In ancient times when man had not quite got round to inventing the wristwatch, the most reliable source of telling the time was the sun, moon, and stars. There seems to be several opinions of who came up with the moon planting calendar first.
From the SIERRA CLUB magazine--their "Moment of Calm" they call, "Clouds, Meet Sea." caption: "A storm front rolls in toward Sydney, Australia. Photographer Jem Cresswell swam 200 yards offshore to capture it.