To automatically keep your own calendar updated with RSAC and NSAC events, you can add it to your own calendar using an .ics file.

Copy this link and import it into your preferred calendar application: https://calendar.google.com/calendar/ical/0404d03a0997761e6c594b9d1730678a1903f6258100795637e923505d4cffb0%40group.calendar.google.com/public/basic.ics