How do the body sentences help to develop the paragraph

Asap that time of year thou mayst in me behold when yellow leaves, or none, or few do hang upon those boughs which shake against the cold, bare ruined choirs, where late the sweet birds sang. in this excerpt, what is the best meaning for the word "late"? not on time until recently dead well into the evening

According to the article, affects the perception of color. culture winning gender daylight

Who is generally considered a postmodern author