Display expiration date on post

Hi there,
I have installed your plugin, and I am looking to display the expiration date within the post. Is there a short code, or a string I can reference to display the expiration date? I would also like to convert that expiration date into a counting timer (like shown on my site deepdarkwoods.com.au). Can you please advise the best way to do this?

Regards.
Jason.

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