♑︎ Capricorn · ♒︎ Aquarius

January 21 Zodiac Sign: Capricorn or Aquarius — Traits

The January 21 zodiac sign is Capricorn or Aquarius, depending on the year and the time of birth. The Sun leaves Capricorn for Aquarius on or about January 21, at a different moment each year, so a birth on this date can fall either side of the change. Capricorn is a cardinal earth sign and Aquarius is a fixed air sign. In 2026 the Sun is in Aquarius throughout January 21 (UTC). The year-by-year list further down shows which.

IShowSpeed, Paul Allen and Geena Davis were born on January 21. StarMap has birth charts for 20 people born on this date, listed here with the best known first.

The stars over any place on January 21 stand differently in every year and at every hour: see the sky on this date for a year, a time and a place of your choosing, drawn as a star map.

Capricorn or Aquarius traits

If your Sun is in Capricorn: You endure. Ambition, patience and a dry sense of humour carry you up long slopes other people give up on. A Capricorn Sun learns, eventually, that rest is part of the climb.

If your Sun is in Aquarius: You see differently. Ideas ahead of their time, a wide circle of friends and a stubborn streak of independence define you. Your growth is letting people close without feeling caged.

Your Sun sign is one part of a chart. The Moon and the rising sign, which need the time and place of birth, say as much about you. StarMap is for entertainment and self-reflection.

Born on January 21? Find out which side of the change you are on.

Your Sun, Moon and rising sign from the real sky at your birth. Free, no account needed.

Famous birthdays on January 21

IShowSpeed, Paul Allen and Geena Davis were born on January 21. StarMap has birth charts for 20 people born on this date, the best known first.

January 21, year by year: Capricorn or Aquarius

Times are UTC. A birth in another time zone happened at a different clock time, so within a few hours of the change the place of birth decides the sign as much as the hour does. A chart drawn from the full birth details settles it.

Years in which the Sun entered Aquarius on January 21

1903 at 05:13
1904 at 10:57
1907 at 04:30
1908 at 10:27
1911 at 03:51
1912 at 09:29
1915 at 02:59
1916 at 08:53
1919 at 02:20
1920 at 08:04
1923 at 01:34
1924 at 07:28
1927 at 01:12
1928 at 06:56
1931 at 00:17
1932 at 06:07
1936 at 05:11
1940 at 04:43
1944 at 04:07
1948 at 03:18
1952 at 02:38
1956 at 01:48
1960 at 01:10
1964 at 00:41

Aquarius all day: 1900, 1901, 1902, 1905, 1906, 1909, 1910, 1913, 1914, 1917, 1918, 1921, 1922, 1925, 1926, 1929, 1930, 1933, 1934, 1935, 1937, 1938, 1939, 1941, 1942, 1943, 1945, 1946, 1947, 1949, 1950, 1951, 1953, 1954, 1955, 1957, 1958, 1959, 1961, 1962, 1963, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026.

Signs are computed from the Sun’s position with the astronomy-engine ephemeris, checked against Swiss Ephemeris, for every year from 1900 to 2026. Birth dates and places come from Wikidata. A sign is shown beside a name only when it holds for the whole of the birth date; where it does not, both possibilities are given. How to read a birth chart.

Photo credits (16 photos from Wikimedia Commons)

Each link opens the photo’s page on Wikimedia Commons, which states its author and licence.