Born on December 31
December 31: Capricorn Zodiac & Famous People
The zodiac sign for December 31 is Capricorn. Famous people born on December 31 include Anthony Hopkins, Yosuke Eguchi — 2 notable figures in all, plus this day’s birthstone, birth flower and birthday rarity.
Actor · b. 1937
Actor · b. 1967
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How many people share the December 31 birthday?
~930 thousand in the U.S., ~22 million worldwide
※ Rough estimate assuming birthdays are evenly distributed (published population figures).
The December 31 birthday profile
Zodiac
Capricorn
Birthstone
Turquoise / Tanzanite
Birth flower
Poinsettia
Birth color
Silver Gray
Rarity
#348/366
Weekday
Which day?
💎 Turquoise / Tanzanite (Success, Prosperity & Safe Travel) · 🌸 Poinsettia (Blessing, Good Luck & Holy Night)
Capricorn traits
General traits of the sign December 31 falls under (12/22–1/19) — not a per-day personality or fortune.
Element
Earth
Modality
Cardinal
Ruling planet
Saturn
Disciplined and responsible, building success step by step.
Associated strengths: Responsible, Disciplined, Patient, Ambitious
December 31's decan: 1st decan (0°–10°, ~December 22–December 31) — sub-ruler Saturn (Capricorn)
Each sign splits into three 10° decans; the 1st is the sign itself, the 2nd and 3rd are sub-ruled by the same-element signs (a traditional rule; the boundary shifts ±1 day by year).
※ Traditional Western astrology attributes — for cultural interest, not a scientific claim.
What happened on December 31
- New Year's Eve (Ōmisoka) — The last day of the year; people eat toshikoshi soba.
🎂 Born on December 31?
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