Change Facebook Birthday
Change Facebook Birthday.
1. Browse to Facebook, visit to your account and browse to your Timeline. Click the "About" web link to start editing and enhancing your profile.
2. Click the "Edit" switch in the "Basic Info" box.
3. Select your correct day of birth in the Birthday section of the web page.
4. Select the "I verify my age is ..." choice to validate your age.
5. Click the "Save" switch to update the day of birth and change your age on Facebook.
Tip.
You could need to wait a few days before you can transform the Facebook age once again, in situation you picked the wrong day of birth a second time.