Why is the Immaculate Conception celebrated Dec 8?

[lancyds]

I was asked by a Born Again Protestant abot how we celebrate the feast of The Immaculate Conception on 8th Dec and not 9 months before Christmas

Lancy

 

[Reginald_Plum]

Lancy,

These links should explain why the Roman Catholic Church celebrates Mary’s Immaculate Conception on December 8. If you have any further questions or concerns that are not answered by these links, please contact Catholic Answers directly.

Recommended Reading:
Was Jesus immaculately conceived?
How do we know that September 8 is the Blessed Mother’s birthday?