Astrology

Planetary Hours Clock

Choose a city and date to divide daylight and night into the traditional planetary hours. The unequal hour lengths follow the local solar day.

  • Free
  • No sign-up
  • PDF report
  • 2 min
  • Private
  1. 1
    Enter the detailsAdd the date, time or place requested by the tool.
  2. 2
    See the calculationThe report shows the placements and method used.
  3. 3
    Reflect in contextUse the symbolism as a prompt, not as a prediction.

What is the Planetary Hours Clock?

Planetary hours are an old timing system that assigns each hour to a planet in a repeating sequence. Day hours run from sunrise to sunset; night hours run from sunset to the next sunrise, so their length changes with the season.

This is a calendar calculation and a cultural practice. It does not identify a universally best time for an important decision.

How it works

Sunrise, sunset and the next sunrise are calculated for the chosen coordinates. Daylight and night are each divided into twelve equal parts, then the traditional Chaldean planetary sequence is applied.

How it connects to your star sign

This tool uses the tropical zodiac and an analytical ephemeris unless the method says otherwise. Astrology is a symbolic tradition, not a scientific test.

Common questions

Can this tool predict what will happen?

No. It calculates astronomical positions and presents traditional symbolism. It cannot guarantee events or replace practical judgment.

Are my details private?

Calculations run in your browser. Place search uses the selected city name with a geocoding service; the reading itself does not require an account.

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