Hi @Dad_01 and welcome to our community!
Your post has been translated to English as this is an International forum, please post any replies in English and it will be easier for me and other users to assist you.
To my knowledge, there is no way to see the creation date of a contact in What's App. However, due to the fact that What's app is an app manufactured by a third party, my support on the app is quite limited. I would suggest that you get in contact with What's App for more information regarding this.
Let me know if you find a way!
