January 23 birthdayZodiac sign, famous birthdays, personality and your 2027 numbers
The short answer
January 23 is an Aquarius birthday in the first decan of Aquarius with birthday number 5 and a Personal Year 8 in 2027; David Hilbert (1862), Stendhal (1783) and Édouard Manet (1832) were born on January 23 too.
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January 23 zodiac sign: Aquarius
- Sun sign
- Aquarius
- Sun at noon UTC
- 2.3° to 3.8° Aquarius
- Decan
- First of Aquarius, 0° to 10°
- Element and mode
- Air, fixed
- Ruling planet
- Uranus; Saturn by tradition
In every one of the 91 years from 1940 to 2030 the Sun stood in Aquarius for the whole of January 23, in every time zone on Earth, between 2.3° and 3.8° of the sign at noon UTC, so a January 23 birthday is an Aquarius birthday whatever the year or the hour.
At noon UTC on January 23 the Sun is in the first decan of Aquarius, 0° to 10°, in every one of those years, a face that belongs to Venus in the Chaldean order and is read through Aquarius, ruled by Saturn, by triplicity; in most years the decan runs from January 20 to January 29, and January 23 is its fourth day.
In most years January 23 is the 4th day of the Sun’s season in Aquarius, which runs from January 20 to February 18 counted at noon UTC, with 26 days of it still to come. January 23 is the 23rd day of every year, with 342 days of the year still to come, or 343 in a leap year.
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Famous January 23 birthdays
The earliest born of the twelve is Stendhal, in 1783, and the most recent Arjen Robben, in 1984; one of them was born after 1949.
Born since 1950
- Arjen Robben (born 1984), Dutch association football player
Born from 1900 to 1949
- Derek Walcott (1930–2017), Saint Lucian–Trinidadian poet and playwright
- Hideki Yukawa (1907–1981), Japanese theoretical physicist
- Gertrude B. Elion (1918–1999), American biochemist and pharmacologist
- Jeanne Moreau (1928–2017), French actress, singer, screenwriter and director
- Rutger Hauer (1944–2019), Dutch actor
Born in the 1800s
- David Hilbert (1862–1943), German mathematician
- Édouard Manet (1832–1883), French painter
- Subhas Chandra Bose (1897–1945), Indian nationalist leader
- Otto Diels (1876–1954), German chemist
- Ernst Abbe (1840–1905), German physicist
Born before 1800
- Stendhal (1783–1842), French writer
Birthdays from Wikidata, checked against Wikipedia’s “On this day” births: the twelve best known of the 68 people the Almanac’s table keeps for January 23, by how many Wikipedia editions cover them.
January 23 birthday personality
Venus opens Aquarius in the Chaldean scheme while Saturn, its traditional ruler, keeps it by triplicity, so the water-bearer’s ideals are read here through friendship: the circle, the cause shared over a meal. Tradition warns that a love for people in general can overlook the person in front of you.
The 23rd adds 2 and 3 into 5, so numerology reads it as a lively, curious birthday, the partner and the talker becoming the traveller. It is linked with versatility and a quick wit. In an air sign the 5 is read as the eternal student, with a thirst for news, travel and the next good question.
A question to carry from January 23: which routine is your independence of mind ready to change, and which one is worth keeping?
The Sun in Aquarius and the number 5 are only part of the story: your Moon, your rising sign and the rest of your chart have as much to say, and the tradition offers all this as a mirror, never a verdict.
Birthday number 5
Born on the 23rd, 2 + 3 = 5, so your birthday number is 5: a 5 vibration supports freedom, change, movement, curiosity, and experimentation, with adaptability and discovery as its gift and restlessness, inconsistency, or escapism as its strain.
Your 2027 numbers

For a birthday on January 23 the house method reduces the birth month and the day on their own and adds the Universal Year of 2027, 11 (2 + 0 + 2 + 7 = 11, a master number kept whole), as it stands: January, the 1st month, gives 1, the 23rd reduces to 5, and 1 + 5 + 11 = 17, which reduces to 8, so 2027 is your Personal Year 8.
A Personal Year 8 is read as a year of achievement and authority, when effort can turn into reward and recognition. In a Universal Year 11 the tradition asks that power and money be used with integrity and vision.
Personal Months of 2027, a Personal Year 8: Jan 9 Feb 1 Mar 11 Apr 3 May 4 Jun 5 Jul 6 Aug 7 Sep 8 Oct 9 Nov 1 Dec 2
In 2027 January 23 falls on a Saturday, the day the old reckoning gives to Saturn, and is a Personal Day 5 (9 + 23 = 32, then 5) in a Personal Month 9 (8 + 1 = 9), while March is a master month 11; the Personal Year itself turns on 1 January, not on the birthday.
January birthstone and birth flower
- Birthstone
- Garnet
- Birth flowers
- Carnation, and snowdrop as the second flower
January’s garnet comes from the modern list (the Jewelers of America list of 1912, as since revised), and its carnation and snowdrop from The Old Farmer’s Almanac.
More birthdays
Common questions
What zodiac sign is January 23?
Aquarius: from 1940 to 2030 the Sun stayed in Aquarius for the whole of January 23 in every year and every time zone, 2.3° to 3.8° into the sign at noon UTC, so no birth year or birth time changes it.
Is January 23 a cusp birthday?
No: the Sun stays in Aquarius all day on January 23 in every year from 1940 to 2030, wherever on Earth the birth takes place, and the nearest cusp birthday is January 21, two days earlier.
Who was born on January 23?
Among the best known people born on January 23 are David Hilbert (1862–1943), Stendhal (1783–1842) and Édouard Manet (1832–1883), with Derek Walcott, Arjen Robben and Hideki Yukawa and six more named on this page.
What is the birthday number for January 23?
5. Born on the 23rd, 2 + 3 = 5, so your birthday number is 5: a 5 vibration supports freedom, change, movement, curiosity, and experimentation, with adaptability and discovery as its gift and restlessness, inconsistency, or escapism as its strain.
What is the 2027 Personal Year for a January 23 birthday?
8. For a birthday on January 23 the house method reduces the birth month and the day on their own and adds the Universal Year of 2027, 11 (2 + 0 + 2 + 7 = 11, a master number kept whole), as it stands: January, the 1st month, gives 1, the 23rd reduces to 5, and 1 + 5 + 11 = 17, which reduces to 8, so 2027 is your Personal Year 8.
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