Every zodiac sign has three decans, or three subdivisions. You can be a First Decan, Second Decan or Third Decan Aries, for example.
The Sun falling into the first 0-9 degrees of any sign is the First Decan. The Sun falling into the second lot of 10-19 degrees is the Second Decan. The Sun falling into the final 20-29 degrees of any sign, is the Third Decan.
So, there are three types of Aries, three types of Taurus and so on.
If you were born on the first day or last day of a decan, check the degree of your Sun Sign to find out if you have your Sun at 0-9, 10-19 or 20-29 degrees of the sign. That’s the big deciding factor.
So, for example, if you were born on April 21, the first day of the Taurus First Decan, you would use the calculator on this page to make sure your Sun really is 0 Taurus and thus you really are a Taurus First Decan person.
If you don’t know your birth time then you may be the decan before, or after. One decan will usually ring true, far more than the other.
For the vast majority of people though, this general guide to decans is true and accurate. You can just use your date of birth. Simple!
This kind of astrology comes from Ancient Egypt and is uncannily accurate in describing character.
The 36 Decans of the 12 zodiac signs also line up with the Smith-Waite Tarot, the cards of which were kindly licensed to me by U.S. Games Systems and my friend Lynda Hill’s Sabian Symbols.
These two great oracles date from 1909 and 1925 respectively.
You can find out more about the decans in Your Birthday (Hachette) the Top 10 US Amazon New Age Horoscope bestseller.
In the book, I use your decan sign to predict your future and the future of those people in your life.
Aries First Decan: March 21 to March 30
Aries Second Decan: March 31 to April 9
Aries Third Decan: April 10 to April 20
Taurus First Decan: April 21 to 30
Taurus Second Decan: May 1 to May 10
Taurus Third Decan: May 11 to May 20
Gemini First Decan: May 21 to May 31
Gemini Second Decan: June 1 to June 10
Gemini Third Decan: June 11 to June 21
Cancer First Decan: June 22 to July 1
Cancer Second Decan: July 2 to July 11
Cancer Third Decan: July 12 to July 22
Leo First Decan: July 23 to August 22
Leo Second Decan: August 2 to August 12
Leo Third Decan: August 13 to August 22
Virgo First Decan: August 23 to September 3
Virgo Second Decan: September 4 to September 13
Virgo Third Decan: September 14 to September 22
Libra First Decan: September 23 to October 2
Libra Second Decan: October 3 to October 13
Libra Third Decan: October 14 to October 22
Scorpio First Decan: October 23 to November 2
Scorpio Second Decan: November 3 to November 12
Scorpio Third Decan: November 13 to November 22
Sagittarius First Decan: November 23 to December 2
Sagittarius Second Decan: December 3 to December 12
Sagittarius Third Decan: December 13 to December 21
Capricorn First Decan: December 22 to January 20
Capricorn Second Decan: January 1 to January 10
Capricorn Third Decan: January 11 to January 20
Aquarius First Decan: January 21 to January 30
Aquarius Second Decan: January 31 to February 9
Aquarius Third Decan: February 10 to February 18
Pisces First Decan: February 19 to 29
Pisces Second Decan: March 1 to 10
Pisces Third Decan: March 10 to 20
Famous Aries First Decan: Aretha Franklin.
Famous Aries Second Decan: Ravi Shankar, April 7
Famous Aries Third Decan: Claire Foy, April 16
Famous Taurus First Decan: Jean Paul Gaultier, April 24
Famous Taurus Second Decan: Audrey Hepburn, May 4
Famous Taurus Third Decan: David Byrne, May 14.
Famous Gemini First Decan: Morrissey, May 22
Famous Gemini Second Decan: Johnny Depp, June 9
Famous Gemini Third Decan: Venus Williams, June 17
Famous Cancer First Decan: Ricky Gervais, June 25
Famous Cancer Second Decan: His Holiness the Dalai Lama, July 6
Famous Cancer Third Decan: Brian May, July 19
Famous Leo First Decan: J.K. Rowling, July 31
Famous Leo Second Decan: Barack Obama, August 4
Famous Leo Third Decan: Princess Anne, August 15
Famous Virgo First Decan: Elvis Costello, August 25
Famous Virgo Second Decan: Chrissie Hynde, September 7
Famous Virgo Third Decan: Liam Gallagher, born September 21
Famous Scorpio First Decan: Toni Collette, November 1
Famous Scorpio Second Decan: Alexa Chung, November 5
Famous Scorpio Third Decan: Indira Gandhi, November 19
Famous Sagittarius First Decan: Tina Turner, November 26
Famous Sagittarius Second Decan: Kenneth Branagh, December 10
Famous Sagittarius Third Decan: Taylor Swift, December 13
Famous Capricorn First Decan: Denzel Washington, December 28
Famous Capricorn Second Decan: Alex Turner, January 6
Famous Capricorn Third Decan: Michelle Obama, January 17
Famous First Decan Aquarius: Germaine Greer, January 29
Famous Second Decan Aquarius: Harry Styles, February 1
Famous Third Decan Aquarius: Yoko Ono, February 18
Famous First Decan Pisces: Kurt Cobain, February 20
Famous Second Decan Pisces: Matt Lucas, March 5
Famous Third Decan Pisces: Stormy Daniels, March 17
Famous First Decan Libra: Sting, October 2
Famous Second Decan Libra: Kate Winslet, October 5
Famous Third Decan Libra: Julian Cope, October 21
All images: Shutterstock/Creative Commons/iStock/Rawpixel/Dreamstime.