Birthday signs · Gemini season
What zodiac sign is May 21?
The noon UTC Sun places May 21 in Gemini during 73 of the 101 years from 1930 to 2030, and in Taurus during 28. The noon Sun was found to range from 29.47° Taurus to 0.96° Gemini on May 21. Which sign applies to May 21 rests on the birth year and time.
Calculated across 1930–2030 · checked .
May 21: Gemini or Taurus
| Gemini at noon UTC | 73 of 101 years |
|---|---|
| Taurus at noon UTC | 28 of 101 years |
| Taurus years include | 1930, 1931 and 1933 |
| Settled by | birth year and time |
May 21 at a glance
| Sign | ♊︎ Gemini (73 years) or ♉︎ Taurus (28) |
|---|---|
| Element and mode | air, mutable |
| Polarity | positive (masculine) |
| Ruler | Mercury (traditional) |
| Sun on this date | 29.5° Taurus to 1° Gemini at noon UTC, 1930–2030 |
| Day of the season | Gemini day 1; Taurus day 31 |
| Decan | first (0°–10°), face of Jupiter |
| Sidereal sign (Lahiri) | Taurus |
| Day number | 3 (modern numerology) |
Rulers: Ptolemy; modern list.6
The decan: early Gemini
| Noon Sun | 29.47° Taurus to 0.96° Gemini |
|---|---|
| Decan | first (0°–10°) |
| Face ruler, Chaldean order | Jupiter |
| Taurus years | 29.47°–29.98° Taurus |
Faces after Lilly, in Chaldean order.3
May 21 by the numbers
| Day number | 3 (2 + 1 = 3) |
|---|---|
| Month-day number | 8 (5 + 3) |
| System | modern numerology, digit sums |
Digit sums as numerology guides give them.4
Where the date falls in the season
| Day of Gemini season | 1 (in its Gemini years) |
|---|---|
| Day of Taurus season | 31 (in its Taurus years) |
| Gemini season opened | May 21 (73 years) |
| Gemini season closed | June 20 (39 years) or June 21 (34) |
| Element and mode | air, mutable |
| Traditional ruler | Mercury |
Seasons by the noon-UTC rule; rulers after Ptolemy.2
Born at this point in Gemini season
Someone born in the first days of Gemini brings a quick, curious mind to most conversations. They like to think out loud, testing a plan with friends before committing to it, and they enjoy the moment when a new question changes what they believed an hour earlier. People close to them sometimes wish for a faster answer. Their real skill is noticing what others overlook, and their steady work is learning when a question has done its job and a decision is due.
Interpretation, not prediction.
The sidereal sign
| Sidereal sign, Lahiri ayanamsa | Taurus, all 101 years |
|---|---|
| Noon Sun, sidereal Taurus | 6°–7.3° |
| Convention | Indian (Vedic) astrology |
Ayanamsa convention.5
Born on May 21
- Albrecht Dürer (1471–1528), German painter, printmaker, mathematician, and theorist
- Philip II of Spain (1527–1598), King of Spain, Portugal, Naples and Sicily; King consort of England, lived 1527-1598
- Henri Rousseau (1844–1910), French painter
- Willem Einthoven (1860–1927), Dutch physiologist
- Andrei Sakharov (1921–1989), Soviet nuclear physicist and human rights activist
- Mary Robinson (1944), former President of Ireland and former United Nations High Commissioner for Human Rights
- The Notorious B.I.G. (1972–1997), American rapper
- Mario Mandžukić (1986), Croatian association football player
Birth dates checked on Wikidata.7
May 21 in history
Observed on this date:
- Afro-Colombian Day (Colombia)
- Circassian Day of Mourning (Circassians)
- Day of Patriots and Military (Hungary)
- Independence Day, celebrates the Montenegrin independence referendum in 2006, celebrated until the next day. (Montenegro)
- International Tea Day (International)
- Navy Day (Chile)
- Saint Helena Day, celebrates the discovery of Saint Helena in 1502. (Saint Helena, Ascension and Tristan da Cunha)
- World Day for Cultural Diversity for Dialogue and Development (International)
Events on May 21:
- 1349: Dušan's Code, the constitution of the Serbian Empire, is enacted by Dušan the Mighty.
- 1927: Charles Lindbergh touches down at Le Bourget Field in Paris, completing the world's first solo nonstop flight across the Atlantic Ocean.
- 1981: Transamerica Corporation agrees to sell United Artists to Metro-Goldwyn-Mayer for $380 million after the box office failure of the 1980 film Heaven's Gate.
- 2010: JAXA, the Japan Aerospace Exploration Agency, launches the solar-sail spacecraft IKAROS aboard an H-IIA rocket. The vessel would make a Venus flyby late in the year.
How the answer was worked out
Each year's sign was read from the Sun's tropical longitude on May 21, calculated at noon UTC for each year from 1930 through 2030 by Astronomy Engine.1 How the Machine works
Questions people also ask
What zodiac sign is May 21?
May 21 at noon UTC carries the sign Gemini in most sampled years, specifically 73 of 101, and the sign Taurus in the other 28.
Is May 21 on a zodiac cusp?
Yes. The Sun in some years moved from Taurus into Gemini during May 21, which is why the noon UTC sample divides into Gemini in 73 years and Taurus in 28, the birth year and time settling the sign that applies.
What decan is May 21?
May 21 remains in the first decan of Gemini (0°–10°) throughout every sampled year, so the face ruler under the Chaldean order is Jupiter.
What is the birthday number for May 21?
In modern numerology, the figures for May 21 are a day number of 3 and a month-day number of 8, found by adding digits.
Sources
- Astronomy Engine JavaScript reference — Don Cross, Astronomy Engine. Verified .
- Ptolemy, Tetrabiblos, Book I — LacusCurtius, University of Chicago. Verified .
- Decan (astrology): the faces of the planets (after Lilly) — Wikipedia. Verified .
- Life Path Number — Numerology.com (practitioner site). Verified .
- Ayanamsa (Lahiri and other sidereal conventions) — Wikipedia. Verified .
- Gemini (astrology) — Wikipedia. Verified .
- Wikipedia: May 21 — Wikipedia (Wikimedia On this day feed); birth dates checked on Wikidata. Verified .