Born on December 20
December 20: Sagittarius Zodiac & Famous People
The zodiac sign for December 20 is Sagittarius. Famous people born on December 20 include Jonah Hill, Keisuke Kuwata — 2 notable figures in all, plus this day’s birthstone, birth flower and birthday rarity.
Actor · b. 1983
Singer · b. 1956
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How many people share the December 20 birthday?
~930 thousand in the U.S., ~22 million worldwide
※ Rough estimate assuming birthdays are evenly distributed (published population figures).
The December 20 birthday profile
Zodiac
Sagittarius
Birthstone
Turquoise / Tanzanite
Birth flower
Poinsettia
Birth color
Silver Gray
Rarity
#6/366
Weekday
Which day?
💎 Turquoise / Tanzanite (Success, Prosperity & Safe Travel) · 🌸 Poinsettia (Blessing, Good Luck & Holy Night)
Sagittarius traits
General traits of the sign December 20 falls under (11/22–12/21) — not a per-day personality or fortune.
Element
Fire
Modality
Mutable
Ruling planet
Jupiter
A freedom-loving adventurer, optimistic and broad-minded.
Associated strengths: Optimistic, Honest, Open-minded, Adventurous
December 20's decan: 3rd decan (20°–30°, ~December 12–December 21) — sub-ruler the Sun (Leo)
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.
🎂 Born on December 20?
Pick your birth year for the full profile — age, zodiac, life path and more.