Hey i have a question, i have a website where i have listings inserted into a database along with the time. How could i make it so the listings will automatically get deleted from the database after 60 days?

Change the page that displays the listings to check the dates before displaying them. If any are 60 days or older then delete them at that point. If no-one looks at the list for a few days after a listing turns 60 days old, it won't be deleted, but then no-one will notice since it will be deleted the first time someone loads the page again.

You can do similiar to the same thing above as Oberon stated, but if you want to eleminate uneccessary tasks during a normal user request, you can setup a cron job that would execute in the non-peak times (middle of the night) to run a pre-made script.

This is handy if you are handeling bulk items to parse and you want to do later to improve php/mysql/server performance.