Using conditional shortcodes can be so versatile for many things, however, I don’t know if there is a way to write a conditional shorcode relating to time. For example, display a certain content only after a certain date/time; or display it only until a certain time; etc.
As an example, I am planning an activity on my site where a specific image has to be found to get a hint. The activity lasts only 3 days, so I would like to have those images (there are a dozen) only available for the specific days of the event and then “disappear” automatically.
So far, I have done all the work manually, adding images to pages and posts right before midnight, then, go back to all the pages/posts to remove then after the deadline. I think it would be great if it could be automated.
If it is not available now, maybe it could be a new feature (on your looooong to-do list of ideas).