days are numbered, one's
Also, its days are numbered. The usefulness or life of someone or something is nearly ended. For example, When they announced the layoffs, she knew her days at the company were numbered, or My car's days are numbered-the transmission is shot. A version of this expression appears in the Bible (Daniel 5:26): "God hath numbered thy kingdom and finished it." It came into common use in the late 1800s.