Thank you for contacting us here on the community forums.
Yes, we have had a request for this and please keep an eye out for it in the future.
However, I did find this post in our calculations forum: https://help.podio.com/hc/en-us/community/posts/207081807-Have-Podio-calculation-count-down-the-number-of-days-remaining-until-deadline
It may be something close to what you would need in the meantime.
/Podio - Dana