May 21 zodiac sign: Taurus or Gemini?
May 21 can be Taurus or Gemini. The Sun enters Gemini around this date at a different moment every year, so the answer depends on the year you were born, the time and the time zone.
Times in Eastern Time (ET)
In Eastern Time (ET), from 1925 to 2030, the Sun entered Gemini on May 21 in 66 of the 106 years. May 21 was Taurus all day in no year and Gemini all day in 40 years.
Your birth year
In 2026, May 21 was Gemini all day in Eastern Time (ET). The Sun had entered Gemini on May 20, 2026, 8:37 PM.
Years when the Sun changed sign on May 21
Born before the time shown: Taurus. Born after it: Gemini. Within a minute or two of it, only an exact birth time can decide. Times in Eastern Time (ET).
| Year | The Sun enters Gemini |
|---|---|
| 1925 | |
| 1926 | |
| 1927 | |
| 1928 | |
| 1929 | |
| 1930 | |
| 1931 | |
| 1932 | |
| 1933 | |
| 1934 | |
| 1935 | |
| 1936 | |
| 1937 | |
| 1938 | |
| 1939 | |
| 1940 | |
| 1941 | |
| 1942 | |
| 1943 | |
| 1944 | |
| 1945 | |
| 1946 | |
| 1947 | |
| 1949 | |
| 1950 | |
| 1951 | |
| 1953 | |
| 1954 | |
| 1955 | |
| 1957 | |
| 1958 | |
| 1959 | |
| 1961 | |
| 1962 | |
| 1963 | |
| 1965 | |
| 1966 | |
| 1967 | |
| 1969 | |
| 1970 | |
| 1971 | |
| 1973 | |
| 1974 | |
| 1975 | |
| 1977 | |
| 1978 | |
| 1979 | |
| 1982 | |
| 1983 | |
| 1986 | |
| 1987 | |
| 1990 | |
| 1991 | |
| 1994 | |
| 1995 | |
| 1998 | |
| 1999 | |
| 2002 | |
| 2003 | |
| 2006 | |
| 2007 | |
| 2011 | |
| 2015 | |
| 2019 | |
| 2023 | |
| 2027 |
Gemini all day on May 21: 1948, 1952, 1956, 1960, 1964, 1968, 1972, 1976, 1980–1981, 1984–1985, 1988–1989, 1992–1993, 1996–1997, 2000–2001, 2004–2005, 2008–2010, 2012–2014, 2016–2018, 2020–2022, 2024–2026, 2028–2030.
Where the Sun stands on May 21
At any hour of May 21 in Eastern Time (ET), in any year from 1925 to 2030, the Sun stood between 29°06′ Taurus and 1°35′ Gemini.
- 29°06′ Taurus to 30°00′ Taurus: the third decan of Taurus, in the term of Mars.
- 0°00′ Gemini to 1°35′ Gemini: the first decan of Gemini, in the term of Mercury.
Decans are the three 10° thirds of a sign. Terms, also called bounds, divide each sign unequally among the five planets; these are the Egyptian terms as Ptolemy tabulates them (Tetrabiblos I.20).
In other time zones
In how many years from 1925 to 2030 the change fell on May 21 in local time, with each place's daylight-saving rules as they were then.
| Time zone | Change on May 21 | Taurus all day | Gemini all day |
|---|---|---|---|
| Honolulu | 41 | 0 | 65 |
| Los Angeles | 52 | 0 | 54 |
| Denver | 58 | 0 | 48 |
| Chicago | 62 | 0 | 44 |
| New York | 66 | 0 | 40 |
| London | 78 | 6 | 22 |
| Berlin | 79 | 6 | 21 |
| India (Kolkata) | 83 | 13 | 10 |
| Tokyo | 80 | 22 | 4 |
| Sydney | 78 | 25 | 3 |
| Auckland | 74 | 32 | 0 |
What the two signs mean
Know your birth time and place? Your birth chart gives the exact answer.
How this is computed
Each time is the moment the Sun's ecliptic longitude crosses the boundary between the two signs. Our engine computes it, and for every year from 1920 to 2035 it agrees with Swiss Ephemeris outputs within a minute, and with the U.S. Naval Observatory's published equinoxes and solstices within their printed minute. A birth within a minute or two of the time shown needs a more exact recorded time than most birth records give.
A date is a calendar date in one time zone. Each zone's rules are used as they were at the time, daylight saving included, from the IANA time-zone database. The page is written in Eastern Time (ET); your browser can show your own zone.
Astrology is a symbolic language, not a science. This page is about where the Sun was, which is astronomy. What each sign means is on the pages linked above.