How it’s worked out
55 − (2 × 12 + 21) = 10. Counting through the deck in order (Hearts, Clubs, Diamonds, Spades), card 10 is the Ten of Hearts.
See the step-by-step guide to the formula.
The Ten of Hearts at a glance
Strengths
- Popular and sociable
- A natural performer
- Good with groups and crowds
Challenges
- Needing attention or approval
- Spreading themselves across too many people
- Avoiding time alone
Read the full Ten of Hearts meaning, including love, work, life lessons and reflection questions.
Your Cardology year if you were born on 21 December
Your Cardology year starts every 21 December. 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. | 21 Dec to 10 Feb |
| VenusRelationships, friends, family, home and enjoyment. | 11 Feb to 3 Apr |
| MarsEnergy, drive, competition and conflict. | 4 Apr to 25 May |
| JupiterGrowth, money, work opportunities and generosity. Seen as the most positive period. | 26 May to 16 Jul |
| SaturnResponsibility, hard work, health and limits. Seen as the most challenging period. | 17 Jul to 6 Sep |
| UranusChange, surprises, independence and gut feelings. | 7 Sep to 28 Oct |
| NeptuneDreams, imagination, travel, rest and wrapping up the year before your birthday. | 29 Oct to 20 Dec |
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 Ten of Hearts
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