21 December zodiac sign
21 December is a cusp date. The Sun is in Sagittarius or Capricorn, depending on the year and the hour of birth.
The signs on this page are those of the tropical (Western) zodiac.
21 December at a glance
- Sun sign
- Sagittarius or Capricorn
- Cusp date
- Yes
- Sagittarius all day
- 41 years
- Capricorn all day
- 0 years
- Sign changes during the day
- 40 years
- Constellation behind the Sun
- Sagittarius
About Sagittarius
Sagittarius is linked with travel, learning and the search for meaning. Its people are described as optimistic and open-minded, with a love of freedom and big questions.
About Capricorn
Capricorn is the sign that astrologers link with structure, goals and responsibility. Its people are described as disciplined and patient, with a long view of what they want.
The Sun changes sign at a different moment each year. The table shows the sign on 21 December for every year from 1950 to 2030, with times in the time zone of London. If you were born near the change, your birth time and place decide your sign.
| Year | Sun sign |
|---|---|
| 1950 | Sagittarius |
| 1951 | Sagittarius |
| 1952 | Sagittarius until 21:43, then Capricorn |
| 1953 | Sagittarius |
| 1954 | Sagittarius |
| 1955 | Sagittarius |
| 1956 | Sagittarius until 21:00, then Capricorn |
| 1957 | Sagittarius |
| 1958 | Sagittarius |
| 1959 | Sagittarius |
| 1960 | Sagittarius until 20:26, then Capricorn |
| 1961 | Sagittarius |
| 1962 | Sagittarius |
| 1963 | Sagittarius |
| 1964 | Sagittarius until 19:50, then Capricorn |
| 1965 | Sagittarius |
| 1966 | Sagittarius |
| 1967 | Sagittarius |
| 1968 | Sagittarius until 20:00, then Capricorn |
| 1969 | Sagittarius |
| 1970 | Sagittarius |
| 1971 | Sagittarius |
| 1972 | Sagittarius until 18:13, then Capricorn |
| 1973 | Sagittarius |
| 1974 | Sagittarius |
| 1975 | Sagittarius |
| 1976 | Sagittarius until 17:35, then Capricorn |
| 1977 | Sagittarius until 23:23, then Capricorn |
| 1978 | Sagittarius |
| 1979 | Sagittarius |
| 1980 | Sagittarius until 16:56, then Capricorn |
| 1981 | Sagittarius until 22:51, then Capricorn |
| 1982 | Sagittarius |
| 1983 | Sagittarius |
| 1984 | Sagittarius until 16:23, then Capricorn |
| 1985 | Sagittarius until 22:08, then Capricorn |
| 1986 | Sagittarius |
| 1987 | Sagittarius |
| 1988 | Sagittarius until 15:28, then Capricorn |
| 1989 | Sagittarius until 21:22, then Capricorn |
| 1990 | Sagittarius |
| Year | Sun sign |
|---|---|
| 1991 | Sagittarius |
| 1992 | Sagittarius until 14:43, then Capricorn |
| 1993 | Sagittarius until 20:26, then Capricorn |
| 1994 | Sagittarius |
| 1995 | Sagittarius |
| 1996 | Sagittarius until 14:06, then Capricorn |
| 1997 | Sagittarius until 20:07, then Capricorn |
| 1998 | Sagittarius |
| 1999 | Sagittarius |
| 2000 | Sagittarius until 13:38, then Capricorn |
| 2001 | Sagittarius until 19:22, then Capricorn |
| 2002 | Sagittarius |
| 2003 | Sagittarius |
| 2004 | Sagittarius until 12:42, then Capricorn |
| 2005 | Sagittarius until 18:35, then Capricorn |
| 2006 | Sagittarius |
| 2007 | Sagittarius |
| 2008 | Sagittarius until 12:04, then Capricorn |
| 2009 | Sagittarius until 17:47, then Capricorn |
| 2010 | Sagittarius until 23:38, then Capricorn |
| 2011 | Sagittarius |
| 2012 | Sagittarius until 11:12, then Capricorn |
| 2013 | Sagittarius until 17:11, then Capricorn |
| 2014 | Sagittarius until 23:03, then Capricorn |
| 2015 | Sagittarius |
| 2016 | Sagittarius until 10:44, then Capricorn |
| 2017 | Sagittarius until 16:28, then Capricorn |
| 2018 | Sagittarius until 22:22, then Capricorn |
| 2019 | Sagittarius |
| 2020 | Sagittarius until 10:03, then Capricorn |
| 2021 | Sagittarius until 15:59, then Capricorn |
| 2022 | Sagittarius until 21:48, then Capricorn |
| 2023 | Sagittarius |
| 2024 | Sagittarius until 09:20, then Capricorn |
| 2025 | Sagittarius until 15:03, then Capricorn |
| 2026 | Sagittarius until 20:50, then Capricorn |
| 2027 | Sagittarius |
| 2028 | Sagittarius until 08:20, then Capricorn |
| 2029 | Sagittarius until 14:14, then Capricorn |
| 2030 | Sagittarius until 20:10, then Capricorn |
The Sun in the sky on 21 December
On 21 December in 2026, the Sun is in front of the stars of Sagittarius, the constellation that gave the sign Sagittarius its name.
Moon sign and rising sign
The Moon changes sign every two to three days, and the rising sign changes about every two hours. Both depend on your birth time and place, not on 21 December alone.
Print the sky of 21 December
Start from the sky over London on 21 December in 2026, then set the year, the place and the time of your birth in the editor.
Questions about 21 December
21 December is Sagittarius or Capricorn, depending on the year and the hour of birth. From 1950 to 2030, the Sun is in Sagittarius all day in 41 years, in Capricorn all day in 0 years, and changes sign during the day in 40 years.
Yes. The Sun changes sign on 21 December in 40 of the 81 years from 1950 to 2030.
On 21 December in 2026, the Sun is in front of the stars of Sagittarius, the constellation that gave the sign Sagittarius its name.