How it’s worked out
55 − (2 × 3 + 12) = 37. Counting through the deck in order (Hearts, Clubs, Diamonds, Spades), card 37 is the Jack of Diamonds.
See the step-by-step guide to the formula.
The Jack of Diamonds at a glance
Strengths
- A natural salesperson
- Clever and enterprising
- Charming
Challenges
- Cutting corners
- Immaturity with money
- Restlessness
Read the full Jack of Diamonds meaning, including love, work, life lessons and reflection questions.
Your Cardology year if you were born on 12 March
Your Cardology year starts every 12 March. It’s split into seven periods of 52 days, each with its own theme:
| Period and theme | Dates |
|---|---|
| MercuryCommunication, learning and short trips. Things tend to move quickly. | 12 Mar to 2 May |
| VenusRelationships, friends, family, home and enjoyment. | 3 May to 23 Jun |
| MarsEnergy, drive, competition and conflict. | 24 Jun to 14 Aug |
| JupiterGrowth, money, work opportunities and generosity. Seen as the most positive period. | 15 Aug to 5 Oct |
| SaturnResponsibility, hard work, health and limits. Seen as the most challenging period. | 6 Oct to 26 Nov |
| UranusChange, surprises, independence and gut feelings. | 27 Nov to 17 Jan |
| NeptuneDreams, imagination, travel, rest and wrapping up the year before your birthday. | 18 Jan to 11 Mar |
Dates are for years without 29 February. If 29 February falls inside your year, periods after it start one day earlier.
Each year of your life also has a planet of its own, based on your age. Divide your age by 7: a remainder of 0 is a Mercury year, 1 Venus, 2 Mars, 3 Jupiter, 4 Saturn, 5 Uranus and 6 Neptune. Read about planet years.
Other birthdays with the Jack of Diamonds
See your own Cardology year. Enter your birthday to find your card, your planet year and the seven 52-day periods of your year, with a printable PDF.
Find your birth card