How to add an Outlook calendar to your iPhone

1. Open your iPhone Settings app.

2. Scroll down and tap Mail and then Accounts.

Tap on Mail and then Accounts.

3. Select Add Account.

4. Choose Microsoft Exchange

5. Enter your Outlook username and password.

6. Toggle on the option to sync your calendars. 

Once on, the toggle for your calendars, contacts, mail, and more will turn green.

7. Choose Save in the upper right corner.