September 23 birthdayZodiac sign, famous birthdays, personality and your 2027 numbers
The short answer
September 23 is a cusp birthday, usually Libra; in some years the Sun is still in Virgo for part of this date, so check your birth year and time, with birthday number 5 and a Personal Year 7 in 2027; Augustus (63 BC), Kublai Khan (1215) and Bruce Springsteen (1949) were born on September 23 too.
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September 23 zodiac sign: Virgo or Libra
- Sun sign
- Virgo or Libra, a cusp day
- Sun at noon UTC
- 0.0° to 1.0° Libra, or 29.6° to 30.0° Virgo
- Decan
- First of Libra, 0° to 10°
- Element and mode
- Air, cardinal
- Ruling planet
- Venus
September 23 is a cusp birthday, usually Libra; in some years the Sun is still in Virgo for part of this date, so check your birth year and time: in 65 of the 91 years from 1940 to 2030 the Sun crossed from Virgo into Libra during September 23 counted in UTC, most recently in 2027, and at noon UTC it stood in Libra in 71 of the years and in Virgo in 20. For a birth on September 23 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 September 23 the Sun is in the first decan of Libra in 71 of those years and in the third decan of Virgo in 20, so the decan, like the sign at a cusp, turns on the year. The first decan of Libra is a face that belongs to the Moon in the Chaldean order and is read through Libra, ruled by Venus, by triplicity, and in most years the decan runs from September 23 to October 2, and September 23 is its first day.
In most years September 23 is the 1st day of the Sun’s season in Libra, which runs from September 23 to October 23 counted at noon UTC, with 30 days of it still to come. September 23 is the 266th day of a common year and the 267th of a leap year, with 99 days of the year still to come after it.
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Famous September 23 birthdays
The earliest born of the twelve is Augustus, in 63 BC, and the most recent Juan Martín del Potro, in 1988; one of them was born after 1949.
Born since 1950
- Juan Martín del Potro (born 1988), Argentine tennis player
Born from 1900 to 1949
- Bruce Springsteen (born 1949), American rock singer
- Ray Charles (1930–2004), American singer, pianist and songwriter
- Jaroslav Seifert (1901–1986), Czechoslovak poet, Nobel prize laureate
- Julio Iglesias (born 1943), Spanish singer and lawyer
- John Coltrane (1926–1967), American jazz saxophonist
- Mickey Rooney (1920–2014), American actor
- Romy Schneider (1938–1982), German-French actress
- Clifford Shull (1915–2001), American physicist
Born before 1800
- Augustus (63 BC – AD 14), first emperor of the Roman Empire
- Kublai Khan (1215–1294), founding emperor of the Yuan dynasty
- Ferdinand VI (1713–1759), king of Spain
Birthdays from Wikidata, checked against Wikipedia’s “On this day” births: the twelve best known of the 52 people the Almanac’s table keeps for September 23, by how many Wikipedia editions cover them, with dates before the calendar reform as the sources give them.
September 23 birthday personality
The Moon opens Libra in the Chaldean scheme while Venus keeps it by triplicity, so the scales are read here through feeling first: the instinct to make a room comfortable and a quarrel smaller. The caution in the old reading is peace kept at the price of saying what is true.
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.
Where Virgo gives way to Libra the careful worker meets the diplomat at the September equinox, precision meeting balance. 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 September 23: which routine is your sense of fairness ready to change, and which one is worth keeping?
The Sun in Libra 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 September 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: September, the 9th month, gives 9, the 23rd reduces to 5, and 9 + 5 + 11 = 25, which reduces to 7, so 2027 is your Personal Year 7.
A Personal Year 7 is numerology’s inward year, for study, prayer, rest and taking stock. With 2027 a Universal Year 11, it is read as a year when insight comes readily to anyone who listens for it.
Personal Months of 2027, a Personal Year 7: Jan 8 Feb 9 Mar 1 Apr 11 May 3 Jun 4 Jul 5 Aug 6 Sep 7 Oct 8 Nov 9 Dec 1
In 2027 September 23 falls on a Thursday, the day the old reckoning gives to Jupiter, and is a Personal Day 3 (7 + 23 = 30, then 3) in a Personal Month 7 (7 + 9 = 16, then 7), while April is a master month 11; the Personal Year itself turns on 1 January, not on the birthday.
September birthstone and birth flower
- Birthstone
- Sapphire
- Birth flowers
- Aster, and morning glory as the second flower
September’s sapphire comes from the modern list (the Jewelers of America list of 1912, as since revised), and its aster and morning glory from The Old Farmer’s Almanac.
More birthdays
Common questions
What zodiac sign is September 23?
Usually Libra; in some years the Sun is still in Virgo for part of this date, so check your birth year and time. In 65 of the 91 years from 1940 to 2030 the Sun crossed from Virgo into Libra during September 23 counted in UTC, so your birth year and time decide which sign was yours.
Is September 23 a cusp birthday?
Yes. In 65 of the 91 years from 1940 to 2030, most recently 2027, the Sun moved from Virgo into Libra during September 23 (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 September 23?
Among the best known people born on September 23 are Augustus (63 BC – AD 14), Kublai Khan (1215–1294) and Bruce Springsteen (born 1949), with Ray Charles, Jaroslav Seifert and Julio Iglesias and six more named on this page.
What is the birthday number for September 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 September 23 birthday?
7. For a birthday on September 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: September, the 9th month, gives 9, the 23rd reduces to 5, and 9 + 5 + 11 = 25, which reduces to 7, so 2027 is your Personal Year 7.
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