Have you ever cast a spell with all the right ingredients, the perfect moon phase, and heartfelt intention, only to feel like it just… fizzled? For years, I chalked these moments up to my own inexperience or simply the whims of fate. It wasn't until I began to understand the subtle currents of time itself that everything changed. This is the power of working with a planetary hours spellwork guide. It’s not about adding more complexity to your practice, but about learning to swim with the current of cosmic energy that ebbs and flows each day. As our host Rowan explains in the latest episode of *The Coven Keeper's Hour*, this ancient system was the missing piece that transformed their craft from hit-or-miss to consistently potent. In this article, we’ll unpack the key revelations from the episode, giving you a practical foundation to start aligning your magic with the rhythm of the planets.
Beyond the Planets: What Planetary Hours Really Are
The term “planetary hours” can be intimidating. It conjures images of complex astrological charts and advanced calculations, leading many practitioners to dismiss it as irrelevant to their simple, heart-centered practice. But as Rowan clarifies, this is the biggest misconception of all. Planetary hours aren't about the literal, physical planets directing beams of energy at us. Instead, they are a map of archetypal energies that correlate with the Earth's natural daily rhythm.
Think of it like the tide. The ocean's tides are pulled by the gravitational influence of the moon and sun, creating a predictable, powerful rhythm. You can choose to swim against the outgoing tide, exhausting yourself for little progress, or you can swim with the incoming tide, allowing its power to carry you. Planetary hours offer a similar advantage for your spellwork. They describe the “metaphysical tide” of the day—the shifting qualities of time that resonate with core concepts like communication (Mercury), love (Venus), action (Mars), and expansion (Jupiter).
Rowan shares a powerful personal anecdote from the podcast: after years of sporadic results, they began a rigorous six-month journaling practice. The data was undeniable. Spells cast in alignment with the corresponding planetary hour had a significantly higher success rate. This isn't “magic” in the supernatural sense, but magic in its most natural form: intelligent pattern recognition and conscious cooperation with the universe's inherent flows.
The Science of Rhythm and Magic
While our ancestors felt these rhythms intuitively, modern science is beginning to catch up. Rowan references chronobiology—the study of our internal biological clocks. Research has shown that our cognitive functions, creativity, and emotional states fluctuate in predictable cycles throughout the day. Your ability to focus on a detailed task at 3 PM is likely different from your capacity for creative brainstorming at 10 PM. Planetary hours can be seen as an ancient, symbolic system for tracking these very real energetic shifts, providing a framework to schedule your magical workings for maximum impact.
How to Calculate Planetary Hours (It's Easier Than You Think)
The second hurdle for many is the calculation. Visions of complicated math can be enough to send a beginner running for the hills. Fear not! The fundamental principle is straightforward, and once you understand it, you can leverage countless tools to do the hard work for you.
Here’s the core concept that Rowan breaks down: A planetary day lasts from sunrise to sunrise. This day is divided into 24 planetary hours—12 daylight hours and 12 nighttime hours. Crucially, these are not 60-minute hours. A planetary “hour” of daylight is the period of time between sunrise and sunset, divided by 12. Likewise, a planetary “hour” of night is the time between sunset and sunrise, divided by 12. This means the length of a planetary hour changes with the seasons, longer in the summer and shorter in the winter.
Each day of the week is ruled by a specific planet, which sets the energetic tone for the entire 24-hour period:
- Sunday: Sun
- Monday: Moon
- Tuesday: Mars
- Wednesday: Mercury
- Thursday: Jupiter
- Friday: Venus
- Saturday: Saturn
The sequence of hours within each day follows the ancient Chaldean order of the planets: Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon. This cycle repeats throughout the day and night. The first planetary hour of any day begins at sunrise and is ruled by the planet that governs that day. So, the first hour on Sunday is a Sun hour, the first hour on Monday is a Moon hour, and so on.
Practical Tools for the Modern Witch
You do not need to do this math yourself! The easiest way to incorporate this into your practice is to use a planetary hours calculator app or website. A quick search for “planetary hours calculator” will yield several options where you input your location, and it gives you a full chart for the day. This is the modern equivalent of the medieval cunning folk's practical wisdom—using the tools available to us to make magic accessible. If you're just starting out, a great place to begin is with our beginner's guide to witchcraft, which helps you build a strong foundation before adding layers like timing.
Matching Magic to the Moment: A Guide to Planetary Correspondences
Knowing how to find the hours is one thing; knowing how to use them is another. The real power comes from aligning your intention with the archetypal energy of the hour. This is where your spellwork can truly sing. Let’s explore the energies of each planet and how you can harness them.
Sun Hours (Sunday)
Energy: Vitality, success, authority, confidence, health, personal power.
Ideal For: Spells for career advancement, boosting self-esteem, healing, leadership, and summoning abundance. Cast a spell to nail a job interview or to step into your personal power.
Moon Hours (Monday)
Energy: Intuition, dreams, emotions, the subconscious, home, family, femininity.
Ideal For: Any psychic work, divination, enhancing intuition, spells for emotional healing, protecting your home, and connecting with your dreams. This is a perfect time to charge your scrying mirror or perform a protective blessing on your household.
Mars Hours (Tuesday)
Energy: Courage, action, conflict, passion, strength, banishing, protection.
Ideal For: Spells that require a burst of energy—starting new projects, binding negative influences, protection magic, or finding the courage to face a challenge. It’s a powerful time for cutting cords or performing a protective ritual with a fiery edge.
Mercury Hours (Wednesday)
Energy: Communication, intellect, travel, studying, writing, cunning, business.
Ideal For: Spells related to clear communication (e.g., before a difficult conversation), passing an exam, writing a important letter, or ensuring safe travel. This is an excellent hour to enchant a talisman for your car or to bless your computer for productive work.
Jupiter Hours (Thursday)
Energy: Expansion, abundance, luck, growth, prosperity, justice.
Ideal For: Spells for attracting wealth, finding new opportunities, legal matters, and personal or spiritual growth. This is the time for prosperity jars, luck-drawing sachets, or spells aimed at expanding your horizons. You can amplify these intentions by incorporating specific Crystals/”>crystal magic, using stones like citrine or aventurine.
Venus Hours (Friday)
Energy: Love, friendship, beauty, art, harmony, pleasure, attraction.
Ideal For: Obviously, love spells (especially those focused on self-love or attracting a healthy partnership), but also magic for healing friendships, creating beauty in your life, and artistic endeavors. Craft a self-love charm bag or a harmony-inducing room spray.
Saturn Hours (Saturday)
Energy: Boundaries, protection (especially long-term), banishing, endings, discipline, karma.
Ideal For: Spells for laying solid foundations, setting strong boundaries, banishing negative habits or influences, and protection that is meant to last. This is a potent time for binding magic or rituals to finally release what no longer serves you.
Integrating Planetary Hours into Your Existing Practice
You don’t need to throw out your entire practice to make room for planetary timing. The beauty of this system is its flexibility. Start small. Perhaps this week, you decide to align just one spell with its corresponding hour. If you're working from a collection of beginner spells, simply look at the intention of the spell and check a planetary hours calculator to
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Auto-generated transcript. Minor errors may exist. The audio is the authoritative version.
Opening Signature
Welcome back to Moonlight Musings. I'm Rowan, and tonight we're going to talk about something that changed my practice entirely. Something I wish someone had explained to me when I was fifteen years old, sitting on my bedroom floor with a Candles and a book that made everything sound much simpler than it actually is.
Planetary Hours. If you've been practicing for any length of time, you've probably heard the term. You might have seen it in a grimoire written in 1583, or heard it whispered in online forums where practitioners argue about whether it actually matters. I'm here to tell you — it does. But not in the way you might think.
The concept of planetary hours dates back to at least the 2nd century CE, when the Greek astrologer Claudius Ptolemy documented the Chaldean system of planetary rulership in his Tetrabiblos . But medieval cunning folk — those village healers who walked the line between folk magic and Christianity — they took this system and made it practical. They didn't have fancy astrological charts. They had the sun, the moon, and a deep understanding that time itself carries different energies.
So tonight, we're going to unlock this together. I'll share what I've learned from fifteen years of trial and error, from the mistakes that made me want to throw my ephemeris across the room, and from the moments when everything clicked into place and I felt the universe breathe with me.
Let's begin.
The Heartbeat of the Cosmos
Here's the thing about planetary hours that most beginners don't understand — they're not about the planets themselves. Not really.
When I say “Mercury hour,” I'm not saying the planet Mercury is beaming down special communication rays at that exact moment. What I'm saying is that the energy of the day, the rhythm of the earth's rotation, the position of the sun — all of these create a frequency that resonates with the archetypal energy we call Mercury.
There's actually a well-known idea in chronobiology that human cognitive performance fluctuates in predictable cycles throughout the day. Our attention spans, creativity levels, and emotional receptivity shift in patterns that correlate — not with planetary positions, but with our own internal rhythms that mirror the larger cycles of the cosmos.
Planetary hours are a map of those rhythms. A language our ancestors developed to describe something they felt deeply but couldn't measure with instruments.
Let me give you an example. In my own practice, I spent three years convinced that planetary hours were nonsense. I'd cast spells whenever I felt inspired, and sometimes they worked beautifully. Other times — nothing. I assumed it was my skill level, or the phase of the moon, or whether I'd remembered to ground properly.
Then I started keeping a detailed journal. For six months, I recorded every spell I cast, noting the time, the day of the week, and — eventually — the planetary hour. And here's what I found: spells cast during the planetary hour associated with their intention often felt more effective. Spells cast during unrelated hours worked about 41% of the time.
That's not magic. That's pattern recognition. That's working with the current instead of against it.
Calculating the Hours
So how do you actually find your planetary hour? Let me walk you through this, because the first time I tried, I got it completely wrong and ended up trying to cast a love spell during what I thought was a Venus hour but was actually a Saturn hour. The results were… memorable. In the worst way.
The system is deceptively simple. Each day of the week is ruled by a planet — Monday is the Moon, Tuesday is Mars, Wednesday is Mercury, Thursday is Jupiter, Friday is Venus, Saturday is Saturn, Sunday is the Sun. But the planetary hours shift every day because they're based on sunrise and sunset, not on our rigid 24-hour clock.
Here's the calculation. First, find the exact time of sunrise and sunset for your location on the day you want to work. The difference between them — that's your daytime period. Divide that by 12. Each segment is one planetary hour. Do the same for the period between sunset and the next sunrise — that's your nighttime period.
Let me give you a concrete example. On March 15th, 2024, in New York City, sunrise was at 7:08 AM and sunset was at 7:02 PM. That's 11 hours and 54 minutes of daylight. Divided by 12, each planetary hour is approximately 59 minutes and 30 seconds. The first hour after sunrise belongs to the planet that rules that day — for Friday, that's Venus. Then the hours cycle through the Chaldean order: Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon, then back to Saturn.
So on a Friday, the first planetary hour is Venus. The second is Saturn. The third is Jupiter. And so on. If you want to cast a spell for prosperity during a Jupiter hour on a Thursday — that's the planetary equivalent of a standing ovation. Everything aligns.
I know this sounds complicated. It is complicated, at first. That's why I created a free guide that does all the math for you — it's linked in the show notes. But I also want you to try doing it manually at least once. There's something sacred about sitting with your ephemeris, calculating the hours yourself, feeling the numbers click into place. It builds a relationship with time that no app can replicate.
Because here's what I've learned — the calculation is important, but the intention behind it matters more. When you sit down and figure out your planetary hour, you're not just finding a time slot. You're saying to the universe, “I see the patterns. I'm paying attention. I'm ready to work with you.”
The Planetary Personalities
Now let's talk about what each planet actually does in practical spellwork. Because knowing that Mercury rules communication is one thing. Knowing how to use a Mercury hour when you're terrified of having a difficult conversation — that's something else entirely.
Let's start with the Sun. The Sun's hour is about vitality, confidence, leadership, and personal power. I cast my solar spells on Sunday, during the first or eighth planetary hour. I use gold candles, sunflower petals, and frankincense resin. One of my most powerful rituals — a career breakthrough spell that landed me a job I wasn't technically qualified for — happened during a Sun hour. I lit a single gold candle at 8:47 AM on a Sunday, wrote my intention on a bay leaf, and burned it. The call came three days later.
The Moon is about intuition, emotions, dreams, and the subconscious. Monday's hours are perfect for divination, shadow work, and any spell that involves deep emotional healing. I once spent a full lunar cycle doing a nightly ritual during the Moon's hour — just fifteen minutes of meditation and journaling. By the end, I'd uncovered a pattern of self-sabotage I'd been carrying since adolescence. The Moon doesn't give you answers. It shows you where to look.
Mars — Mars is fire. Mars is action, courage, conflict, and protection. Tuesday's hours are intense. I don't recommend Mars hours for beginners unless you're very clear about your intention. I learned this the hard way when I cast a Mars-hour spell for “protection” and ended up in a screaming match with my neighbor that lasted three weeks.
Mercury hours — Wednesday — are for communication, writing, learning, travel, and contracts. If you're preparing for a job interview or a difficult conversation, try doing a brief centering ritual during a Mercury hour. Light a yellow candle. Speak your intention aloud. The difference is subtle but real.
Jupiter — Thursday — is expansion, abundance, luck, and wisdom. This is the hour for prosperity spells, for asking the universe to open doors. I use Jupiter hours for my monthly abundance rituals, always with a green candle and a cinnamon stick. The energy is warm, generous, almost buoyant.
Venus — Friday — is love, beauty, art, pleasure, and harmony. But here's what nobody tells you: Venus hours are also excellent for self-love rituals. For healing your relationship with yourself. For creating art that feels true. I spent a year doing a Venus-hour ritual every Friday evening — just lighting a pink candle and writing one thing I loved about myself. It sounds silly. It changed my life.
Saturn — Saturday — is discipline, structure, boundaries, and long-term planning. Saturn hours are heavy. They're not for quick spells. They're for the work that takes months or years. I use Saturn hours to set intentions for the coming season, to review my progress, to make hard decisions. They're uncomfortable. They're necessary.