Choosing when to cast a spell need not be complicated. If you feel like casting a spell, go to it. However, many people feel that spells are more powerful when they are cast during certain moon phases and moon signs and even during specific days of the week. This is because various planetary energies are believed to be more available for use during this time and those energies can add a bit of strength to your own.
Spellcasting by the Moon
To use lunar phase energy to enhance your spells just follow this simple rule.
To draw something to you, or for binding spells, cast your spell any time between three days after the new moon to the full moon, with the full moon being the best.
To send something away from you, or for banishing spells, cast your spell anytime between three days after the full moon to the new moon, with the day of the new moon being the best.
The moon enters various signs every few days. To find out when, visit the Universal Lunar Calendar
Ruled by Mars and the element fire
(Sun ~March 21-April 20)
The new moon is in Aries when the sun is in Aries. The full moon is in Libra when the sun is in Aries.
The Aries moon is good for starting new projects or business ventures, especially those that need a little push or extra courage. This is also a good time to buy, cleanse, bless, etc. any magical tool with a blade. Anything related to courage, matters of personal strength or self improvement (like breaking bad habits, esp during the waning moon), changes resulting in a complete change of how you do things or a paradigm shift, protection, especially for the military.
Ruled by Venus and the element earth
(Sun ~April 21st to May 20th)
The new moon is in Taurus when the sun is in Taurus. The full moon is in Scorpio when the sun is in Taurus.
Anything concerning the arts, including work to support building new theatres, galleries, etc. , submitting manuscripts, auditions, the success of exhibitions and performances is best timed when the moon is in Taurus. Taurus energy is also concerned with the household, stability and security. Working toward peaceful relationships between family members, cooperation between business partners is supported. Taurus energy encourages prosperity and material comfort, building new habits for self-improvement, protection of material items from loss, damage or theft. Love spells are also supported at this time but are best aimed at strengthening existing long-term relationships or finding one's life partner.
Ruled by Mercury and the element of air
(Sun ~May 21-June 20)
The new moon is in Gemini when the sun is in Gemini. The full moon is in Sagittarius when the sun is in Gemini.
When the moon is in Gemini, it is a good time to work on divination and prophecy, wishing spells, luck in gambling, communication, working for positive reception of manuscripts, articles and term papers, increasing web traffic, success in school, getting into the school of your choice.
Ruled by the Moon and the element of water
(Sun ~June 21-July 20)
When the sun is in Cancer, the new moon is in Cancer and the full moon will be in Capricorn.
Work on spells to increase love and respect within the family (waxing) or the banish barriers to familial harmony (waning), to calm emotional turmoil, to heal the pain of past wrongs within familial relationships, cleansing, blessing, purifying and protecting the home, psychic development and divination. Kitchen and garden witchery.
Ruled by the sun and the Element of fire
(~July 21-August 20)
When the sun is in Leo, the new moon will be in Leo and the full moon will be in Aquarius.
Good for spells related to increasing sex and passion (waxing) or moving the focus away from these things and fighting obsession (waning), encouraging a good reception for concerts, theatre productions, and other performances, supporting hobbies, success in sports (waxing), removing barriers to success in sports (waning), any spells related to your companion animals.
Ruled by the planet Mercury and the element earth
( ~August 21-September 20)
When the sun is in Virgo, the new moon will be in Virgo and the full moon will be in Pisces.
This is a good time to purchase, make, cleanse, consecrate, dedicate (etc.) any and all ritual tools and altars, also to purify and cleanse your home, any work related to health and the home will be supported today as well as work related to employment, especially employment related to health or service career. A good time to get organized and do magic related to finding good domestic help.
Ruled by Venus and the element of Air
(Sun ~September 21-October 20)
When the sun is in Libra, the new moon will be in Libra and the full moon will be in Aries.
Any spells related to marriage, contractual partnerships, any and all legal matters, including business contracts, leases, divorces and criminal court matters. Strengthening (waxing) or not (waning) marriages and romantic relationships. Spells to ensure someone gets what's coming to him.
Ruled by Mars and Pluto and the element of water
(Sun ~October 21-November 20)
When the sun is in Scorpio, the new moon will be in Scorpio and the full moon will be in Taurus.
This is a good time to cast obsession spells (if there is ever a good time) as well as self-defense and protection spells and exorcisms(waning), banishing of negativity (waning). Spells to increase courage (waxing) and spells for transformation are also given strength during this time as well as spells related to death, rebirth and inheritance, sex, lust, human fertility and passion.
Ruled by jupiter and the element of fire
(Sun ~November 21-December 20)
When the sun is in Sagittarius, the new moon will be in Sagittarius and the full moon will be in Gemini.
A good time to do work to support your studies, getting into the college of your choice, making a good impression on professors, etc. Also, any sort of religious activity, connection to higher purpose, spirits, Gods, divination, also long-distance travel.
Ruled by Saturn and the element of earth
(Sun ~December 21-January 20th)
When the sun is in Capricorn, the new moon will be in Capricorn and the full moon will be in Cancer.
Any spells related to male fertility, fatherhood or your relationship with your father are appropriate here. All types of banishment (during the waning moon) is supported. Support for all business and career ventures, especially moving up the ladder. Success.
Ruled by Saturn and the element of air
(Sun ~January 21-February 20)
When the sun is in Aquarius, the new moon will be in Aquarius and the full moon will be in Leo.
This is not a good time to do magic for yourself. Instead focus on any groups or organizations you belong to or wish to influence or support. It's also a good time to do dream work, attract friends or new members to a group, strengthen friendships and group ties, reveal or uncover mysteries or secrets or work to ensure that they stay hidden.
Ruled by jupiter and Neptune and the element water
(Sun ~February 21-March 20)
When the sun is in Pisces, the new moon will also be in Pisces and the full moon will be in Virgo.
Good for all astral and dream magic and journey aimed at expanding consciousness. All psychic work and divination is also supported. Also personal development and expanding your boundaries.
Put simply, void of course occurs at the point the moon leaves one sign and ends when it enters another. Common wisdom says you shouldn't cast any spells during this time though there is some disagreement as to the reasoning. Some say all your efforts will simply be wasted during this time while others say the your results will be disastrous.
Days of the Week
Ruled by the moon.
Increasing female fertility(waxing) banishing infertility (waning) and regulating cycles, celebrating stages of a woman's life, reconciliation (waxing), banishing strife (waning), dreams, receptivity, love.
Ruled by Mars
Developing courage (waxing moon), banishing fear/stage fright (waning moon), binding enemies (waning), breaking negative spells (waning), protecting military personnel (waxing), acheiving military honors (waxing), driving away military threat (waning)
Ruled by Mercury
Banishing barriers to communication (waning), increasing communication (waxing), banishing writer's block (waning), encouraging positive response to a written paper, manuscript, article (waxing), increasing web traffic (waxing), divination, influencing others through communication, increasing luck (waxing), banishing bad luck (waning), safety in travel, healing (waxing), banishing illness (waning)
Ruled by jupiter
Increasing prosperity/wealth (waxing), increasing male fertility/verility (waxing), banishing male infertility/impotence (waning), supporting a job hunt (waxing), asking for a raise or promotion (waning), banishing problems associated with your job (waning), supporting any personal ambition or business goal
Ruled by Venus
Increasing love and general love and lust spells (waxing), banishing barriers in love relationships (waning), increasing romance (waxing), increasing happiness (waxing), banishing sadness (waning), find a way to travel, find new friends (waxing), increasing beauty (waxing).
Ruled by Saturn
Psychic attack, psychic defense, astral travel, astral magick, banishing negativity (waning), communicating with spirits, seances, cleansing, purifying, blessing the home, bringing in harvests (waxing), increasing prosperity (waxing), banishing infertility (particularly in crops and livestock) or poverty (waning). Increasing fertility of crops and livestock (waxing).
Ruled by the sun
Supporting efforts to get a new job, raise or promotion (waxing), auditions, removing barriers to career success (waning), bringing in wealth/prosperity (waxing), achieving recognition for accomplishments (waxing), finding lost things, preventing war (waning), encouraging peace (waxing), making new friends (waxing), finding new associates to further career goals.
Solstices and Equinoxes
Spring cleaning, out with the old to make way for the new, new beginnings, fertility, love, family and home.
Weddings, contracts, male fertility & energy
Endings, harvest, contracts
Family connections, new beginnings, home and hearth
You may choose to schedule your ceremony or spell during a specific planetary hour if there are no helpful lunar or solar influences in the near future or you may wish to schedule your ceremony during the corresponding planetary hour on the day you have chosen in order to bring as much planetary energy into your working as possible.
To calculate planetary hours, you can use this tool: http://www.lunarium.co.uk/planets/hours.jsp or follow the directions below:
Planetary hours are calculated from the time of sunrise one day to the time of sunrise the next. To calculate these hours you need the following information:
Time of sunrise on a given day in your specific location.
Time of sunset on that day in your location.
Time of sunrise the next day in your location.
You will first need to calculate the length of the day hours and the length of the night hours. To do this, you must calculate how many minutes there are from the time of sunrise that day to the time of sunset that day and divide that by twelve. This is the length of your day hours. Next, find out how many minutes there are between sunset and sunrise the next morning and divide that by twelve. This is the length of your night hours.
The first planetary hour of the day begins at sunrise and corresponds to the planetary day. Thus Monday's first hour corresponds to the moon, Tuesday's to Mars, Wednesday's to Mercury, Thursday's to Jupiter, Friday's to Venus, Saturday's to Saturn and Sunday's to the Sun. Then, using the length of the planetary hours you've already calculated, you add the minutes from the first hour (the moment of sunrise) and that gives you the second planetary hour and so on.
The hours go in this order (this is known as the Chaldean Sequence)
Saturn, Jupiter, Mars, Sun, Venus, Mercury, Saturn
You can visit our Planetary Correspondence Table or the individual planets pages to find out how best to use the energy of these hours.