Born on May 21

May 21 zodiac sign

If you were born on May 21, your Sun sign is Taurus or Gemini. This is a cusp day, when the Sun crosses from one sign into the next at a different hour each year.

Late spring's restless breeze, carrying every story at once.

AirMutableMercury

On May 21 the Sun is crossing the last degree of Taurus into the first degree of Gemini.

In 77% of years the Sun had already reached Gemini by midday on May 21 in Greenwich. Your exact birth year, time and place decide which side you were born on.

Find your exact Sun degree

Add your birth year, and your time and place if you know them. Hali will work out exactly where the Sun stood when you arrived, and when it next returns there.

Birth time

Your birthday star

Alcyone

Each year the Sun meets Alcyone on your birthday. The brightest of the Pleiades, the Seven Sisters, watched by almost every culture on Earth. A star of vision, and of seeing what others miss.

Alcyone sits at 0° Gemini.

The stars truly behind your Sun

On May 21 the Sun stands in front of the stars of Taurus, the bull, even though the sign is Gemini. Astrologers' signs follow the seasons, and over two thousand years the seasons have slipped about a whole sign against the stars.

See the real sky behind your whole chart

May 21 in every year from 1940 to 2025

The Moon, Mercury and Venus keep moving too. Open your decade to see where they were on your birthday. Times are Greenwich time (UTC), so if the Moon changed sign that day, your birth time and place decide which side of the line you were born on.

The 1940s
YearMoonMercuryVenus
1940Scorpio, then Sagittarius from 13:00TaurusCancer
1941AriesGeminiGemini
1942LeoGeminiAries
1943SagittariusGemini, retrogradeCancer
1944TaurusTaurusTaurus
1945Virgo, then Libra from 14:43TaurusAries
1946Capricorn, then Aquarius from 14:32TaurusGemini
1947GeminiGeminiTaurus
1948ScorpioGeminiCancer
1949PiscesGeminiGemini
The 1950s
YearMoonMercuryVenus
1950CancerTaurus, retrogradeAries
1951Scorpio, then Sagittarius from 06:44TaurusCancer
1952Aries, then Taurus from 07:30TaurusTaurus
1953VirgoTaurusAries
1954CapricornGeminiGemini
1955Taurus, then Gemini from 20:57GeminiTaurus
1956Libra, then Scorpio from 23:27Gemini, retrogradeCancer
1957Aquarius, then Pisces from 16:21TaurusGemini
1958Gemini, then Cancer from 09:23TaurusAries
1959ScorpioTaurusCancer
The 1960s
YearMoonMercuryVenus
1960AriesGeminiTaurus
1961LeoGeminiAries
1962SagittariusGeminiGemini
1963Aries, then Taurus from 02:22Taurus, retrogradeTaurus
1964Virgo, then Libra from 00:42TaurusCancer
1965AquariusTaurusGemini
1966GeminiTaurusAries
1967Libra, then Scorpio from 16:30GeminiCancer
1968Pisces, then Aries from 18:15GeminiTaurus
1969Cancer, then Leo from 18:13Gemini, retrogradeAries
The 1970s
YearMoonMercuryVenus
1970Scorpio, then Sagittarius from 04:11Taurus, retrogradeGemini
1971AriesTaurusTaurus
1972VirgoTaurusCancer
1973CapricornGeminiGemini
1974Taurus, then Gemini from 19:54GeminiAries
1975LibraGeminiCancer
1976PiscesTaurus, retrogradeTaurus
1977CancerTaurusAries
1978ScorpioTaurusGemini
1979Pisces, then Aries from 07:31TaurusTaurus
The 1980s
YearMoonMercuryVenus
1980Leo, then Virgo from 17:33GeminiCancer
1981Sagittarius, then Capricorn from 16:20GeminiGemini
1982Aries, then Taurus from 01:22Gemini, retrogradeAries
1983Virgo, then Libra from 21:12Taurus, retrogradeCancer
1984AquariusTaurusTaurus
1985GeminiTaurusAries
1986Libra, then Scorpio from 17:03TaurusGemini
1987PiscesGeminiTaurus
1988LeoGeminiCancer
1989SagittariusGemini, retrogradeGemini
The 1990s
YearMoonMercuryVenus
1990AriesTaurusAries
1991VirgoTaurusCancer
1992Capricorn, then Aquarius from 19:44TaurusTaurus
1993Taurus, then Gemini from 13:08GeminiAries
1994LibraGeminiCancer
1995Aquarius, then Pisces from 11:40GeminiTaurus
1996CancerTaurus, retrogradeGemini
1997ScorpioTaurusGemini
1998Pisces, then Aries from 11:06TaurusAries
1999LeoTaurusCancer
The 2000s
YearMoonMercuryVenus
2000Sagittarius, then Capricorn from 00:02GeminiTaurus
2001TaurusGeminiAries
2002VirgoGemini, retrogradeCancer
2003AquariusTaurusTaurus
2004Gemini, then Cancer from 20:35TaurusGemini
2005Libra, then Scorpio from 11:49TaurusGemini
2006PiscesGeminiAries
2007Cancer, then Leo from 07:57GeminiCancer
2008SagittariusGeminiTaurus
2009AriesTaurus, retrogradeAries
The 2010s
YearMoonMercuryVenus
2010VirgoTaurusCancer
2011CapricornTaurusTaurus
2012GeminiTaurusGemini
2013LibraGeminiGemini
2014Aquarius, then Pisces from 12:19GeminiAries
2015CancerGemini, retrogradeCancer
2016Scorpio, then Sagittarius from 18:49Taurus, retrogradeTaurus
2017Pisces, then Aries from 10:11TaurusAries
2018LeoTaurusCancer
2019Sagittarius, then Capricorn from 07:57GeminiTaurus
The 2020s
YearMoonMercuryVenus
2020TaurusGeminiGemini
2021VirgoGeminiGemini
2022AquariusGemini, retrogradeAries
2023GeminiTaurusCancer
2024ScorpioTaurusTaurus
2025PiscesTaurusAries

Moon at midnight and the minute it changed sign, Mercury and Venus at noon, all Greenwich time. Your exact placements need your birth time and place. Find your exact Moon sign

Eclipses on May 21

Between 1930 and 2050, these eclipses fell on May 21, Greenwich time.

  • 1993, partial solar eclipse at 14:19
  • 2031, annular solar eclipse at 07:14

How common is a May 21 birthday?

In US birth records from 1994 to 2014, an average of 11,254 babies were born on May 21 each year. That makes it number 135 of 366 birthdays, where 1 is the most common. That is 1% more than an average day.

See every birthday and sign ranked

More from our studies: The rarest rising sign, city by city · How rare is your Big Three? · Were you born with Mercury retrograde?

The Gemini in you

Your gift

Curiosity that turns strangers into friends and quiet rooms into conversations.

Your growing edge

Depth. With so many doors open, it can be hard to walk all the way through one.

Your decan, the first part of Gemini

Ruled by Mercury

The first ten degrees belong to Mercury, the sign's own ruler, so the chatter comes doubled. Quick, witty and endlessly interested, you think out loud and learn by talking.

Read about the first decan of Gemini

Born before the Sun reached Gemini? Your story still belongs to Taurus. Read your Taurus birthday

When the Sun changed sign, year by year

Every year the Sun crossed from Taurus into Gemini around May 21. Times are Greenwich time (UTC), so add or subtract your birthplace's offset. Find your year to see which side you were born on.

1930May 21, 19:42
1931May 22, 01:15
1932May 21, 07:06
1933May 21, 12:56
1934May 21, 18:34
1935May 22, 00:24
1936May 21, 06:06
1937May 21, 11:56
1938May 21, 17:50
1939May 21, 23:26
1940May 21, 05:22
1941May 21, 11:23
1942May 21, 17:08
1943May 21, 23:02
1944May 21, 04:50
1945May 21, 10:40
1946May 21, 16:34
1947May 21, 22:09
1948May 21, 03:57
1949May 21, 09:50
1950May 21, 15:27
1951May 21, 21:15
1952May 21, 03:03
1953May 21, 08:52
1954May 21, 14:47
1955May 21, 20:24
1956May 21, 02:12
1957May 21, 08:10
1958May 21, 13:51
1959May 21, 19:41
1960May 21, 01:33
1961May 21, 07:22
1962May 21, 13:16
1963May 21, 18:57
1964May 21, 00:49
1965May 21, 06:50
1966May 21, 12:31
1967May 21, 18:18
1968May 21, 00:05
1969May 21, 05:49
1970May 21, 11:37
1971May 21, 17:14
1972May 20, 22:59
1973May 21, 04:53
1974May 21, 10:35
1975May 21, 16:23
1976May 20, 22:20
1977May 21, 04:14
1978May 21, 10:08
1979May 21, 15:53
1980May 20, 21:41
1981May 21, 03:39
1982May 21, 09:22
1983May 21, 15:06
1984May 20, 20:57
1985May 21, 02:42
1986May 21, 08:27
1987May 21, 14:09
1988May 20, 19:56
1989May 21, 01:53
1990May 21, 07:37
1991May 21, 13:20
1992May 20, 19:12
1993May 21, 01:01
1994May 21, 06:49
1995May 21, 12:33
1996May 20, 18:23
1997May 21, 00:18
1998May 21, 06:05
1999May 21, 11:52
2000May 20, 17:49
2001May 20, 23:44
2002May 21, 05:29
2003May 21, 11:12
2004May 20, 16:59
2005May 20, 22:47
2006May 21, 04:31
2007May 21, 10:11
2008May 20, 16:00
2009May 20, 21:51
2010May 21, 03:34
2011May 21, 09:20
2012May 20, 15:15
2013May 20, 21:09
2014May 21, 02:59
2015May 21, 08:44
2016May 20, 14:36
2017May 20, 20:30
2018May 21, 02:14
2019May 21, 07:58
2020May 20, 13:49
2021May 20, 19:36
2022May 21, 01:22
2023May 21, 07:08
2024May 20, 12:59
2025May 20, 18:54
2026May 21, 00:37
2027May 21, 06:17
2028May 20, 12:09
2029May 20, 17:55
2030May 20, 23:40
2031May 21, 05:27
2032May 20, 11:14
2033May 20, 17:10
2034May 20, 22:57
2035May 21, 04:43
2036May 20, 10:44
2037May 20, 16:35
2038May 20, 22:22
2039May 21, 04:10
2041May 20, 15:49
2042May 20, 21:31
2043May 21, 03:08
2045May 20, 14:45
2046May 20, 20:28
2047May 21, 02:19
2049May 20, 14:03
2050May 20, 19:50

Questions about May 21

What zodiac sign is May 21?

If you were born on May 21, your Sun sign is Taurus or Gemini. This is a cusp day, when the Sun crosses from one sign into the next at a different hour each year.

Is May 21 a cusp birthday?

Yes. The Sun moves from Taurus into Gemini around this day, at a different hour each year, so people born on May 21 can be either sign. Check your birth year above to see which you are.

What is the birthday star for May 21?

Each year the Sun meets Alcyone on your birthday. The brightest of the Pleiades, the Seven Sisters, watched by almost every culture on Earth. A star of vision, and of seeing what others miss.

What was the Moon sign on May 21?

It depends on the year, because the Moon changes sign about every two and a half days. On May 21 2025 the Moon was in Pisces, and on May 21 2024 it was in Scorpio. Find your year in the table above, and add your birth time for the exact sign.

What constellation is the Sun in on May 21?

On May 21 the Sun stands in front of the stars of Taurus, the bull, even though the sign is Gemini. Astrologers' signs follow the seasons, and over two thousand years the seasons have slipped about a whole sign against the stars.

Everything about GeminiExact Gemini dates every yearAll birthdays

Your Sun sign is one star in a whole sky. Your Moon and rising sign tell the rest of your story.

See my birth chart