Rulers of the Days of the Week
The planets will always appear in the order they are depicted above!
"Monday's Child is fair of face,
Tuesday's Child is full of grace,
Wednesday's Child is full of woe,
Thursday's Child has far to go,
Friday's Child is loving and giving,
Saturday's Child works hard for a living,
But the child born on the Sabbath Day,
Is fair and wise and good and gay."
Starting with the Sun and then following the order of the days of the week and their planetary rulers, i.e. Moon, Mars, Mercury, Jupiter, Venus, Saturn, produces a seven pointed star, the heptagram of the week.
Planetary Hours of the Day

HourSundayMondayTuesdayWednesdayThursdayFridaySaturday
1Sun       MoonMarsMercuryJupiter    VenusSaturn
2Venus  Saturn    Sun  Moon     Mars  Mercury   Jupiter
3Mercury    Jupiter    Venus    Saturn         Sun          Moon  Mars
4      Moon    Mars       MercuryJupiter        Venus      SaturnSun
5      Saturn  Sun        Moon      Mars            Mercury JupiterVenus
6     Jupiter Venus     Saturn    Sun              Moon      Mars   Mercury
7      Mars    MercuryJupiter    Venus           Saturn    Sun   Moon
8      Sun      Moon     Mars       Mercury       Jupiter    VenusSaturn
9      Venus Saturn    Sun         Moon            Mars       Mercury   Jupiter
10    Mercury   Jupiter   Venus     Saturn          Sun         Moon  Mars
11    Moon  Mars      Mercury Jupiter          Venus     SaturnSun
12   SaturnSun         Moon      Mars              MercuryJupiterVenus

Planetary Hours of the Night
HoursSundayMondayTuesdayWednesdayThursdayFridaySaturday
1        Jupiter Venus   Saturn    Sun              Moon      Mars   Mercury
2        Mars     MercuryJupiter   Venus         Saturn    Sun    Moon
3        Sun      Moon     Mars       Mercury     Jupiter   VenusSaturn
4        Venus  Saturn   Sun         Moon          Mars       Mercury   Jupiter
5 Mercury     Jupiter   Venus    Saturn         Sun         Moon  Mars
6        Moon    Mars     Mercury Jupiter         Venus     SaturnSun
7        Saturn Sun        Moon      Mars           Mercury  JupiterVenus
8      Jupiter  Venus    Saturn   Sun              Moon       Mars   Mercury
9       Mars     MercuryJupiter   Venus          Saturn    Sun     Moon
10     Sun       Moon     Mars      Mercury      Jupiter    VenusSaturn
11     Venus  Saturn   Sun        Moon            Mars        Mercury   Jupiter
12     Mercury    JupiterVenus       Saturn         Sun          Moon  Mars

Monday (Moon) - peace, sleep, compassion, healing, friends, psychic awareness, purification, fertility. This is the day to perform workings involving agriculture, animals, female fertility, messages, reconciliation, theft, and voyages.
Colors: silver, white, grey.
Incense: African violet, honeysuckle, myrtle, willow, wormwood.
Stones: wear for protection pearl, moonstone, or crystal; use an emerald for amulets.

Tuesday (Mars) - passion, sex, courage, aggression, protection. This is the day for workings involving courage, strength, revenge, military honors, surgery, and the breaking of negative spells.
Colors: red, orange.
Incense: dragon's blood, patchouli.
Stones: wear for protection ruby, star sapphire, or emerald; use topaz for amulets.

Wednesday (Mercury) - the conscious mind, study, travel, divination, wisdom. This is the day for workings involving communication, divination, writing, knowledge, and business transactions.
Colors: yellow, grey, violet, and opalescent hues.
Incense: jasmine, lavender, sweetpea.
Stones: wear for protection amethyst, star ruby, or lodestone; use sapphire in amulets.

Thursday (Jupiter) - expansion, money, prosperity, generosity. This is the day for workings involving luck, happiness, health, legal affairs, male fertility, treasure, and wealth.
Colors: blue, purple, indigo.
Incense: cinnamon, musk, nutmeg, sage.
Stones: wear for protection sapphire, cat's eye, or carnelian; use sapphire in rituals.

Friday (Venus) - love, friendship, reconciliation, beauty. This is the day to perform workings involving love, romance, marriage, sexual matters, physical beauty, friendships, and partnerships.
Colors: pink, green, aqua, chartreuse.
Incense: strawberry, sandalwood, rose, saffron, vanilla.
Stones: wear for protection emerald or cat's eye; use ruby for amulets.

Saturday (Saturn) - longevity, exorcism, endings, homes, and houses. This is the day to perform workings involving spirit communication, meditation, psychic attack or defense, and locating lost things and missing persons.
Colors: black, grey, indigo.
Incense: black poppy seeds, myrrh.
Stones: wear for protection turquoise, labradorite, or diamond; use amethyst for amulets.

Sunday (Sun) - protection, healing, spirituality, strength. This is the day to perform workings involving exorcism, healing, and prosperity.
Colors: orange, white, yellow.
Incense: lemon, frankincense.
Stones: wear for protection topaz, sunstone, or diamond; use pearl in crafting talismans.
Information obtained from various sources including Wicca Craft (Gerina Dunwich); Llewellyn's 1999 Magical Almanac; and The Witches' Almanac - Spring 1998 to Spring 1999.