To only add it to your iPhone, please follow these instructions:
(do not click this link on an Android phone, as you will not receive updates to the calendar – you need to subscribe on a computer via Gmail first for Android phones)
- Launch the Settings app on your iPhone or iPad.
- Tap on Accounts & Passwords
- Tap on Add Account…then other
- Tap Add Subscribed Calendar
- Paste in the following link (note, if you click the link instead of copying it, it may ask to add the calendar items, do not, instead copy & paste it, to ensure you subscribe to a live calendar):
6. Click subscribe