours (this time frame is created by Google Calendar).
• Use the iCalendar option to subscribe to the calendar in your iCalendar application. The frequency with which this calendar syncs with iCalendar will depend upon your iCalendar settings.