Click here (or copy and paste the following link) with your Google Calendar open to add it to your own calendar: 

https://calendar.google.com/calendar?cid=cW83cWc1YzdyZmxrcGRkNWZwNTR2ZDlxMThAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ