How To Change Your Birthday On Facebook On Phone. Go to facebook.com and sign into your account if you haven’t already; Choose your date of birth.
Facebook has been around for so long that most of us do not even remember setting it up for the first time. Go ahead and remove your phone number from facebook by visiting. Under basic info, you’ll see birth date and birth year.
When you sign up for a google account, you may be asked to add your birthday.
Click on contact and basic info to see your birthday details. Locate basic information on the page and move the mouse cursor over the birth date or birth year. If you find yourself forgetting your friends' birthdays, you can customize birthday notifications on facebook. When you do so, an edit option becomes available.