Hello,
Thank you for contacting Rank Math today.
Rank Math does not add any post date meta on the description. Google will extract this info from the post data on the template.
To remove this, I can suggest that you reach out to your theme author so that they can advise on how to remove the post date from post content on the page template.
Looking forward to helping you. Thank you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.