Discover the Real Horoscope Dates

Find out your real Star Sign and why most magazines get it wrong!

To start, here's a quick lesson on how your Star Sign is actually determined. As you learn in School, the planets in our solar system orbit the Sun, and your Star Sign is where the Earth and Sun are when you are born. It's bit confusing to explain in words, so the following image shows where the Sun and the Inner Planets (Mercury, Venus, Earth, and Mars) were on January 3rd, 1980.

If you look at the picture below, you will see blue lines radiating from Earth, dividing the space around it into 12 equal segments. Each segment is ruled by a Zodiac sign. The yellow circle represents the Sun, and on this date it is in the space designated for Capricorn... so if your birthday was January 3rd, 1989 your Star Sign would be Capricorn. A person's Star Sign is the Zodiac Sign containing the Sun on the day they were born.

Location of Planets on 3 January 1980

To understand how the Horoscope Dates change, let's fast forward five months to June 3, 1980. In the following picture, all the planets have continued on their orbit around the Sun, and now, because Earth has moved, the 12 Zodiac segements (the blue lines) have moved as well - and the Sun is in the segment ruled by Gemini. If you were born on this day, your Star Sign would be Gemini.

Location of Planets on 3 June 1980

When I was learning Astrology, this illustration really helped me understand what a Star Sign means.

Now, there's one important caveat. If you were born when the Sun was in the middle of a Zodiac's sector, where and when you are born doesn't really matter in terms of your Star Sign. But if your Birthday is close to the day the Sun moves from one sign to another, it does...

What is a cusp, and why does it matter?

The days around the moment the Sun moves from one Zodiac sign to another are called the cusp, and people born at the cusp of two Star Signs generally have attributes from both signs. This is where most Magazines and News Papers get Horoscopes wrong. If you are born near the cusp, to get your exact Star sign you need to plug in the time and location of your birth into an Ephemeris. This is because time zones, your location and many other factors will determine what sign the Sun was actually in.

But remember, like I mentioned before (and this belief is not just my opinion, it's shared by many published astrologers dating back hundreds of years), if you are born on the day the Sun moves from one sign to another, you should consider yourself of two Star signs. My Star Sign calculator below will let you know if you are at a cusp, or if you have one whole sign.


On the rest of this page I'll show some of the discrepancies in various Horoscope Date tables, and provide evidence to support my hypothesis that the only way to really know what star sign you are is to calculate it. If you just want to know what Star Sign you are, you might want to just use the calculator above... but if you're curious to learn more, keep reading!

The following image is my favorite example that shows the sky split into 30 degree arcs, radiating from earth. It's from a book by Comte C. de Saint-Germain published in 1901 called Practical Astrology: A Simple Method of Casting Horoscopes. It shows an ancient tool, with the planets in each Zodiac sign radiating from Earth in 30 degree arcs. Each 30 degree arc is split into 3 Decans (or Decanates). These are same degrees used in my Calculator (although I have rotated mine by 180 degrees).

Degres of the Zodiac

Instead of using an antique tool to determine where the planets are relative to Earth, I use the VSOP87 planetary theory by Bretagnon and Francou. It's too complicated to get into here, but if you would like to learn more this Wikipedia page is a good place to start.

Of course, we now know that the planets do not orbit Earth, but this is reason why the different Zodiac signs are Geocentric (based on Earth's position).

Inconsistencies with the Horoscope Dates

Now that we know how one's sign is calculated, the impossibility of a perfectly accurate table of dates becomes clear. If someone was born at 5:00 AM on March 21st in New Zealand, they would be born at 12:00 Noon on March 20th in New York. Are they Aries or Pisces? To know exactly, you have to use a Star Sign calculator. In the following charts I've summarized data from 8 different publications, each referenced below. You should notice some discrepancies in the dates:

Aries Horoscope Dates

Author Dates
Leo1 March 21 - April 19
Webber2 March 21 - April 19
Raphael3 March 21 - April 21
Jensen4 March 21 - April 20
Saint-Germain5 March 21 - April 19
Leroy6 March 21 - April 18
Seva7 March 21 - April 19

Taurus Horoscope Dates

Author Dates
Leo1 April 20 - May 20
Webber2 April 19 - May 20
Raphael3 April 21 - May 22
Jensen4 April 20 - May 21
Saint-Germain5 April 20 - May 19
Leroy6 April 19 - May 19
Seva7 April 19 - May 20

Gemini Horoscope Dates

Author Dates
Leo1 May 21 - June 21
Webber2 May 20 - June 21
Raphael3 May 22 - June 22
Jensen4 May 21 - June 22
Saint-Germain5 May 20 - June 18
Leroy6 May 20 - June 20
Seva7 May 20 - June 21

Cancer Horoscope Dates

Author Dates
Leo1 June 21 - July 22
Webber2 June 21 - July 22
Raphael3 June 22 - July 24
Jensen4 June 22 - July 23
Saint-Germain5 June 19 - July 23
Leroy6 June 21 - July 21
Seva7 June 21 - July 22

Leo Horoscope Dates

Author Dates
Leo1 July 22 - August 23
Webber2 July 22 - August 22
Raphael3 July 24 - August 24
Jensen4 July 23 - August 23
Saint-Germain5 July 24 - August 22
Leroy6 July 22 - August 21
Seva7 July 22 - August 22

Virgo Horoscope Dates

Author Dates
Leo1 August 23 - September 23
Webber2 August 22 - September 23
Raphael3 August 24 - September 24
Jensen4 August 23 - September 23
Saint-Germain5 August 23 - September 21
Leroy6 August 22 - September 22
Seva7 August 22 - September 23

Libra Horoscope Dates

Author Dates
Leo1 September 23 - October 23
Webber2 September 23 - October 23
Raphael3 September 24 - October 24
Jensen4 September 23 - October 23
Saint-Germain5 September 22 - October 21
Leroy6 September 23 - October 22
Seva7 September 23 - October 23

Scorpio Horoscope Dates

Author Dates
Leo1 October 23 - November 22
Webber2 October 23 - November 22
Raphael3 October 24 - November 23
Jensen4 October 23 - November 22
Saint-Germain5 October 22 - November 20
Leroy6 October 23 - November 21
Seva7 October 23 - November 22

Sagittarius Horoscope Dates

Author Dates
Leo1 November 20 - December 21
Webber2 November 22 - December 21
Raphael3 November 23 - December 23
Jensen4 November 22 - December 22
Saint-Germain5 November 21 - December 20
Leroy6 November 22 - December 20
Seva7 November 22 - December 21

Capricorn Horoscope Dates

Author Dates
Leo1 December 21 - January 20
Webber2 December 21 - January 20
Raphael3 December 23 - January 21
Jensen4 December 22 - January 20
Saint-Germain5 December 21 - January 19
Leroy6 December 21 - January 19
Seva7 December 21 - January 20

Aquariuss Horoscope Dates

Author Dates
Leo1 January 20 - February 19
Webber2 January 20 - February 19
Raphael3 January 21 - February 19
Jensen4 January 20 - February 19
Saint-Germain5 January 20 - February 18
Leroy6 January 20 - February 18
Seva7 January 20 - February 19

Pisces Horoscope Dates

Author Dates
Leo1 February 19 - March 21
Webber2 February 19 - March 21
Raphael3 February 19 - March 21
Jensen4 February 19 - March 21
Saint-Germain5 February 19 - March 20
Leroy6 February 19 - March 20
Seva7 February 19 - March 21


1) Leo, Alan. Astrology for All. London. 1899.

Leo Alan's Horoscope Dates

2) Webber, Carl. Astrology in a Nutshell. Boston, Mass. 1902.

Carl Webber's Horoscope Dates

3) Raphael, Albert. Earthology. London & New York. 1901.

Albert Raphael's Horoscope Dates

4) Jensen, Magnus. Everybody's Astrology. Camino, California. 1922.

5) Saint-Germain, Comte. Practical Astrology. Chicago. 1901.

Comte Saint-Germain's Horoscope Dates

6) Leroy, Jean Francis. Socail Science in the Light of the Solar System. San Jose, California. 1913.

Jean Francis Leyroy's Horoscope Dates

7) Seva, Bhakti. The Hindu Book of Astrology. New York. 1902.

Bhakti Seva's Horoscope Dates