Step 1:

Open Settings

Step 2:

Go to Calendar, and then Accounts

Step 3:

Click on Add Account

Step 4:

Go to Other

Step 5:

Click on Add Subscribed Calendar

Step 6:

Enter the following URL:

tanzquotient.org/en/events/calendar.ics

Step 7:

Choose a calendar name with the Description field.

The other fields can be left blank.

Press Save to complete the setup.