Depends on who makes it and how its perceived. If it is something like an up-front ad banner that is shown on the fly - (Movie premieres in 7 days!) it works,

Depends on who makes it and how its perceived. If it is something like an up-front ad banner that is shown on the fly - (Movie premieres in 7 days!) it works, if it is somewhere not visited often people may forget to check. I do event lists with the days in between listed... https://doplaces.com/events https://doplaces.com/events I make sure to list the day name as well as I think more about what day it is than the date. X days might be confusing if it's not live like an email or facebook post (which I regularly discover after the events)