Simple to use. A top section allows you to place what you want to appear when setting sets a time you set. A bottom section shows what you want to appear before or after that. I use it for sale items going on and off sale at midnight.
Also check out “Expiry” - It allows for a stack to show or not show either “before” a set time or “after” a set time. You can use two on a page and show one thing before “X” time and another after.
I think DEMO is still offered so you can actually use them before you buy to see if they do what you want.