Hello,
Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
The date you see in the Google Search results is provided by your theme so you should check where to disable the date in posts in your theme. If not possible, I would recommend you ask your theme support to change it.
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.