How To Change Facebook Date of Birth
To change your date of birth on Facebook, log in and go to your profile by tapping your picture. Select About or Edit Profile, then choose Contact and Basic Info. Scroll down to Basic Information and find your birthday details. Click or tap Edit, update the day, month, or year, and save the changes. Facebook limits how often you can change this information, so make sure it’s accurate. In some cases, Facebook may require ID verification if you change your birth date repeatedly.