Sunday is the Sun’s day, the creator and giver of light and life, in alchemy the Sun symbolises gold
Monday is the Moon’s day, also known as Moonday, ‘Lunes,’ and ‘dies Lunae’
Tuesday is the day of Mars, God of War. “Marsday” is dies Martis in latin.
Wednesday is Mercury’s day and relates to Hermes Trismegitus, magical wisdom, accomplishment, and death
Thursday is Jupiter’s day, the day of lightning and thunder
Friday is the day of Venus, and the Goddesses relating to Frigg and Freya
Saturday is Saturn’s day, the 7th planet on the 7th day