This article explains how to see the calendar with all the birthdays of your friends on Facebook using an iPhone or an iPad.
Steps
Step 1. Open the Facebook application on your iPhone or iPad
The icon looks like a white "f" in a blue square. You can find it on the home screen or in a folder on the home screen.
Enter your e-mail address or phone number and password to log in if it does not happen automatically
Step 2. Tap the menu icon
The button depicts three horizontal lines and is located at the bottom right. This will open the navigation menu.
Step 3. Scroll down and tap Events
This option is located next to the calendar icon (which is red and white).
Step 4. Tap the Calendar tab on the "Events" page
This button is located at the top of the screen. Allows you to open the Facebook calendar and displays a chronological list of all saved events.
Step 5. Scroll down and look for your friend's name next to the birthday cake icon
Your friends' birthdays are all automatically added to the calendar. If you see the cake icon next to a friend's name, it means it's their birthday.