Birthday signs · Sagittarius season
What zodiac sign is December 20?
December 20 is situated in Sagittarius on the tropical zodiac. For all 101 years from 1930 through 2030, the Sun stood in Sagittarius at noon UTC on December 20, at 27.65° to 29.14° Sagittarius. Sagittarius season, day 28 or 29, is December 20, occupying its late part with the element fire.
Calculated across 1930–2030 · checked .
December 20 is Sagittarius
| Sagittarius at noon UTC | 101 of 101 years, 1930–2030 |
|---|---|
| Nearest change of sign | at least 0 days away |
| Birth time needed for the sign | no |
December 20 at a glance
| Sign | ♐︎ Sagittarius, the Archer |
|---|---|
| Element and mode | fire, mutable |
| Polarity | positive (masculine) |
| Ruler | Jupiter (traditional) |
| Sun on this date | 27.6° to 29.1° Sagittarius at noon UTC, 1930–2030 |
| Day of the season | day 28 or 29 of Sagittarius season |
| Decan | third (20°–30°), face of Saturn |
| Sidereal sign (Lahiri) | Sagittarius |
| Day number | 2 (modern numerology) |
Rulers: Ptolemy; modern list.6
The decan: late Sagittarius
| Noon Sun | 27.65° to 29.14° Sagittarius |
|---|---|
| Decan | third (20°–30°) |
| Face ruler, Chaldean order | Saturn |
Faces after Lilly, in Chaldean order.3
December 20 by the numbers
| Day number | 2 (2 + 0 = 2) |
|---|---|
| Month-day number | 5 (3 + 2) |
| System | modern numerology, digit sums |
Digit sums as numerology guides give them.4
Where the date falls in the season
| Day of Sagittarius season | 28 or 29 |
|---|---|
| Sagittarius season opened | November 22 (48 years) or November 23 (53) |
| Sagittarius season closed | December 20 (5 years) or December 21 (82) or December 22 (14) |
| Element and mode | fire, mutable |
| Traditional ruler | Jupiter |
Seasons by the noon-UTC rule; rulers after Ptolemy.2
Born at this point in Sagittarius season
Someone born on December 20 arrives near the close of Sagittarius, when the urge to explore runs into a need to finish things. Plans multiply, and so does the tiredness of carrying them. Friends see someone who keeps starting something new. Late in the season, though, the real test is whether the last mile gets walked. Saying no to one more idea can be the hardest part of the year.
Interpretation, not prediction.
The sidereal sign
| Sidereal sign, Lahiri ayanamsa | Sagittarius, all 101 years |
|---|---|
| Noon Sun, sidereal Sagittarius | 4.1°–5.5° |
| Convention | Indian (Vedic) astrology |
Ayanamsa convention.5
Born on December 20
- Jaroslav Heyrovský (1890–1967), Czech chemist
- Kim Young-sam (1927–2015), President of South Korea from 1993 to 1998
- Binali Yıldırım (1955), Prime Minister of Turkey
- Martin Schulz (1955), German politician
- Mohamed Ould Abdel Aziz (1956), President of Mauritania from 2009 to 2019
- Kim Ki-duk (1960–2020), South Korean film director
- Ashley Cole (1980), English association football player
- Kylian Mbappé (1998), French association football player
Birth dates checked on Wikidata.7
December 20 in history
Observed on this date:
- Abolition of Slavery Day, also known as Fête des Cafres (Réunion, French Guiana)
- Bo Aung Kyaw Day (Myanmar)
- Yaldā (Iran)
- International Human Solidarity Day (International)
- Macau Special Administrative Region Establishment Day (Macau)
Events on December 20:
- 69: Antonius Primus enters Rome to claim the title of Emperor for Nero's former general Vespasian.
- 1803: The Louisiana Purchase is completed at a ceremony in New Orleans.
- 1946: It's a Wonderful Life premieres at the Globe Theatre in New York to mixed reviews.
- 1957: The initial production version of the Boeing 707 makes its first flight.
How the answer was worked out
Astronomy Engine calculated the Sun's tropical longitude on December 20 at noon UTC for each year from 1930 through 2030, and the sign for each year was then read from it.1 How the Machine works
Questions people also ask
What zodiac sign is December 20?
The 101 sampled years from 1930 to 2030 all show December 20 in Sagittarius when counting the Sun at noon UTC.
Is December 20 on a zodiac cusp?
No. The Sun at noon was located in Sagittarius on each December 20 from 1930 through 2030, and December 20 lies a minimum of 0 days from the nearest change of sign.
What decan is December 20?
In all sampled years December 20 appears in the third decan of Sagittarius (20°–30°), giving Saturn as its face ruler in the Chaldean order.
What is the birthday number for December 20?
Within modern numerology, adding digits produces a day number of 2 and a month-day number of 5 for December 20.
Sources
- Astronomy Engine JavaScript reference — Don Cross, Astronomy Engine. Verified .
- Ptolemy, Tetrabiblos, Book I — LacusCurtius, University of Chicago. Verified .
- Decan (astrology): the faces of the planets (after Lilly) — Wikipedia. Verified .
- Life Path Number — Numerology.com (practitioner site). Verified .
- Ayanamsa (Lahiri and other sidereal conventions) — Wikipedia. Verified .
- Sagittarius (astrology) — Wikipedia. Verified .
- Wikipedia: December 20 — Wikipedia (Wikimedia On this day feed); birth dates checked on Wikidata. Verified .