Noon is the Hinge of Day — Newspaper

Noon-is the Hinge of Day-1
Evening-the Tissue Door-
Morning-the East compelling the sill
Till all the World is ajar-
(F.1060/J.931)
[1] Noon:: the hottest thing. Hinge:: the cardinal point of a discussion or controversy (OED 4b, 1638). Day:: day newspaper.
[2] Evening:: the flatness.
[3] Morning:: the beginning. Sill:: the foot or lower part of a title-page or title (OED 5a, 1834).