Yes, I've read and done teh Google many times but I still can't get this working... maybe I'm an idiot :)

I have a system using tickets. Start date is "created_at" in the timestamps. Each ticket closes 7 days after "created_at". In the model, I'm using:

def closes
  (self.created_at + 7.days)
end

I'm trying to create another method that will take "closes" and return it as how many days, hours, minutes, and seconds are left before the ticket closes. Anyone want to help and/or admonish my skills? ;)