How to use planetary hours

The system behind planetary hours is covered in Planetary hours, explained. This article is about the practical part: how the daily cycle unfolds, and how to actually use it with the free calculator on our Planetary Hours page.

The daily cycle. Everything runs on the Chaldean order — Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon — repeating endlessly. The planet that rules the first hour after sunrise also rules the whole day and gives it its name: Sunday begins with the Sun, Monday with the Moon, Tuesday with Mars, and so on through the week. From there the hours simply advance one step through the Chaldean order, so a Sunday opens Sun, Venus, Mercury, Moon, Saturn, Jupiter, Mars, and cycles on from there.

Sunrise, not midnight. A planetary day starts at sunrise, not at midnight. The daylight is divided into twelve equal hours and the night into twelve more — equal to each other, but not to sixty minutes. In summer, day hours stretch while night hours shrink; in winter the reverse. Both shift with your latitude, which is why the same date produces different hours in Chicago than in Sydney.

Using the calculator. Our free Planetary Hours page does the math for you.

• Set the date and location. Choose a preset city, enter exact coordinates, or tap "Use my location."
• Read the current hour. The highlighted card at the top shows the hour you are in now, its ruler, and a one-line suggestion for working with its energy.
• Scan the tables. Below, the day and night tables list all twenty-four hours with each ruler's sign and degree, its traditional dignity, and its exact start and end times in your device's time zone.

A word on dignity. Next to each hour you will see where its ruler currently sits in the zodiac and how well it is placed. Domicile or exaltation means the planet is in strong, familiar territory; a fall or detriment mutes it. A Mars hour in good dignity carries that much more decisive weight than a Mars hour that is struggling.

Putting hours to work. Match the hour to the task:

• Sun — visibility: pitches, interviews, asking for credit.
• Mercury — writing, study, negotiation, errands.
• Venus — art, beauty, reconciliation, dates.
• Mars — workouts, hard conversations, decisive action.
• Jupiter — applications, teaching, generosity, big asks.
• Saturn — structure: admin, budgets, endings, discipline.
• Moon — rest, home, care, listening to your gut.

A note on expectations: planetary hours are a timing language, not a forecast. Choosing the hour stacks the deck; it does not guarantee the outcome.

Start simple. Spend a week just noticing which hour you are in — the calculator, or the dashboard if you are a member, makes that a glance. Then begin choosing one deliberate hour a day. When you are ready for hours read against your own birth chart, that is what a Lumina Pulse subscription adds.