◉ Tool · The Planetary Hour Clock
The Planetary Hour Clock
A live clock for the Grimoire's planetary hours: sunrise and sunset for a location, the twenty-four unequal hours, the ruling planet and the kind of action each hour supports. A planetary hour is one twelfth of the daylight (or of the night), ruled in turn by the seven classical planets. The first hour after sunrise belongs to the day's planet.
The hour is a window, not a command. Use it to choose when to start or close a working; do not wait for a perfect one.
How the clock works
The day is divided from sunrise to sunset into twelve unequal hours; the night is divided from sunset to the next sunrise into twelve more. The first hour after sunrise is ruled by the day's planet, then the Chaldean order repeats: Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon.
The calculation is an approximation. It uses the standard solar position formula and the browser's local timezone; near the poles, or on a DST boundary, it can be off by minutes. For a working, a few minutes do not matter. For an exact election, check an ephemeris.
Build your own
The full build is The Planetary Hour Daemon; the practice is Planetary timing. The clock is the page version; the daemon is the version that runs by itself.