In love
Needs room and honesty. Reads possessiveness as a threat rather than devotion.
Boundary date · 10 switches since 1930
December 21 zodiac sign: Sagittarius or Capricorn?
The December 21 zodiac sign is Sagittarius in 95% of years from 1930 to 2029 and Capricorn in 5% — the date sits on a sign boundary, so the honest answer needs your birth year.
- Sun sign
- Sagittarius 95% of years · Capricorn 5%
- US births a day
- 11,976 #53 of 366 dates
- Day of the year
- 355th 356th in leap years
- Sign changes 2026
- 8:50 PM UTC Dec 21, into Capricorn
Births: US Social Security Administration 2000–2014. Sun: NASA JPL DE440.
Exact times
December 21 2026: the exact sign change in your city
In 2026 the Sun enters Capricorn at 8:50 PM UTC on December 21 — 5:50 PM in Santiago, 3:50 PM in New York, 8:50 PM in London and 5:50 AM on December 22 in Tokyo. Born on December 21 2026 before that moment, a baby is Sagittarius; after it, Capricorn.
| City | Sun enters Capricorn |
|---|---|
| UTC | Mon, Dec 21 |
| Honolulu United States | 10:50 AM Mon, Dec 21 · UTC−10 |
| Anchorage United States | 11:50 AM Mon, Dec 21 · UTC−9 |
| Los Angeles United States | 12:50 PM Mon, Dec 21 · UTC−8 |
| Phoenix United States | 1:50 PM Mon, Dec 21 · UTC−7 |
| Denver United States | 1:50 PM Mon, Dec 21 · UTC−7 |
| Chicago United States | 2:50 PM Mon, Dec 21 · UTC−6 |
| Mexico City Mexico | 2:50 PM Mon, Dec 21 · UTC−6 |
| New York United States | 3:50 PM Mon, Dec 21 · UTC−5 |
| Toronto Canada | 3:50 PM Mon, Dec 21 · UTC−5 |
| Bogotá Colombia | 3:50 PM Mon, Dec 21 · UTC−5 |
| Lima Peru | 3:50 PM Mon, Dec 21 · UTC−5 |
| Caracas Venezuela | 4:50 PM Mon, Dec 21 · UTC−4 |
| Santiago Chile | 5:50 PM Mon, Dec 21 · UTC−3 |
| Buenos Aires Argentina | 5:50 PM Mon, Dec 21 · UTC−3 |
| São Paulo Brazil | 5:50 PM Mon, Dec 21 · UTC−3 |
| Reykjavík Iceland | 8:50 PM Mon, Dec 21 · UTC |
| London United Kingdom | 8:50 PM Mon, Dec 21 · UTC |
| Lagos Nigeria | 9:50 PM Mon, Dec 21 · UTC+1 |
| Paris France | 9:50 PM Mon, Dec 21 · UTC+1 |
| Berlin Germany | 9:50 PM Mon, Dec 21 · UTC+1 |
| Johannesburg South Africa | 10:50 PM Mon, Dec 21 · UTC+2 |
| Cairo Egypt | 10:50 PM Mon, Dec 21 · UTC+2 |
| Athens Greece | 10:50 PM Mon, Dec 21 · UTC+2 |
| Istanbul Turkey | 11:50 PM Mon, Dec 21 · UTC+3 |
| Moscow Russia | 11:50 PM Mon, Dec 21 · UTC+3 |
| Nairobi Kenya | 11:50 PM Mon, Dec 21 · UTC+3 |
| Tehran Iran | 12:20 AM Tue, Dec 22 · UTC+3:30 |
| Dubai United Arab Emirates | 12:50 AM Tue, Dec 22 · UTC+4 |
| Karachi Pakistan | 1:50 AM Tue, Dec 22 · UTC+5 |
| New Delhi India | 2:20 AM Tue, Dec 22 · UTC+5:30 |
| Kathmandu Nepal | 2:35 AM Tue, Dec 22 · UTC+5:45 |
| Dhaka Bangladesh | 2:50 AM Tue, Dec 22 · UTC+6 |
| Bangkok Thailand | 3:50 AM Tue, Dec 22 · UTC+7 |
| Jakarta Indonesia | 3:50 AM Tue, Dec 22 · UTC+7 |
| Singapore | 4:50 AM Tue, Dec 22 · UTC+8 |
| Beijing China | 4:50 AM Tue, Dec 22 · UTC+8 |
| Manila Philippines | 4:50 AM Tue, Dec 22 · UTC+8 |
| Perth Australia | 4:50 AM Tue, Dec 22 · UTC+8 |
| Seoul South Korea | 5:50 AM Tue, Dec 22 · UTC+9 |
| Tokyo Japan | 5:50 AM Tue, Dec 22 · UTC+9 |
| Adelaide Australia | 7:20 AM Tue, Dec 22 · UTC+10:30 |
| Brisbane Australia | 6:50 AM Tue, Dec 22 · UTC+10 |
| Sydney Australia | 7:50 AM Tue, Dec 22 · UTC+11 |
| Auckland New Zealand | 9:50 AM Tue, Dec 22 · UTC+13 |
Sun’s ingress from the NASA JPL DE440 ephemeris; Swiss Ephemeris agrees within 5 seconds. Local times: IANA time zones, to the minute.
18 pages · printable
The 2027 Sky Calendar — free PDF
Every retrograde, eclipse, new and full moon of 2027 to the minute, already converted to your city. A month to a page, ready to print.
How common is this birthday
December 21 among the 366 days
December 21 averages 11,976 births a day in the US — the 53rd most common of the 366 dates, 5.5% above the average day. The deep dips are holidays.
Which sign, by birth year
- Sagittarius at midday UTC
- Capricorn at midday UTC
- Sign changed during the day (UTC)
- 2026
Sagittarius at midday UTC in 95 years and Capricorn in 5: 2012, 2016, 2020, 2024 and 2028. In 42 of the years — dotted — the Sun entered Capricorn during December 21 itself, so a birth that day can be either sign depending on the hour.
- Sagittarius
- Capricorn
- 2026
The bar is the whole of December 21 in UTC; where its color changes, the Sun crossed into Capricorn, so a birth after that minute is Capricorn. The time on the right is that minute.
- 16 of these 21 years had the change inside December 21 itself, so the hour of birth decides — from as early as 7:56 AM UTC in 2032 to as late as 11:03 PM in 2014.
- In 2015, 2019, 2023, 2027 and 2031 the whole day was still Sagittarius: the Sun reached Capricorn only on December 22.
- Two sites can give two different signs for December 21 because both print a fixed range, and no fixed range is right in every year — the noon sign here flipped 10 times between 1930 and 2029.
Saturn-ruled decan of Sagittarius
Decan
3 of 3 · 20°–30°
Sub-ruler
Saturn
Sign ruler
Jupiter
Sun at noon, 2026
29°37′
December 21 closes Sagittarius in 2026, inside the Saturn decan — the Sun moves on to Capricorn at 8:50 PM UTC on December 21.
Saturn narrows and hardens the sign, making it slower to commit and more durable once it has. The last ten degrees of Sagittarius already turn toward Capricorn, which is why this third often reads as the most complicated.
Personality
December 21 birthday personality
People born on December 21 are Sagittarius in most years, and the sign is read as expansion, honesty and appetite for the unfamiliar. Genuinely open-minded and hard to discourage. Says the thing nobody else will.
The 21st reduces to 3 and combines 2 (sensitivity) with 1 (originality). Numerologists read it as sociable creativity: those born on this day are imaginative, expressive and good at connecting with people, frequently with a talent for writing, speaking or performing. Birthday number 21 in full →
At work
Good with big-picture strategy, teaching and anything international. Bored by detail.
Stone and flower
The December birthstones are turquoise, zircon and tanzanite (blue to blue-violet), and the month's flowers are the narcissus and holly.
Look up your birth year
Every year, computed
All 100 years for December 21. 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 29.2° | 4 | Aquarius | Shatabhisha 1 | — |
| 1934 | Sagittarius 28.95° | 5 | Cancer | Ardra 2 | — |
| 1935 | Sagittarius 28.7° | 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 29.49° | 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 29.3° | 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 29.59° | 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 28.85° | 8 | Pisces | Purva Bhadrapada 2 | Jupiter |
| 1956 | Sagittarius 29.62° | 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 29.39° | 5 | Gemini | Mrigashira 2 | — |
| 1962 | Sagittarius 29.14° | 6 | Libra | Chitra 4 | — |
| 1963 | Sagittarius 28.9° | 7 | Pisces | Shatabhisha 1 | — |
| 1964 | Sagittarius 29.67° | 8 | Leo | Pushya 3 | Mercury Jupiter |
| 1965 | Sagittarius 29.42° | 9 | Sagittarius | Jyeshtha 2 | Jupiter |
| 1966 | Sagittarius 29.17° | 1 | Aries | Revati 2 | Jupiter |
| 1967 | Sagittarius 28.93° | 11 | Leo | Ashlesha 4 | — |
| 1968 | Sagittarius 29.7° | 3 | Capricorn | Uttara Ashadha 2 | — |
| 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 29.74° | 7 | Cancer | Punarvasu 1 | Saturn |
| 1973 | Sagittarius 29.49° | 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 29.52° | 3 | Taurus | Bharani 3 | Mercury Mars Jupiter Saturn |
| 1978 | Sagittarius 29.26° | 4 | Virgo | Purva Phalguni 3 | Jupiter |
| 1979 | Sagittarius 29.02° | 5 | Capricorn | Uttara Ashadha 3 | — |
| 1980 | Sagittarius 29.79° | 6 | Gemini | Mrigashira 3 | — |
| 1981 | Sagittarius 29.54° | 7 | Scorpio | Swati 2 | — |
| 1982 | Sagittarius 29.29° | 8 | Pisces | Shatabhisha 2 | — |
| 1983 | Sagittarius 29.05° | 9 | Cancer | Punarvasu 2 | — |
| 1984 | Sagittarius 29.81° | 1 | Sagittarius | Jyeshtha 3 | Mercury |
| 1985 | Sagittarius 29.57° | 11 | Aries | Ashwini 1 | — |
| 1986 | Sagittarius 29.32° | 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 | Cancer | Mrigashira 4 | — |
| 1992 | Sagittarius 29.88° | 9 | Scorpio | Anuradha 1 | Mars |
| 1993 | Sagittarius 29.64° | 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 29.41° | 6 | Capricorn | Uttara Ashadha 3 | Saturn |
| 1999 | Sagittarius 29.16° | 7 | Gemini | Rohini 3 | Saturn |
| 2000 | Sagittarius 29.93° | 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 29.19° | 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 29.99° | 7 | Libra | Chitra 3 | — |
| 2009 | Sagittarius 29.75° | 8 | Aquarius | Dhanishta 3 | Mars |
| 2010 | Sagittarius 29.51° | 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 0.05° | 6 | Libra | Hasta 1 | Mercury |
| 2017 | Sagittarius 29.81° | 7 | Aquarius | Shravana 1 | Mercury |
| 2018 | Sagittarius 29.56° | 8 | Gemini | Rohini 3 | — |
| 2019 | Sagittarius 29.31° | 9 | Libra | Chitra 4 | — |
| 2020 | Capricorn 0.08° | 1 | Pisces | Purva Bhadrapada 4 | — |
| 2021 | Sagittarius 29.83° | 11 | Cancer | Punarvasu 4 | Venus |
| 2022 | Sagittarius 29.58° | 3 | Sagittarius | Anuradha 2 | Mars |
| 2023 | Sagittarius 29.34° | 4 | Aries | Revati 4 | Mercury Jupiter |
| 2024 | Capricorn 0.11° | 5 | Virgo | Purva Phalguni 3 | Mars Jupiter |
| 2025 | Sagittarius 29.87° | 6 | Capricorn | Purva Ashadha 3 | Jupiter |
| 2026 | Sagittarius 29.63° | 7 | Taurus | Krittika 1 | Jupiter |
| 2027 | Sagittarius 29.38° | 8 | Libra | Hasta 3 | Saturn |
| 2028 | Capricorn 0.16° | 9 | Pisces | Shatabhisha 1 | Saturn |
| 2029 | Sagittarius 29.91° | 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 December 21
Day of the year
356 of 366
Mercury was retrograde on this date in
18 of 100 years
(18%)
Latest of those, to 2029
1997, 2003, 2010, 2016, 2017, 2023
Full moon fell on this date in
6 years — 1934, 1961, 1980, 1991, 2010, 2029
Most frequent moon phase
Waxing Crescent · 19 years
Counted for December 21 alone, at noon UTC in each year from 1930 to 2029. Why the counts differ from date to date →
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
The sign changes from one year to the next in some of these tiles — 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; every other number, 11 included, turns up in 11 years. And this date can carry a master number: 11 in 11 of those years — kept whole rather than reduced. 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 December 21 that came out Sagittarius in 95% of years and Capricorn in 5%. The noon sign switched 10 times between 1930 and 2029; the last three switches fall in 2025, 2028 and 2029.
Questions about December 21 birthdays
What zodiac sign is December 21?
Usually Sagittarius: 95% of years from 1930 to 2029. In the other 5% of years (the last of them 2028) the Sun had already reached Capricorn by midday UTC, and in 42 of the 100 years it changed sign during the day itself, so the birth hour decides.
What life path numbers does December 21 produce?
Across 100 birth years the most common is 1 (12 years); every other number appears in 11 years.
Which decan is December 21?
In 2026, the 3rd decan of Sagittarius, 20° to 30°, sub-ruled by Saturn in the Chaldean order.
Can December 21 be a master number birth date?
Yes — 11, in 11 of the 100 years: 1931, 1940, 1949, 1958, 1967, 1976, 1985, 1994, 2003, 2012 and 2021.
Cite this page
AstroHot. “December 21 Zodiac Sign: Sagittarius or Capricorn?” Accessed October 28, 2026. https://astrohot.com/birthday/december-21/
For Wikipedia
{{cite web |title=December 21 Zodiac Sign: Sagittarius or Capricorn? |url=https://astrohot.com/birthday/december-21/ |website=AstroHot |access-date=2026-10-28}}