To add the calendar to your calendar (using a computer)

1. On your computer, open Google Calendar.
2. On the left, next to "Other calendars," click Add   From URL.

3. Enter the calendar's address.

 https://calendar.google.com/calendar/u/0?cid=c2t5cmlkZ2ViYW5kYm9vc3RlcnNAZ21haWwuY29t  

4. Click Add calendar. The calendar appears on the left, under "Other calendars."

Tip: It might take up to 24 hours for changes to show in your Google Calendar.