Need to show Publish date on Admin for Properties Page

I have a real estate theme (woo themes Estate) I’m using and for my properties page I cannot get the published on date to show in the admin section. I need this to show so I can have Mailchimp recognize my rss feed updates. anyone know how to get this to work.
Ive installed Admin columns plugin to add the Date section on my admin pages but no time stamp shows up.