"The Tell- Take Heart" is a story by writer Edgar Allan Poe. This story was published for the first time in 1843.
A line that brings out the theme of time in this story, is ..."And this I did for seven long nights—every night just at midnight..."
In this specific line, we can see the narrator's idea of killing the old man from the story, and he focuses on time by saying that he went every night (for seven nights) to the old man's bedroom to try and kill him.
