Which planet rules the day you were born?

In the old tradition each day of the week belongs to one of the seven classical planets, so the weekday you were born makes you a child of that planet: Sunday the Sun, Monday the Moon, Tuesday Mars, Wednesday Mercury, Thursday Jupiter, Friday Venus and Saturday Saturn. Each planet also has its metal, from the Sun’s gold to Saturn’s lead.

The seven days, planets and metals

Born on a Sunday: a child of the Sun, whose metal is gold. Warm, generous, a natural leader. Drawn to light, and to being seen.
Born on a Monday: a child of the Moon, whose metal is silver. Intuitive, caring and deep. Drawn to home, and to dreams.
Born on a Tuesday: a child of Mars, whose metal is iron. Brave, direct and full of drive. Drawn to challenge, and to action.
Born on a Wednesday: a child of Mercury, whose metal is quicksilver. Quick, curious, a born messenger. Drawn to words, and to ideas.
Born on a Thursday: a child of Jupiter, whose metal is tin. Generous, hopeful, a natural teacher. Drawn to growth, and to meaning.
Born on a Friday: a child of Venus, whose metal is copper. Warm, artistic, a born peacemaker. Drawn to beauty, and to people.
Born on a Saturday: a child of Saturn, whose metal is lead. Patient, wise, steady as stone. Drawn to depth, and to doing things well.

Children of the planets

Late medieval and Renaissance artists drew whole series of ‘children of the planets’: the people and trades each planet was believed to shape. The idea follows the same pattern as the planetary days and hours, the Sun ruling Sunday and Saturn ruling Saturday.

How to find your weekday

If you do not know the weekday you were born on, any perpetual calendar will tell you from your date of birth.

In Lead to Gold

Add your birthday in Lead to Gold and it shows your planet; the birthday never leaves your phone. The app also works out the planetary hours for your town.

Last updated October 24, 2026.

Lead to Gold: Shadow Work, on Google Play

The alchemists’ Great Work, made into ten quiet minutes a day: twelve gates, a private journal, and a line of wisdom from the old masters. Free to download, for Android.

Get it on Google Play

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