1. What Are Planetary Hours?

Planetary hours are an ancient timekeeping system that divides the daylight period (sunrise to sunset) into 12 equal parts, regardless of the season. Each "hour" represents a planetary influence according to traditional astrology.

2. How Does the Calculator Work?

The calculator uses the planetary hours formula:

Where:

• \( Sunset \) — Local sunset time
• \( Sunrise \) — Local sunrise time

Explanation: The formula calculates the duration of each planetary hour by dividing the total daylight duration by 12.

3. Importance of Planetary Hours

Details: Planetary hours are used in various esoteric traditions for timing magical workings, rituals, and important activities based on the planetary influence of each hour.

4. Using the Calculator

Tips: Enter your local sunrise and sunset times in 24-hour format (HH:MM). The calculator will determine the length of each planetary hour in decimal hours.

5. Frequently Asked Questions (FAQ)

Q1: Why are there 12 planetary hours in daylight?
A: This system originates from ancient Babylonian astrology which divided both day and night into 12 equal parts, regardless of season.

Q2: Do planetary hours change throughout the year?
A: Yes, the length of planetary hours varies with the changing length of daylight throughout the seasons.

Q3: How are the planets assigned to the hours?
A: The planets follow the Chaldean order: Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon, repeating cyclically.

Q4: Are night hours calculated differently?
A: Yes, night hours are calculated separately from sunset to sunrise the next day, also divided into 12 equal parts.

Q5: Where can I find accurate sunrise/sunset times?
A: Many weather apps, websites, or almanacs provide precise sunrise and sunset times for your location.