♉︎ Taurus / ♊︎ Gemini · Cusp birthday
May 21 zodiac sign
Most May 21 birthdays belong to Gemini, and while Taurus held the start of the day in plenty of years, that stretch has shrunk to the small hours lately.
Check your birth year and time →Who is which sign, born May 21
Eastern time
Pacific time
Share of all births on May 21, 1940 to 2030, with birth times spread evenly through the day.
A dating app asks for your sign in a dropdown, and May 21 leaves your thumb hovering between Taurus and Gemini. Most sign lists put the start of Gemini on May 21, and that is a good default. Across the decades, the large majority of May 21 births have a Gemini Sun. The doubt comes from the early hours. In many years the Sun made the move during this date, so anyone born before that moment was a Taurus, and in the mid-1900s that could mean a birth well into the afternoon. Born recently, you can almost always pick Gemini and move on.
Born on May 21? Check your sign
When the Sun enters Gemini, year by year
The exact moment for every year from 1940 to 2035, and what that made May 21. Switch the time zone to match where you were born.
The rest are Taurus. Leap years move the change back and forth inside a four-year cycle, and the cycle itself drifts slowly earlier on the calendar.
| Year | Sun enters Gemini | May 21 was |
|---|---|---|
| 2035 | 12:43 AM EDT | Taurus until 12:43 AM, then Gemini |
| 2034 | May 20, 6:57 PM EDT | Gemini all day |
| 2033 | May 20, 1:10 PM EDT | Gemini all day |
| 2032 | May 20, 7:14 AM EDT | Gemini all day |
| 2031 | 1:27 AM EDT | Taurus until 1:27 AM, then Gemini |
| 2030 | May 20, 7:40 PM EDT | Gemini all day |
| 2029 | May 20, 1:55 PM EDT | Gemini all day |
| 2028 | May 20, 8:09 AM EDT | Gemini all day |
| 2027 | 2:17 AM EDT | Taurus until 2:17 AM, then Gemini |
| 2026 | May 20, 8:37 PM EDT | Gemini all day |
| 2025 | May 20, 2:54 PM EDT | Gemini all day |
| 2024 | May 20, 8:59 AM EDT | Gemini all day |
| 2023 | 3:08 AM EDT | Taurus until 3:08 AM, then Gemini |
| 2022 | May 20, 9:22 PM EDT | Gemini all day |
| 2021 | May 20, 3:36 PM EDT | Gemini all day |
| 2020 | May 20, 9:49 AM EDT | Gemini all day |
| 2019 | 3:58 AM EDT | Taurus until 3:58 AM, then Gemini |
| 2018 | May 20, 10:14 PM EDT | Gemini all day |
| 2017 | May 20, 4:30 PM EDT | Gemini all day |
| 2016 | May 20, 10:36 AM EDT | Gemini all day |
| 2015 | 4:44 AM EDT | Taurus until 4:44 AM, then Gemini |
| 2014 | May 20, 10:59 PM EDT | Gemini all day |
| 2013 | May 20, 5:09 PM EDT | Gemini all day |
| 2012 | May 20, 11:15 AM EDT | Gemini all day |
| 2011 | 5:20 AM EDT | Taurus until 5:20 AM, then Gemini |
| 2010 | May 20, 11:34 PM EDT | Gemini all day |
| 2009 | May 20, 5:51 PM EDT | Gemini all day |
| 2008 | May 20, 12:00 PM EDT | Gemini all day |
| 2007 | 6:11 AM EDT | Taurus until 6:11 AM, then Gemini |
| 2006 | 12:31 AM EDT | Taurus until 12:31 AM, then Gemini |
| 2005 | May 20, 6:47 PM EDT | Gemini all day |
| 2004 | May 20, 12:59 PM EDT | Gemini all day |
| 2003 | 7:12 AM EDT | Taurus until 7:12 AM, then Gemini |
| 2002 | 1:29 AM EDT | Taurus until 1:29 AM, then Gemini |
| 2001 | May 20, 7:44 PM EDT | Gemini all day |
| 2000 | May 20, 1:49 PM EDT | Gemini all day |
| 1999 | 7:52 AM EDT | Taurus until 7:52 AM, then Gemini |
| 1998 | 2:05 AM EDT | Taurus until 2:05 AM, then Gemini |
| 1997 | May 20, 8:18 PM EDT | Gemini all day |
| 1996 | May 20, 2:23 PM EDT | Gemini all day |
| 1995 | 8:33 AM EDT | Taurus until 8:33 AM, then Gemini |
| 1994 | 2:49 AM EDT | Taurus until 2:49 AM, then Gemini |
| 1993 | May 20, 9:01 PM EDT | Gemini all day |
| 1992 | May 20, 3:12 PM EDT | Gemini all day |
| 1991 | 9:20 AM EDT | Taurus until 9:20 AM, then Gemini |
| 1990 | 3:37 AM EDT | Taurus until 3:37 AM, then Gemini |
| 1989 | May 20, 9:53 PM EDT | Gemini all day |
| 1988 | May 20, 3:56 PM EDT | Gemini all day |
| 1987 | 10:09 AM EDT | Taurus until 10:09 AM, then Gemini |
| 1986 | 4:27 AM EDT | Taurus until 4:27 AM, then Gemini |
| 1985 | May 20, 10:42 PM EDT | Gemini all day |
| 1984 | May 20, 4:57 PM EDT | Gemini all day |
| 1983 | 11:06 AM EDT | Taurus until 11:06 AM, then Gemini |
| 1982 | 5:22 AM EDT | Taurus until 5:22 AM, then Gemini |
| 1981 | May 20, 11:39 PM EDT | Gemini all day |
| 1980 | May 20, 5:41 PM EDT | Gemini all day |
| 1979 | 11:53 AM EDT | Taurus until 11:53 AM, then Gemini |
| 1978 | 6:08 AM EDT | Taurus until 6:08 AM, then Gemini |
| 1977 | 12:14 AM EDT | Taurus until 12:14 AM, then Gemini |
| 1976 | May 20, 6:20 PM EDT | Gemini all day |
| 1975 | 12:23 PM EDT | Taurus until 12:23 PM, then Gemini |
| 1974 | 6:35 AM EDT | Taurus until 6:35 AM, then Gemini |
| 1973 | 12:53 AM EDT | Taurus until 12:53 AM, then Gemini |
| 1972 | May 20, 6:59 PM EDT | Gemini all day |
| 1971 | 1:14 PM EDT | Taurus until 1:14 PM, then Gemini |
| 1970 | 7:37 AM EDT | Taurus until 7:37 AM, then Gemini |
| 1969 | 1:49 AM GMT-4 | Taurus until 1:49 AM, then Gemini |
| 1968 | May 20, 8:05 PM GMT-4 | Gemini all day |
| 1967 | 2:18 PM GMT-4 | Taurus until 2:18 PM, then Gemini |
| 1966 | 8:31 AM GMT-4 | Taurus until 8:31 AM, then Gemini |
| 1965 | 2:50 AM GMT-4 | Taurus until 2:50 AM, then Gemini |
| 1964 | May 20, 8:49 PM GMT-4 | Gemini all day |
| 1963 | 2:57 PM GMT-4 | Taurus until 2:57 PM, then Gemini |
| 1962 | 9:16 AM GMT-4 | Taurus until 9:16 AM, then Gemini |
| 1961 | 3:22 AM GMT-4 | Taurus until 3:22 AM, then Gemini |
| 1960 | May 20, 9:33 PM GMT-4 | Gemini all day |
| 1959 | 3:41 PM GMT-4 | Taurus until 3:41 PM, then Gemini |
| 1958 | 9:51 AM GMT-4 | Taurus until 9:51 AM, then Gemini |
| 1957 | 4:10 AM GMT-4 | Taurus until 4:10 AM, then Gemini |
| 1956 | May 20, 10:12 PM GMT-4 | Gemini all day |
| 1955 | 4:24 PM GMT-4 | Taurus until 4:24 PM, then Gemini |
| 1954 | 10:47 AM GMT-4 | Taurus until 10:47 AM, then Gemini |
| 1953 | 4:52 AM GMT-4 | Taurus until 4:52 AM, then Gemini |
| 1952 | May 20, 11:03 PM GMT-4 | Gemini all day |
| 1951 | 5:15 PM GMT-4 | Taurus until 5:15 PM, then Gemini |
| 1950 | 11:27 AM GMT-4 | Taurus until 11:27 AM, then Gemini |
| 1949 | 5:50 AM GMT-4 | Taurus until 5:50 AM, then Gemini |
| 1948 | May 20, 11:57 PM GMT-4 | Gemini all day |
| 1947 | 6:09 PM GMT-4 | Taurus until 6:09 PM, then Gemini |
| 1946 | 12:34 PM GMT-4 | Taurus until 12:34 PM, then Gemini |
| 1945 | 6:40 AM GMT-4 | Taurus until 6:40 AM, then Gemini |
| 1944 | 12:50 AM GMT-4 | Taurus until 12:50 AM, then Gemini |
| 1943 | 7:02 PM GMT-4 | Taurus until 7:02 PM, then Gemini |
| 1942 | 1:08 PM GMT-4 | Taurus until 1:08 PM, then Gemini |
| 1941 | 7:23 AM GMT-4 | Taurus until 7:23 AM, then Gemini |
| 1940 | 1:22 AM GMT-4 | Taurus until 1:22 AM, then Gemini |
Times use each zone's own clock rules for that year, including daylight saving and wartime time; where no standard abbreviation existed yet, the offset from Greenwich is shown. Calculated with Astronomy Engine and checked against its own solstice and equinox search. Other almanacs can differ by a minute because of how the slowing of Earth's spin is estimated.
May 21 in the sky
May 21 brings in Gemini, the last sign of spring. Gemini is mutable, and the mutable signs close out each season, loosening things up for whatever comes next. Here that means the final month before the June solstice, when daylight in the Northern Hemisphere is close to its peak and calendars fill with graduations and long weekends. The element changes from earth to air, from what you can hold to what you can say, and the ruler changes from Venus to Mercury, the quick planet of words and errands. It is a busy, talkative stretch of the year, and Gemini fits it well.
Gemini from day one
Gemini begins its run on May 21, and the sign tends to arrive fully formed: a fast mind and a short attention span for anything repetitive. You probably keep more than one version of yourself ready for different rooms, one for work and one for your oldest friends, and none of them is fake. People like you at parties because you can talk to almost anyone about almost anything for ten minutes and leave them feeling clever.
Mercury rules Gemini, which makes your thinking quick and your interests wide. The friction is follow-through. You might sign up for a pottery class and a language app in the same week, then keep whichever has the better group chat. That restlessness is easier to live with when you give it somewhere to go. A rotating list of small projects, each with an end date, suits a Gemini better than one giant goal that has to hold your interest for a year.
May 21 Taurus births
For a May 21 Taurus, the clock has to read early. Taurus only keeps this date from midnight until the Sun crosses into Gemini, and only in years when that crossing lands on May 21. Births from the 1940s and 1950s got the most of it, since the switch often came in the late morning or later in Eastern time. Since 2000 the Taurus part of the day has rarely lasted past the early morning, and on Pacific clocks the day is usually Gemini from the first minute. A Taurus born in those early hours is in the last stretch of the sign, and tends to move through a loud room at an unhurried pace.
Taurus or Gemini: what changes
If you are torn, start with how you rest. A Taurus recharges by staying put, with the same couch and a favorite meal. A Gemini recharges through variety, a new podcast or a walk to a part of town you have not seen, and gets twitchy when every day looks alike. Underneath that sits the switch from earth to air, and from fixed to mutable. Taurus holds on and Gemini adapts. The rulers differ as well. Venus gives Taurus its taste for comfort and beauty, while Mercury gives Gemini its fast, wandering mind and its habit of thinking out loud.
Why a May 21 birthday can feel like both signs
Mercury is the planet to look at if you are a May 21 Gemini who feels a bit Taurus. It rules Gemini, so its sign colors a Gemini Sun more than usual, and on this date Mercury is split almost evenly between Taurus and Gemini. A Gemini with Mercury in Taurus tends to talk more slowly and hold opinions longer. None of this makes you a blend. Your Sun was in one sign at birth, most likely Gemini. Venus ranges from Aries to Cancer. For the Moon sign, which sets your emotional weather, and the rising sign, which is how strangers read you, you need a birth chart.
Mercury on May 21
Venus on May 21
Share of people born on May 21, 1940 to 2030, calculated for noon Eastern time. About 52% have Mercury in Taurus.
A May 21 birthday
Greta spends every May 21 on what she calls a city sampler: a different neighborhood each hour, with whoever can keep up. This year it starts with tacos and ends on a ferry, because a stranger at the dock recommended the view. She talks the whole way, switching from her sister's wedding plans to octopus intelligence without a pause. By evening she has two new phone numbers and a plan to learn Portuguese that may not survive to July. Her friends keep coming along because she makes every block feel like news.
Questions people ask
Is May 21 a Taurus or a Gemini?
Gemini for most people. Often the Sun has already entered Gemini by the time May 21 begins in US time. In other years it gets there during the day, lately in the early morning, and only a birth before that moment is Taurus. The Taurus share is bigger for births from the mid-1900s and smaller for West Coast births. Plug your hour into this page's checker if you know it.
What is the Taurus-Gemini cusp called?
In popular birthday books it is the Cusp of Energy, the label they give to late-May birthdays around the Taurus-Gemini change. Astronomically there is nothing between the two signs. The Sun crosses from one to the other at a single moment, and your Sun sign is whichever side you were born on. Any mix you notice is more likely to come from where Mercury or your Moon sits.
Was May 21 more Taurus in the past?
Yes. During the 1940s and 1950s, the change often came on May 21 in the late morning or later in Eastern time, so a good part of the day was Taurus. Since then the change has moved earlier through the leap-year cycle, and from 2000 on the Taurus part of May 21 has rarely gone past the early morning. Your birth year matters as much as your birth hour here.