Birthdays don’t change but it can be changed online. Normally, this should be permanent but Facebook knows there are bound to be mistakes while creating your profile on Facebook. They made the provision to allow its users to edit their birthday date. To edit and change it is very simple, read the few steps below and learn how it’s done.
How to change my birthday date
Log in to your Facebook account.
Click on your profile picture/name to go to your Profile.
Click on About.
Click on Contact and Basic Info which can be located on the left menu if you’re using PC to access Facebook.
Scroll down till you see birth date where your year, month, and date is located.
Click on the pencil icon to edit it.
Use the drop-down menu to select the year, month, and date you want to use and click on Save.