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Astrology

Planetary Hour

Classical astrology · the planet ruling this hour (sunrise ≈ 6am)

A classical scheme dividing each day into planetary hours ruled in Chaldean order (Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon). The first hour after sunrise gives the day its ruler — Sun-day, Moon-day, and so on.

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At a glance

Type
A clock — each hour ruled by a planet
Origin
Hellenistic astrology, in the Chaldean order of the planets
Week
The source of the weekday names: each day is named for the ruler of its first hour
Day
Twelve hours of daylight and twelve of night, each with a ruling planet
Where it’s used
Traditional and modern astrology
How it’s worked out here
Equal hours from 6 am rather than from your true sunrise — the traditional hours stretch and shrink with the seasons

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