Chronos was the protogonos of time. He was one of the original beings in the universe along with Gaia, Uranus, Tartarus, Nyx and Thanatos. He is often confused with Kronos, the Titan of time and agriculture. This is easily done as both carry a scythe.
Chronos is pictured as an elderly man with a scythe at his side, sitting at a desk looking at an hourglass. He is also pictured as a snake that along with Nyx, the prontagonos of night encircled the Earth.