2014 · sign changed at 02:53 UTC on this day
Born before 02:53 → Taurus. Born after → Gemini. This is the one case where your birth hour decides your sign.
Boundary date · 33 switches since 1930
21 May — Gemini or Taurus?
This date sits on a sign boundary, so the honest answer needs your birth year. Across 1930–2029 it came out Gemini in 71% of years and Taurus in 29%.
Which sign, by birth year
2015 · sign changed at 08:42 UTC on this day
Born before 08:42 → Taurus. Born after → Gemini. This is the one case where your birth hour decides your sign.
2016
Gemini all day — the crossing fell on a different date that year.
2017
Gemini all day — the crossing fell on a different date that year.
2018 · sign changed at 02:06 UTC on this day
Born before 02:06 → Taurus. Born after → Gemini. This is the one case where your birth hour decides your sign.
2019 · sign changed at 07:54 UTC on this day
Born before 07:54 → Taurus. Born after → Gemini. This is the one case where your birth hour decides your sign.
2020
Gemini all day — the crossing fell on a different date that year.
2021
Gemini all day — the crossing fell on a different date that year.
2022 · sign changed at 01:19 UTC on this day
Born before 01:19 → Taurus. Born after → Gemini. This is the one case where your birth hour decides your sign.
2023 · sign changed at 07:07 UTC on this day
Born before 07:07 → Taurus. Born after → Gemini. This is the one case where your birth hour decides your sign.
2024
Gemini all day — the crossing fell on a different date that year.
2025
Gemini all day — the crossing fell on a different date that year.
2026 · sign changed at 00:31 UTC on this day
Born before 00:31 → Taurus. Born after → Gemini. This is the one case where your birth hour decides your sign.
2027 · sign changed at 06:19 UTC on this day
Born before 06:19 → Taurus. Born after → Gemini. This is the one case where your birth hour decides your sign.
2028
Gemini all day — the crossing fell on a different date that year.
2029
Gemini all day — the crossing fell on a different date that year.
2030
Gemini all day — the crossing fell on a different date that year.
2031 · sign changed at 05:32 UTC on this day
Born before 05:32 → Taurus. Born after → Gemini. This is the one case where your birth hour decides your sign.
2032
Gemini all day — the crossing fell on a different date that year.
2033
Gemini all day — the crossing fell on a different date that year.
2034
Gemini all day — the crossing fell on a different date that year.
This is why two sites give you two different signs for 21 May. Neither is lying — they are both publishing a fixed range, and a fixed range cannot be right for every year. The 33 switch years since 1930 are the proof.
Jupiter-ruled decan of Gemini
Decan
1 of 3 · 0°–10°
Sub-ruler
Jupiter
Sign ruler
Mercury
Sun on this date
0.46°
Jupiter widens the sign — more appetite, more optimism, and less patience with detail. Sitting in the first ten degrees, the sign shows in its rawest form — least mixed with the sign before it, and least worn down.
Look up your birth year
Every year, computed
All 100 years for 21 May. Each row is calculated for that exact day — sun position, life path, the Moon's sign and nakshatra, and which planets were retrograde. Find your year.
| Year | Sun | Life path | Moon | Nakshatra | Retrograde |
|---|---|---|---|---|---|
| 1930 | Taurus 29.7° | 3 | Pisces | Shatabhisha 3 | Mercury Saturn |
| 1931 | Taurus 29.47° | 4 | Cancer | Punarvasu 2 | Saturn |
| 1932 | Gemini 0.19° | 5 | Sagittarius | Jyeshtha 3 | Saturn |
| 1933 | Taurus 29.96° | 6 | Aries | Ashwini 2 | — |
| 1934 | Taurus 29.73° | 7 | Leo | Magha 2 | Jupiter |
| 1935 | Taurus 29.5° | 8 | Capricorn | Purva Ashadha 1 | Jupiter |
| 1936 | Gemini 0.23° | 9 | Gemini | Rohini 2 | Mercury Jupiter |
| 1937 | Taurus 29.99° | 1 | Libra | Chitra 1 | Mercury Mars Jupiter |
| 1938 | Taurus 29.76° | 11 | Aquarius | Dhanishta 1 | — |
| 1939 | Taurus 29.53° | 3 | Gemini | Ardra 1 | — |
| 1940 | Gemini 0.26° | 4 | Scorpio | Anuradha 1 | — |
| 1941 | Gemini 0.03° | 5 | Aries | Uttara Bhadrapada 4 | — |
| 1942 | Taurus 29.79° | 6 | Leo | Pushya 4 | — |
| 1943 | Taurus 29.56° | 7 | Sagittarius | Jyeshtha 4 | Mercury |
| 1944 | Gemini 0.29° | 8 | Taurus | Krittika 1 | — |
| 1945 | Gemini 0.06° | 9 | Virgo | Uttara Phalguni 3 | — |
| 1946 | Taurus 29.82° | 1 | Capricorn | Uttara Ashadha 3 | Jupiter |
| 1947 | Taurus 29.59° | 11 | Gemini | Rohini 3 | Jupiter |
| 1948 | Gemini 0.32° | 3 | Scorpio | Swati 4 | Jupiter |
| 1949 | Gemini 0.09° | 4 | Pisces | Purva Bhadrapada 2 | Jupiter |
| 1950 | Taurus 29.86° | 5 | Cancer | Punarvasu 2 | Mercury |
| 1951 | Taurus 29.62° | 6 | Sagittarius | Anuradha 3 | Saturn |
| 1952 | Gemini 0.35° | 7 | Taurus | Ashwini 3 | Mars Saturn |
| 1953 | Gemini 0.12° | 8 | Virgo | Purva Phalguni 1 | Saturn |
| 1954 | Taurus 29.89° | 9 | Capricorn | Purva Ashadha 2 | Saturn |
| 1955 | Taurus 29.66° | 1 | Taurus | Krittika 2 | Saturn |
| 1956 | Gemini 0.39° | 11 | Libra | Chitra 3 | Mercury Saturn |
| 1957 | Gemini 0.15° | 3 | Aquarius | Dhanishta 4 | Saturn |
| 1958 | Taurus 29.92° | 4 | Cancer | Ardra 1 | Jupiter Saturn |
| 1959 | Taurus 29.69° | 5 | Scorpio | Vishakha 1 | Jupiter Saturn |
| 1960 | Gemini 0.42° | 6 | Aries | Revati 2 | Jupiter Saturn |
| 1961 | Gemini 0.18° | 7 | Leo | Ashlesha 3 | Saturn |
| 1962 | Taurus 29.95° | 8 | Sagittarius | Jyeshtha 4 | — |
| 1963 | Taurus 29.72° | 9 | Taurus | Ashwini 4 | Mercury |
| 1964 | Gemini 0.45° | 1 | Libra | Hasta 1 | — |
| 1965 | Gemini 0.22° | 11 | Aquarius | Shravana 2 | — |
| 1966 | Taurus 29.98° | 3 | Gemini | Rohini 4 | — |
| 1967 | Taurus 29.75° | 4 | Libra | Chitra 4 | Mars |
| 1968 | Gemini 0.48° | 5 | Pisces | Uttara Bhadrapada 1 | — |
| 1969 | Gemini 0.25° | 6 | Cancer | Pushya 1 | Mercury Mars Jupiter |
| 1970 | Gemini 0.02° | 7 | Sagittarius | Anuradha 3 | Mercury Jupiter |
| 1971 | Taurus 29.78° | 8 | Aries | Revati 3 | Jupiter |
| 1972 | Gemini 0.51° | 9 | Virgo | Purva Phalguni 4 | Jupiter |
| 1973 | Gemini 0.28° | 1 | Capricorn | Purva Ashadha 4 | — |
| 1974 | Gemini 0.05° | 11 | Taurus | Krittika 2 | — |
| 1975 | Taurus 29.81° | 3 | Libra | Hasta 3 | — |
| 1976 | Gemini 0.54° | 4 | Pisces | Shatabhisha 3 | Mercury |
| 1977 | Gemini 0.31° | 5 | Cancer | Ardra 3 | — |
| 1978 | Gemini 0.08° | 6 | Scorpio | Vishakha 1 | — |
| 1979 | Taurus 29.85° | 7 | Aries | Uttara Bhadrapada 2 | — |
| 1980 | Gemini 0.58° | 8 | Leo | Magha 2 | Saturn |
| 1981 | Gemini 0.34° | 9 | Sagittarius | Mula 2 | Jupiter Saturn |
| 1982 | Gemini 0.11° | 1 | Taurus | Ashwini 4 | Mercury Jupiter Saturn |
| 1983 | Taurus 29.88° | 11 | Virgo | Uttara Phalguni 2 | Mercury Jupiter Saturn |
| 1984 | Gemini 0.61° | 3 | Aquarius | Shravana 4 | Mars Jupiter Saturn |
| 1985 | Gemini 0.37° | 4 | Gemini | Mrigashira 1 | Saturn |
| 1986 | Gemini 0.14° | 5 | Libra | Chitra 4 | Saturn |
| 1987 | Taurus 29.91° | 6 | Pisces | Purva Bhadrapada 1 | Saturn |
| 1988 | Gemini 0.64° | 7 | Leo | Pushya 3 | Saturn |
| 1989 | Gemini 0.41° | 8 | Sagittarius | Anuradha 4 | Mercury Saturn |
| 1990 | Gemini 0.17° | 9 | Aries | Revati 3 | Saturn |
| 1991 | Taurus 29.94° | 1 | Virgo | Purva Phalguni 1 | Saturn |
| 1992 | Gemini 0.67° | 11 | Capricorn | Uttara Ashadha 2 | — |
| 1993 | Gemini 0.44° | 3 | Taurus | Krittika 3 | Jupiter |
| 1994 | Gemini 0.21° | 4 | Libra | Hasta 2 | Jupiter |
| 1995 | Taurus 29.97° | 5 | Pisces | Dhanishta 4 | Jupiter |
| 1996 | Gemini 0.7° | 6 | Cancer | Punarvasu 1 | Mercury Venus Jupiter |
| 1997 | Gemini 0.47° | 7 | Scorpio | Vishakha 2 | — |
| 1998 | Gemini 0.24° | 8 | Aries | Uttara Bhadrapada 2 | — |
| 1999 | Gemini 0.01° | 9 | Leo | Ashlesha 4 | Mars |
| 2000 | Gemini 0.73° | 1 | Capricorn | Mula 4 | — |
| 2001 | Gemini 0.5° | 11 | Taurus | Bharani 1 | Mars |
| 2002 | Gemini 0.27° | 3 | Virgo | Uttara Phalguni 1 | Mercury |
| 2003 | Gemini 0.04° | 4 | Aquarius | Shravana 3 | — |
| 2004 | Gemini 0.77° | 5 | Gemini | Mrigashira 3 | Venus |
| 2005 | Gemini 0.53° | 6 | Scorpio | Chitra 4 | Jupiter |
| 2006 | Gemini 0.3° | 7 | Pisces | Purva Bhadrapada 1 | Jupiter |
| 2007 | Gemini 0.07° | 8 | Leo | Pushya 2 | Jupiter |
| 2008 | Gemini 0.8° | 9 | Sagittarius | Jyeshtha 2 | Jupiter |
| 2009 | Gemini 0.57° | 1 | Aries | Revati 3 | Mercury |
| 2010 | Gemini 0.33° | 11 | Virgo | Magha 4 | Saturn |
| 2011 | Gemini 0.1° | 3 | Capricorn | Uttara Ashadha 1 | Saturn |
| 2012 | Gemini 0.83° | 4 | Gemini | Rohini 1 | Venus Saturn |
| 2013 | Gemini 0.6° | 5 | Libra | Hasta 2 | Saturn |
| 2014 | Gemini 0.36° | 6 | Aquarius | Dhanishta 4 | Saturn |
| 2015 | Gemini 0.13° | 7 | Cancer | Ardra 4 | Mercury Saturn |
| 2016 | Gemini 0.86° | 8 | Scorpio | Vishakha 4 | Mercury Mars Saturn |
| 2017 | Gemini 0.63° | 9 | Aries | Uttara Bhadrapada 2 | Jupiter Saturn |
| 2018 | Gemini 0.4° | 1 | Leo | Ashlesha 4 | Jupiter Saturn |
| 2019 | Gemini 0.16° | 11 | Capricorn | Mula 3 | Jupiter Saturn |
| 2020 | Gemini 0.89° | 3 | Taurus | Bharani 3 | Venus Jupiter Saturn |
| 2021 | Gemini 0.66° | 4 | Virgo | Uttara Phalguni 1 | — |
| 2022 | Gemini 0.43° | 5 | Aquarius | Shravana 3 | Mercury |
| 2023 | Gemini 0.2° | 6 | Gemini | Mrigashira 2 | — |
| 2024 | Gemini 0.93° | 7 | Scorpio | Swati 2 | — |
| 2025 | Gemini 0.69° | 8 | Pisces | Shatabhisha 4 | — |
| 2026 | Gemini 0.46° | 9 | Leo | Pushya 3 | — |
| 2027 | Gemini 0.23° | 1 | Sagittarius | Jyeshtha 1 | — |
| 2028 | Gemini 0.96° | 11 | Aries | Ashwini 1 | Mercury Venus |
| 2029 | Gemini 0.72° | 3 | Virgo | Magha 4 | Mercury Jupiter |
The Moon and nakshatra columns change every year because the Moon returns to the same calendar date in a different position — which is why a birth date alone cannot tell you those, and why this table exists.
A century of 21 May
Day of the year
142 of 366
Mercury was retrograde on this date in
21 of 100 years
(21%)
Most recent of those
2009, 2015, 2016, 2022, 2028, 2029
Full moon fell on this date in
7 years — 1970, 1978, 1997, 2016, 2027
Most frequent moon phase
Waxing Crescent · 20 years
Every figure here is specific to 21 May: the Moon returns to a given phase on the same calendar date only every 19 years or so, so the counts differ from one date to the next. Mercury’s retrograde periods drift by about 30° of the zodiac each year, which is why the share is near 20% but never identical. How that 20% is computed →
Year by year
2006
Gemini
life path 7
2007
Gemini
life path 8
2008
Gemini
life path 9
2009
Gemini
life path 1
2010
Gemini
life path 11
2011
Gemini
life path 3
2012
Gemini
life path 4
2013
Gemini
life path 5
2014
Gemini
life path 6
2015
Gemini
life path 7
2016
Gemini
life path 8
2017
Gemini
life path 9
2018
Gemini
life path 1
2019
Gemini
life path 11
2020
Gemini
life path 3
2021
Gemini
life path 4
2022
Gemini
life path 5
2023
Gemini
life path 6
2024
Gemini
life path 7
2025
Gemini
life path 8
2026
Gemini
life path 9
2027
Gemini
life path 1
2028
Gemini
life path 11
2029
Gemini
life path 3
Notice the sign column changing — that is the boundary at work.
Life path numbers this date produces
3
12 years · 12%
4
11 years · 11%
5
11 years · 11%
6
11 years · 11%
7
11 years · 11%
8
11 years · 11%
9
11 years · 11%
1
11 years · 11%
11
11 years · 11%
The most frequent is 3 with 12 years; the scarcest is 11 with just 11. And this date can carry a master number: 11 in 11 of those years. Master numbers are never reduced further, which is exactly why they are scarcer than single digits on any fixed day and month. Why 11, 22 and 33 are treated differently →
Why the answer moves
There is no third sign and no blend — at your moment of birth the Sun was one side of the boundary or the other. For 21 May that came out Gemini in 71% of years and Taurus in 29%, switching 33 times since 1930. Most recently in 1992, 1995, 1996.