2014 · sign changed at 22:59 UTC on this day
Born before 22:59 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
Boundary date · 10 switches since 1930
21 December — Sagittarius or Capricorn?
This date sits on a sign boundary, so the honest answer needs your birth year. Across 1930–2029 it came out Sagittarius in 95% of years and Capricorn in 5%.
Which sign, by birth year
2015
Sagittarius all day — the crossing fell on a different date that year.
2016 · sign changed at 10:38 UTC on this day
Born before 10:38 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2017 · sign changed at 16:28 UTC on this day
Born before 16:28 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2018 · sign changed at 22:17 UTC on this day
Born before 22:17 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2019
Sagittarius all day — the crossing fell on a different date that year.
2020 · sign changed at 09:56 UTC on this day
Born before 09:56 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2021 · sign changed at 15:46 UTC on this day
Born before 15:46 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2022 · sign changed at 21:36 UTC on this day
Born before 21:36 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2023
Sagittarius all day — the crossing fell on a different date that year.
2024 · sign changed at 09:15 UTC on this day
Born before 09:15 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2025 · sign changed at 15:04 UTC on this day
Born before 15:04 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2026 · sign changed at 20:53 UTC on this day
Born before 20:53 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2027
Sagittarius all day — the crossing fell on a different date that year.
2028 · sign changed at 08:32 UTC on this day
Born before 08:32 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2029 · sign changed at 14:23 UTC on this day
Born before 14:23 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2030 · sign changed at 20:12 UTC on this day
Born before 20:12 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2031
Sagittarius all day — the crossing fell on a different date that year.
2032 · sign changed at 07:51 UTC on this day
Born before 07:51 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2033 · sign changed at 13:40 UTC on this day
Born before 13:40 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
2034 · sign changed at 19:30 UTC on this day
Born before 19:30 → Sagittarius. Born after → Capricorn. This is the one case where your birth hour decides your sign.
This is why two sites give you two different signs for 21 December. Neither is lying — they are both publishing a fixed range, and a fixed range cannot be right for every year. The 10 switch years since 1930 are the proof.
Saturn-ruled decan of Sagittarius
Decan
3 of 3 · 20°–30°
Sub-ruler
Saturn
Sign ruler
Jupiter
Sun on this date
29.62°
Saturn narrows and hardens the sign; slower to commit, and more durable once it has. The last ten degrees carry the sign already turning toward the next one, which is why this third often reads as the most complicated.
Look up your birth year
Every year, computed
All 100 years for 21 December. 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 | Sagittarius 28.91° | 1 | Capricorn | Purva Ashadha 3 | Mars Jupiter |
| 1931 | Sagittarius 28.66° | 11 | Taurus | Bharani 4 | Mercury Jupiter |
| 1932 | Sagittarius 29.44° | 3 | Libra | Hasta 2 | — |
| 1933 | Sagittarius 29.19° | 4 | Aquarius | Shatabhisha 1 | — |
| 1934 | Sagittarius 28.94° | 5 | Cancer | Ardra 2 | — |
| 1935 | Sagittarius 28.69° | 6 | Scorpio | Swati 3 | — |
| 1936 | Sagittarius 29.47° | 7 | Pisces | Uttara Bhadrapada 2 | — |
| 1937 | Sagittarius 29.22° | 8 | Leo | Ashlesha 4 | Mercury |
| 1938 | Sagittarius 28.97° | 9 | Sagittarius | Mula 1 | Mercury |
| 1939 | Sagittarius 28.72° | 1 | Aries | Ashwini 2 | Saturn |
| 1940 | Sagittarius 29.5° | 11 | Virgo | Uttara Phalguni 1 | Jupiter Saturn |
| 1941 | Sagittarius 29.25° | 3 | Aquarius | Shravana 3 | Jupiter Saturn |
| 1942 | Sagittarius 29° | 4 | Gemini | Mrigashira 1 | Jupiter Saturn |
| 1943 | Sagittarius 28.75° | 5 | Libra | Chitra 1 | Mars Jupiter Saturn |
| 1944 | Sagittarius 29.52° | 6 | Pisces | Purva Bhadrapada 1 | Mercury Saturn |
| 1945 | Sagittarius 29.28° | 7 | Leo | Pushya 2 | Mars Saturn |
| 1946 | Sagittarius 29.03° | 8 | Sagittarius | Anuradha 4 | Saturn |
| 1947 | Sagittarius 28.78° | 9 | Aries | Uttara Bhadrapada 4 | Saturn |
| 1948 | Sagittarius 29.55° | 1 | Virgo | Purva Phalguni 1 | Saturn |
| 1949 | Sagittarius 29.31° | 11 | Capricorn | Uttara Ashadha 1 | — |
| 1950 | Sagittarius 29.06° | 3 | Taurus | Krittika 3 | — |
| 1951 | Sagittarius 28.81° | 4 | Virgo | Uttara Phalguni 3 | Mercury |
| 1952 | Sagittarius 29.58° | 5 | Aquarius | Dhanishta 4 | Jupiter |
| 1953 | Sagittarius 29.34° | 6 | Cancer | Ardra 4 | Jupiter |
| 1954 | Sagittarius 29.09° | 7 | Scorpio | Vishakha 2 | Jupiter |
| 1955 | Sagittarius 28.84° | 8 | Pisces | Purva Bhadrapada 2 | Jupiter |
| 1956 | Sagittarius 29.61° | 9 | Leo | Ashlesha 4 | — |
| 1957 | Sagittarius 29.37° | 1 | Capricorn | Mula 3 | Mercury |
| 1958 | Sagittarius 29.12° | 11 | Taurus | Bharani 1 | — |
| 1959 | Sagittarius 28.87° | 3 | Virgo | Purva Phalguni 1 | — |
| 1960 | Sagittarius 29.64° | 4 | Aquarius | Shravana 3 | Mars |
| 1961 | Sagittarius 29.4° | 5 | Gemini | Mrigashira 2 | — |
| 1962 | Sagittarius 29.15° | 6 | Libra | Chitra 4 | — |
| 1963 | Sagittarius 28.9° | 7 | Pisces | Shatabhisha 1 | — |
| 1964 | Sagittarius 29.67° | 8 | Leo | Pushya 2 | Mercury Jupiter |
| 1965 | Sagittarius 29.43° | 9 | Sagittarius | Jyeshtha 2 | Jupiter |
| 1966 | Sagittarius 29.18° | 1 | Aries | Revati 2 | Jupiter |
| 1967 | Sagittarius 28.93° | 11 | Leo | Ashlesha 4 | — |
| 1968 | Sagittarius 29.7° | 3 | Capricorn | Uttara Ashadha 2 | Saturn |
| 1969 | Sagittarius 29.46° | 4 | Gemini | Rohini 1 | Saturn |
| 1970 | Sagittarius 29.21° | 5 | Libra | Hasta 1 | Mercury Saturn |
| 1971 | Sagittarius 28.96° | 6 | Aquarius | Shravana 4 | Mercury Saturn |
| 1972 | Sagittarius 29.73° | 7 | Cancer | Punarvasu 1 | Saturn |
| 1973 | Sagittarius 29.48° | 8 | Scorpio | Vishakha 4 | Saturn |
| 1974 | Sagittarius 29.24° | 9 | Pisces | Purva Bhadrapada 4 | Saturn |
| 1975 | Sagittarius 28.99° | 1 | Leo | Pushya 3 | Mars Saturn |
| 1976 | Sagittarius 29.76° | 11 | Capricorn | Mula 4 | Jupiter Saturn |
| 1977 | Sagittarius 29.51° | 3 | Taurus | Bharani 3 | Mercury Mars Jupiter Saturn |
| 1978 | Sagittarius 29.27° | 4 | Virgo | Purva Phalguni 3 | Jupiter |
| 1979 | Sagittarius 29.02° | 5 | Capricorn | Uttara Ashadha 2 | — |
| 1980 | Sagittarius 29.79° | 6 | Gemini | Mrigashira 3 | — |
| 1981 | Sagittarius 29.54° | 7 | Scorpio | Swati 2 | — |
| 1982 | Sagittarius 29.3° | 8 | Pisces | Shatabhisha 2 | — |
| 1983 | Sagittarius 29.05° | 9 | Cancer | Punarvasu 2 | — |
| 1984 | Sagittarius 29.82° | 1 | Sagittarius | Jyeshtha 3 | Mercury |
| 1985 | Sagittarius 29.57° | 11 | Aries | Ashwini 1 | — |
| 1986 | Sagittarius 29.33° | 3 | Leo | Magha 1 | — |
| 1987 | Sagittarius 29.08° | 4 | Capricorn | Purva Ashadha 1 | — |
| 1988 | Sagittarius 29.85° | 5 | Gemini | Rohini 2 | Jupiter |
| 1989 | Sagittarius 29.6° | 6 | Libra | Hasta 4 | Jupiter |
| 1990 | Sagittarius 29.36° | 7 | Aquarius | Shravana 4 | Mercury Mars Jupiter |
| 1991 | Sagittarius 29.11° | 8 | Gemini | Mrigashira 4 | — |
| 1992 | Sagittarius 29.88° | 9 | Scorpio | Anuradha 1 | Mars |
| 1993 | Sagittarius 29.63° | 1 | Aries | Uttara Bhadrapada 3 | — |
| 1994 | Sagittarius 29.39° | 11 | Leo | Pushya 4 | — |
| 1995 | Sagittarius 29.14° | 3 | Sagittarius | Jyeshtha 4 | — |
| 1996 | Sagittarius 29.91° | 4 | Taurus | Krittika 1 | — |
| 1997 | Sagittarius 29.66° | 5 | Virgo | Uttara Phalguni 2 | Mercury |
| 1998 | Sagittarius 29.42° | 6 | Capricorn | Uttara Ashadha 3 | Saturn |
| 1999 | Sagittarius 29.17° | 7 | Gemini | Rohini 3 | Saturn |
| 2000 | Sagittarius 29.94° | 8 | Scorpio | Swati 4 | Jupiter Saturn |
| 2001 | Sagittarius 29.69° | 9 | Pisces | Purva Bhadrapada 1 | Jupiter Saturn |
| 2002 | Sagittarius 29.44° | 1 | Cancer | Punarvasu 2 | Jupiter Saturn |
| 2003 | Sagittarius 29.2° | 11 | Sagittarius | Anuradha 2 | Mercury Saturn |
| 2004 | Sagittarius 29.97° | 3 | Taurus | Ashwini 3 | Saturn |
| 2005 | Sagittarius 29.72° | 4 | Virgo | Magha 4 | Saturn |
| 2006 | Sagittarius 29.47° | 5 | Capricorn | Purva Ashadha 2 | Saturn |
| 2007 | Sagittarius 29.23° | 6 | Taurus | Krittika 1 | Mars Saturn |
| 2008 | Sagittarius 30° | 7 | Libra | Chitra 3 | — |
| 2009 | Sagittarius 29.75° | 8 | Aquarius | Dhanishta 3 | Mars |
| 2010 | Sagittarius 29.5° | 9 | Cancer | Ardra 1 | Mercury |
| 2011 | Sagittarius 29.26° | 1 | Scorpio | Vishakha 1 | Jupiter |
| 2012 | Capricorn 0.03° | 11 | Aries | Revati 2 | Jupiter |
| 2013 | Sagittarius 29.78° | 3 | Leo | Ashlesha 2 | Jupiter |
| 2014 | Sagittarius 29.53° | 4 | Sagittarius | Jyeshtha 4 | Jupiter |
| 2015 | Sagittarius 29.29° | 5 | Taurus | Ashwini 4 | — |
| 2016 | Capricorn 0.06° | 6 | Libra | Hasta 1 | Mercury |
| 2017 | Sagittarius 29.81° | 7 | Aquarius | Shravana 1 | Mercury |
| 2018 | Sagittarius 29.56° | 8 | Gemini | Rohini 3 | — |
| 2019 | Sagittarius 29.32° | 9 | Libra | Chitra 4 | — |
| 2020 | Capricorn 0.09° | 1 | Pisces | Purva Bhadrapada 4 | — |
| 2021 | Sagittarius 29.84° | 11 | Cancer | Punarvasu 4 | Venus |
| 2022 | Sagittarius 29.59° | 3 | Sagittarius | Anuradha 2 | Mars |
| 2023 | Sagittarius 29.35° | 4 | Aries | Revati 4 | Mercury Jupiter |
| 2024 | Capricorn 0.12° | 5 | Virgo | Purva Phalguni 3 | Mars Jupiter |
| 2025 | Sagittarius 29.87° | 6 | Capricorn | Purva Ashadha 3 | Jupiter |
| 2026 | Sagittarius 29.62° | 7 | Taurus | Krittika 1 | Jupiter |
| 2027 | Sagittarius 29.38° | 8 | Libra | Hasta 3 | Saturn |
| 2028 | Capricorn 0.15° | 9 | Pisces | Shatabhisha 1 | Saturn |
| 2029 | Sagittarius 29.9° | 1 | Cancer | Ardra 2 | Venus Saturn |
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 December
Day of the year
356 of 366
Mercury was retrograde on this date in
18 of 100 years
(18%)
Most recent of those
1997, 2003, 2010, 2016, 2017, 2023
Full moon fell on this date in
7 years — 1972, 1980, 1991, 2010, 2029
Most frequent moon phase
Waxing Gibbous · 20 years
Every figure here is specific to 21 December: 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
Sagittarius
life path 5
2007
Sagittarius
life path 6
2008
Sagittarius
life path 7
2009
Sagittarius
life path 8
2010
Sagittarius
life path 9
2011
Sagittarius
life path 1
2012
Capricorn
life path 11
2013
Sagittarius
life path 3
2014
Sagittarius
life path 4
2015
Sagittarius
life path 5
2016
Capricorn
life path 6
2017
Sagittarius
life path 7
2018
Sagittarius
life path 8
2019
Sagittarius
life path 9
2020
Capricorn
life path 1
2021
Sagittarius
life path 11
2022
Sagittarius
life path 3
2023
Sagittarius
life path 4
2024
Capricorn
life path 5
2025
Sagittarius
life path 6
2026
Sagittarius
life path 7
2027
Sagittarius
life path 8
2028
Capricorn
life path 9
2029
Sagittarius
life path 1
Notice the sign column changing — that is the boundary at work.
Life path numbers this date produces
1
12 years · 12%
11
11 years · 11%
3
11 years · 11%
4
11 years · 11%
5
11 years · 11%
6
11 years · 11%
7
11 years · 11%
8
11 years · 11%
9
11 years · 11%
The most frequent is 1 with 12 years; the scarcest is 9 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 December that came out Sagittarius in 95% of years and Capricorn in 5%, switching 10 times since 1930. Most recently in 2025, 2028, 2029.