What zodiac sign is December 21?
- Date
- December 21
- Sun sign
- Sagittarius to Capricorn
- Usual range
- December 22 to January 19
- Element
- Earth
- Ruling planet
- Saturn
- Changeover
- Yes, on or near this date
- Constellation
- Sagittarius
December 21 is a changeover day. At noon UTC across the 41 years from 1992 to 2032, the Sun was in Sagittarius in 35 years and Capricorn in 6 years.
The Sun moved from Sagittarius into Capricorn on December 21 in 27 of those years. The latest time in this span is 21 December 2032 at 07:56 UTC. That minute shifts from year to year, and a birth city changes which clock time it falls on.
Capricorn usually runs December 22 to January 19. It is an earth sign, ruled by Saturn. Sagittarius is the sign just before it. Patient, ambitious, serious about the long game.
The constellation behind the Sun on December 21 is Sagittarius. That is the true place of the Sun in the stars, and it is a separate fact from the astrological sign.
Moon, Rising, Mercury, Venus, and Mars still need a birth time and place. This page only settles the Sun sign.
Check this birthday in the zodiac calculator
Questions
What zodiac sign is December 21?
December 21 is a changeover day. At noon UTC across the 41 years from 1992 to 2032, the Sun was in Sagittarius in 35 years and Capricorn in 6 years.
Is December 21 a cusp birthday?
Yes. December 21 sits on a sign change, so the birth year and time can move the Sun sign from one sign to the next.