The movement of planets and planetary hours has always excited people's intellectual curiosity. Since ancient times, people have looked up to the planets to interpret their influence on life, love, career, and relationships.

Even the weekdays have their planetary connotations. For instance, Moon rules Monday, Saturn rules Saturday, Sun rules Sunday, and so on. You see, the day names we use come from their ruling planet. Check the Tuesday, Wednesday, and Friday translations in French and guess the rulers.

The planetary rulers of the days are dependent upon planetary hours.

What Is a Planetary Hour?

Just like regular day hours, there are 24 planetary hours in a day. But unlike an ordinary day that starts at midnight, the planetary day begins at sunrise. The hours divide time using the Chaldean order — Saturn, Jupiter, Mars, Sun, Venus, Mercury, and Moon.

The planet ruling the first hour of the day becomes the ruler of the day. For example, Sun rules Sunday, so the circle of 12 rulers for Sunday will be:

Sun
Sunday — Day Rulers Sun, Venus, Mercury, Moon, Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon, Saturn
Sun
Sunday — Night Rulers Jupiter, Mars, Sun, Venus, Mercury, Moon, Saturn, Jupiter, Mars, Sun, Venus, Mercury

However, the planetary hours are not exactly 60 minutes of an ordinary hour, and their duration varies per the duration of daylight and darkness.

How to Calculate Planetary Hours

Date and location play a vital role in calculating a planetary hour. The time of sunrise and sunset determines each planetary hour. For example, on 26th June, the sunrise time in London was 4:37, and sunset was 10:01. The total day length was 17 hours and 24 minutes (1044 minutes).

When the sum is divided by 12, it gives us a planetary hour of 87 minutes each. At the same time, the night hour will be of 33 minutes on 26th June. This shows the planetary hour of the day is longer than the night hour during summer.

In today's digital world, calculating planetary hours is effortless. You can use Planetaro across all platforms:

Channelizing Planetary Hours to Bring Luck in Life

Since the advent of time, people have sought astrology's secrets to bring luck in every matter of their life. It lets you know about planets and how they play their role in your everyday activities:

Moon
Moon — Emotions & Family Moon represents meditation, emotional well-being, and motherly instincts. Ideal for family conversations, self-reflection, and nurturing relationships.
Sun
Sun — Vitality & Creativity Sun is responsible for relaxation, regaining energy, and creative expression. Schedule your most important creative work during Sun hours.
Venus
Venus — Love & Values Venus rules love, beauty, and harmony. Perfect for date nights, resolving relationship conflicts, or indulging in art and aesthetics.
Mercury
Mercury — Communication & Career Mercury governs intellect and communication. Schedule job interviews, team meetings, client calls, and important emails during Mercury hours.
Mars
Mars — Action & Drive Mars fuels ambition and physical energy. Best for workouts, competitive tasks, and tackling challenging projects head-on.
Jupiter
Jupiter — Growth & Opportunity Jupiter brings expansion and luck. Ideal for networking, financial decisions, starting new ventures, and long-term planning.
Saturn
Saturn — Discipline & Structure Saturn teaches responsibility and boundaries. Use this time for budgeting, organizing, setting goals, and mapping out long-term responsibilities.

If you want to learn more about the energies of the planetary days, check Planetary days of the week — different feeling with rulers.

Bottom Line

Aligning your activities to astrology will help you drive luck, success, and harmony in life. Remember, to benefit from planetary hours, familiarize yourself with each day's ruling planet.

Whether you are planning a career move during Jupiter hour, scheduling a heartfelt conversation during Moon hour, or launching a creative project during Sun hour, these small timing adjustments can make a meaningful difference in your daily life.

Start tracking planetary hours today with Planetaro's free calculator, or download the app on iOS or Android.