Birthdays · January

January 10 birthdayZodiac sign, famous birthdays, personality and your 2027 numbers

The short answer

January 10 is a Capricorn birthday in the second decan of Capricorn with birthday number 1 and a Personal Year 4 in 2027; Husayn ibn Ali (626), Donald Knuth (1938) and Robert Woodrow Wilson (1936) were born on January 10 too.

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January 10 zodiac sign: Capricorn

Sun sign: Capricorn
Sun at noon UTC: 19.1° to 20.5° Capricorn
Decan: Second of Capricorn, 10° to 20°
Element and mode: Earth, cardinal
Ruling planet: Saturn

In every one of the 91 years from 1940 to 2030 the Sun stood in Capricorn for the whole of January 10, in every time zone on Earth, between 19.1° and 20.5° of the sign at noon UTC, so a January 10 birthday is a Capricorn birthday whatever the year or the hour.

At noon UTC on January 10 the Sun is in the second decan of Capricorn in 61 of those years and in the third in 30, so the decan, like the sign at a cusp, turns on the year. The second decan of Capricorn is a face that belongs to Mars in the Chaldean order and is read through Taurus, ruled by Venus, by triplicity, and in most years the decan runs from January 1 to January 10, and January 10 is its tenth day.

In most years January 10 is the 20th day of the Sun’s season in Capricorn, which runs from December 22 to January 19 counted at noon UTC, with nine days of it still to come. January 10 is the 10th day of every year, with 355 days of the year still to come, or 356 in a leap year.

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Famous January 10 birthdays

The earliest born of the twelve is Husayn ibn Ali, in 626, and the most recent Mason Mount, in 1999; two of them were born after 1949.

Born since 1950

Hrithik Roshan (born 1974), Indian actor
Mason Mount (born 1999), English association football player

Born from 1900 to 1949

Donald Knuth (born 1938), American computer scientist and mathematician
Robert Woodrow Wilson (born 1936), American astronomer
Rod Stewart (born 1945), English singer and songwriter
George Foreman (1949–2025), American professional boxer
Sune Bergström (1916–2004), Swedish biochemist

Born in the 1800s

Aleksey Nikolayevich Tolstoy (1883–1945), Russian-Soviet writer
Manuel Azaña (1880–1940), prime minister of Spain, president of Spain
John Dalberg-Acton, 1st Baron Acton (1834–1902), British politician and historian

Born before 1800

Husayn ibn Ali (626–680), grandson of Muhammad and the 3rd Shia Imam
Michel Ney (1769–1815)

Birthdays from Wikidata, checked against Wikipedia’s “On this day” births: the twelve best known of the 62 people the Almanac’s table keeps for January 10, by how many Wikipedia editions cover them, with dates before the calendar reform as the sources give them.

January 10 birthday personality

Mars, exalted in Capricorn, takes its middle decan in the Chaldean scheme while Taurus lends Venus’s steadiness, so tradition reads drive with stamina here, the climber who paces the mountain. Its caution is work that crowds out the people it was meant for.

The 10th adds 1 and 0 to make 1 again, and numerologists read the zero as an amplifier: the 1’s initiative with more room around it. It is read as a birthday for starting over well. With earth, the 1 is read as a quiet pioneer: the first to try a better way of doing an ordinary thing, and the last to boast of it.

A question to carry from January 10: what would your discipline begin today if no one needed to approve it first?

The Sun in Capricorn and the number 1 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 1

Born on the 10th, 1 + 0 = 1, so your birthday number is 1: a 1 vibration supports initiative, courage, leadership, and clear beginnings, with initiative and self-direction as its gift and impatience, isolation, or ego pressure as its strain.

Your 2027 numbers

Pythagoras with a small lyre, pointing to a triangle of ten pebbles in his palm, an engraving — Pythagoras, the philosopher of number

For a birthday on January 10 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 10th reduces to 1, and 1 + 1 + 11 = 13, which reduces to 4, so 2027 is your Personal Year 4. On the way it passes 13, a karmic debt number, read in a year as a lesson to work through rather than as bad luck.

Numerology reads a Personal Year 4 as the working year of the cycle, for order, health, budgets and the building of skills. In a Universal Year 11 it is read as the year that turns last year’s ideas into something that stands.

Personal Months of 2027, a Personal Year 4: Jan 5 Feb 6 Mar 7 Apr 8 May 9 Jun 1 Jul 11 Aug 3 Sep 4 Oct 5 Nov 6 Dec 7

In 2027 January 10 falls on a Sunday, the day the old reckoning gives to the Sun, and is a Personal Day 6 (5 + 10 = 15, then 6) in a Personal Month 5 (4 + 1 = 5), while July 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 10?

Capricorn: from 1940 to 2030 the Sun stayed in Capricorn for the whole of January 10 in every year and every time zone, 19.1° to 20.5° into the sign at noon UTC, so no birth year or birth time changes it.

Is January 10 a cusp birthday?

No: the Sun stays in Capricorn all day on January 10 in every year from 1940 to 2030, wherever on Earth the birth takes place, and the nearest cusp birthday is January 19, nine days later.

Who was born on January 10?

Among the best known people born on January 10 are Husayn ibn Ali (626–680), Donald Knuth (born 1938) and Robert Woodrow Wilson (born 1936), with Aleksey Nikolayevich Tolstoy, Rod Stewart and Hrithik Roshan and six more named on this page.

What is the birthday number for January 10?

1. Born on the 10th, 1 + 0 = 1, so your birthday number is 1: a 1 vibration supports initiative, courage, leadership, and clear beginnings, with initiative and self-direction as its gift and impatience, isolation, or ego pressure as its strain.

What is the 2027 Personal Year for a January 10 birthday?

4. For a birthday on January 10 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 10th reduces to 1, and 1 + 1 + 11 = 13, which reduces to 4, so 2027 is your Personal Year 4. On the way it passes 13, a karmic debt number, read in a year as a lesson to work through rather than as bad luck.