Set Data Value to current date, token not present

Apologies for creating this support request but I've search all the issues and Google and everything mentioning it is from 2011 or before.

I have a rule with an action that creates an entity. All I want to do is populate a date field with the site:current-date. It seems that this would be obvious but I can't find a way to do it. The site current date appears in the list for "data to be modified" but not in the list of values. It says you may have to add a condition for it to appear but current date is not a condition, it the current date!

Someone please answer this (probably stupid) question and I will make a handbook page or something that keeps people from asking it. Thank you.