January 21 birthdayZodiac sign, famous birthdays, personality and your 2027 numbers
The short answer
January 21 is a cusp birthday, usually Aquarius; in some years the Sun is still in Capricorn for part of this date, so check your birth year and time, with birthday number 3 and a Personal Year 6 in 2027; Grigori Rasputin (1869), IShowSpeed (2005) and Paul Allen (1953) were born on January 21 too.
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January 21 zodiac sign: Capricorn or Aquarius
- Sun sign
- Capricorn or Aquarius, a cusp day
- Sun at noon UTC
- 0.3° to 1.7° Aquarius
- Decan
- First of Aquarius, 0° to 10°
- Element and mode
- Air, fixed
- Ruling planet
- Uranus; Saturn by tradition
January 21 is a cusp birthday, usually Aquarius; in some years the Sun is still in Capricorn for part of this date, so check your birth year and time: in 7 of the 91 years from 1940 to 2030 the Sun crossed from Capricorn into Aquarius during January 21 counted in UTC, most recently in 1964, and at noon UTC it stood in Aquarius in every year, so the change came before noon, early in the day. For a birth on January 21 the year, the time and the place settle the sign: convert the time of birth to UTC and compare it with the minute the Sun changed sign that year, or let the zodiac sign calculator do it from your date, time and city.
At noon UTC on January 21 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 21 is its second day.
In most years January 21 is the 2nd day of the Sun’s season in Aquarius, which runs from January 20 to February 18 counted at noon UTC, with 28 days of it still to come. January 21 is the 21st day of every year, with 344 days of the year still to come, or 345 in a leap year.
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Famous January 21 birthdays
The earliest born of the twelve is Charles V of France, in 1338, and the most recent IShowSpeed, in 2005; six of them were born after 1949.
Born since 1950
- IShowSpeed (born 2005), American influencer, musician and online streamer
- Paul Allen (1953–2018), American businessman and philanthropist
- Geena Davis (born 1956), American actress
- Henrikh Mkhitaryan (born 1989), Armenian association football player
- Hakeem Olajuwon (born 1963), Nigerian-American basketball player
- Marco Asensio (born 1996), Spanish association football player
Born from 1900 to 1949
- Plácido Domingo (born 1941), Spanish tenor and conductor
- Christian Dior (1905–1957), French fashion designer
- Konrad Emil Bloch (1912–2000), German American biochemist
Born in the 1800s
- Grigori Rasputin (1869–1916), Russian mystic
- Oscar II (1829–1907), King of Sweden from 1872 to 1907
Born before 1800
- Charles V of France (1338–1380), King of France from 1364 to 1380
Birthdays from Wikidata, checked against Wikipedia’s “On this day” births: the twelve best known of the 129 people the Almanac’s table keeps for January 21, by how many Wikipedia editions cover them, with dates before the calendar reform as the sources give them.
January 21 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.
Born on the 21st, 2 and 1 add to 3: partnership and initiative turning into expression. Numerology reads it as a sociable, creative birthday, the host who is also the entertainer. The tradition reads air with a 3 as the communicator’s pairing, whose talk is best when it builds a bridge rather than a stage.
Where Capricorn gives way to Aquarius tradition meets reform, the keeper of the rules meeting the one who would rewrite them. Some readers take a birthday this close to the change to carry something of both signs, a symbolic reading the calculation cannot measure; which sign the Sun was in at a birth is a matter of fact, settled by the year, the time and the place.
A question to carry from January 21: what would your independence of mind make if it set aside the fear of how it will be received?
The Sun in Aquarius and the number 3 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 3
Born on the 21st, 2 + 1 = 3, so your birthday number is 3: a 3 vibration supports creativity, communication, joy, and expressive movement, with creative communication as its gift and scattered focus, avoidance, or emotional dramatization as its strain.
Your 2027 numbers

For a birthday on January 21 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 21st reduces to 3, and 1 + 3 + 11 = 15, which reduces to 6, so 2027 is your Personal Year 6.
A Personal Year 6 is read as a year of love and duty, of home, family and the people who rely on you. In 2027, a Universal Year 11, the tradition reads that care as reaching out to heal and to serve a community.
Personal Months of 2027, a Personal Year 6: Jan 7 Feb 8 Mar 9 Apr 1 May 11 Jun 3 Jul 4 Aug 5 Sep 6 Oct 7 Nov 8 Dec 9
In 2027 January 21 falls on a Thursday, the day the old reckoning gives to Jupiter, and is a Personal Day 1 (7 + 21 = 28, then 1) in a Personal Month 7 (6 + 1 = 7), while May 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 21?
Usually Aquarius; in some years the Sun is still in Capricorn for part of this date, so check your birth year and time. In 7 of the 91 years from 1940 to 2030 the Sun crossed from Capricorn into Aquarius during January 21 counted in UTC, so your birth year and time decide which sign was yours.
Is January 21 a cusp birthday?
Yes. In 7 of the 91 years from 1940 to 2030, most recently 1964, the Sun moved from Capricorn into Aquarius during January 21 (UTC), and which side of the change a birth fell on depends on its year and its minute, converted to UTC.
Who was born on January 21?
Among the best known people born on January 21 are Grigori Rasputin (1869–1916), IShowSpeed (born 2005) and Paul Allen (1953–2018), with Plácido Domingo, Christian Dior and Geena Davis and six more named on this page.
What is the birthday number for January 21?
3. Born on the 21st, 2 + 1 = 3, so your birthday number is 3: a 3 vibration supports creativity, communication, joy, and expressive movement, with creative communication as its gift and scattered focus, avoidance, or emotional dramatization as its strain.
What is the 2027 Personal Year for a January 21 birthday?
6. For a birthday on January 21 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 21st reduces to 3, and 1 + 3 + 11 = 15, which reduces to 6, so 2027 is your Personal Year 6.
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