Hello,
Thank you for reaching out, and apologies for the inconvenience.
Please note that customizations fall outside of our official support policies. However, as a courtesy, I’d like to help you get started in the right direction.
You can begin by locating the relevant file inside the hidden content directory. The modification you’re looking to make involves overriding the default behavior to use the article’s creation date instead of the publish date.
To properly override an SP Page Builder addon, we recommend reviewing the official documentation here: SP Page Builder Addon Override Guide.
Let us know if you need further assistance with the process.
Best regards