“Hour; The word has hardly changed in centuries. It denotes the name of the sun god. Horus was portrayed as the hawk, wearing the solar disc. He was the rising sun, that flew up into the sky. In the
early days when one wanted to know what time it was, meaning where the sun was, they said, “what Horus is it?” (where is Horus now?). Today we say, “what hour is it?”

Source: Astro-Theology Etymology and Sidereal Mythology Tarot Astronomy