May 21 Zodiac Sign: Gemini
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- Date
- May 21
- Sun sign
- Taurus to Gemini
- Usual range
- May 21 to June 20
- Place in sign
- early, decan 1
- Sub-ruler
- Mercury
- Element
- Air
- Modality
- Mutable
- Ruling planet
- Mercury
- Changeover
- Yes, on or near this date
- Constellation
- Taurus
May 21 is a changeover day. At noon UTC across the 41 years from 1992 to 2032, the Sun was in Gemini in 40 years and Taurus in 1 year.
The Sun moved from Taurus into Gemini on May 21 in 21 of those years. The latest time in this span is 21 May 2031 at 05:27 UTC. That minute is the same tropical crossing the zodiac calculator uses. A birth city changes which clock time it falls on.
Gemini dates are May 21 to June 20. It is an air sign, mutable, ruled by Mercury. Taurus is the sign just before it. Curious, talkative, always juggling ideas.
May 21 sits within two days of a sign change on May 20. If the birth was late on this date, check the year in the calculator rather than the printed range.
In 2024 at noon UTC, the Sun on May 21 is in the first decan of Gemini, the early 10 degrees of the sign. The triplicity sub-ruler of that slice is Mercury.
The constellation behind the Sun on May 21 is Taurus. That is the true place of the Sun in the stars, and it is a separate fact from the astrological sign.
Moon, Rising, Mercury, Venus, and Mars still need a birth time and place. This page only settles the Sun sign.
Noon UTC, year by year
| Year | Sun sign at noon UTC | Changeover |
|---|---|---|
| 1992 | Gemini | No changeover this year |
| 1993 | Gemini | 01:01 UTC |
| 1994 | Gemini | 06:49 UTC |
| 1995 | Taurus | 12:33 UTC |
| 1996 | Gemini | No changeover this year |
| 1997 | Gemini | 00:18 UTC |
| 1998 | Gemini | 06:05 UTC |
| 1999 | Gemini | 11:52 UTC |
| 2000 | Gemini | No changeover this year |
| 2001 | Gemini | No changeover this year |
| 2002 | Gemini | 05:29 UTC |
| 2003 | Gemini | 11:12 UTC |
| 2004 | Gemini | No changeover this year |
| 2005 | Gemini | No changeover this year |
| 2006 | Gemini | 04:31 UTC |
| 2007 | Gemini | 10:11 UTC |
| 2008 | Gemini | No changeover this year |
| 2009 | Gemini | No changeover this year |
| 2010 | Gemini | 03:34 UTC |
| 2011 | Gemini | 09:20 UTC |
| 2012 | Gemini | No changeover this year |
| 2013 | Gemini | No changeover this year |
| 2014 | Gemini | 02:59 UTC |
| 2015 | Gemini | 08:44 UTC |
| 2016 | Gemini | No changeover this year |
| 2017 | Gemini | No changeover this year |
| 2018 | Gemini | 02:14 UTC |
| 2019 | Gemini | 07:58 UTC |
| 2020 | Gemini | No changeover this year |
| 2021 | Gemini | No changeover this year |
| 2022 | Gemini | 01:22 UTC |
| 2023 | Gemini | 07:08 UTC |
| 2024 | Gemini | No changeover this year |
| 2025 | Gemini | No changeover this year |
| 2026 | Gemini | 00:37 UTC |
| 2027 | Gemini | 06:17 UTC |
| 2028 | Gemini | No changeover this year |
| 2029 | Gemini | No changeover this year |
| 2030 | Gemini | No changeover this year |
| 2031 | Gemini | 05:27 UTC |
| 2032 | Gemini | No changeover this year |
Sign pages: Gemini and Taurus. Check this birthday in the zodiac calculator.
Questions
What zodiac sign is May 21?
May 21 can be Gemini or Taurus. The Sun's tropical longitude at noon UTC is the same 30 degree sign the zodiac calculator reports for a 12:00 UTC birth. In some years from 1992 to 2032 the sign changes on this date, so the year and the clock decide. Confirm the minute in the calculator.
Is May 21 a cusp birthday?
Yes. A cusp here means the Sun crosses a sign boundary on or near May 21 in the years we checked. The crossing minute comes from the same engine as the calculator, not from a printed range. Your city and clock can place the birth in either sign. The year table lists noon UTC for each year.
What is the May 21 star sign?
People searching for the May 21 star sign usually mean the Sun sign. On this page that is Gemini, an air sign, mutable, ruled by Mercury, in the early decan with Mercury as the triplicity sub-ruler. Gemini dates are May 21 to June 20. The constellation behind the Sun is a separate fact.