Table of Dates

There are certain rules defining the onset of the Gregorian calendars.

 

Ptolemaic signs belonging to the tropical zodiac

 

Hindu system signs which is considered to be sidereal

 

Constellation signs are identified according to the laws passed by the International Union in 1935.

 

There are many theories regarding the position of Aries and the vernal equinox which would go a long way in enhancing the understanding of the zodiac signs. Gregorian times are quite dicey because they tend to shift over a period of time. As per the feedback of the researchers, Chinese calendar is in synchronizations with the English calendars and their position change with the UTC timings in an impeccable manner.


Sign Constellation
Name Symbol Tropical zodiac
(2011)
Sidereal zodiac
(2011)
Name IAU Boundaries Solar
Stay
Brightest
star

Aries

Aries

21 March

20 April

15 April -
15 May

Aries

19 April

13 May

25 days

Hamal

Taurus

Taurus

21 April

21 May

16 May -
15 June

Taurus

14 May

19 June

37 days

Aldebaran

Gemini

Gemini

22 May

21 June

16 June -
15 July

Gemini

20 June

20 July

31 days

Pollux

Cancer

Cancer

22 June

22 July

16 July
-
15 August

Cancer

21 July

9 August

20 days

Al Tarf

Leo

Leo

23 July

22 August

16 August
-
15 Sept

Leo

10 August

15 Sept

37 days

Regulus

Virgo

Virgo

23 August

23 Sept

16 Sept
-
15 Oct

Virgo

16 Sept

30 Oct

45 days

Spica

Libra

Libra

24 Sept

23 Oct

16 Oct
-
16 Nov

Libra

31 Oct

22 Nov

23 days

Zubene-
schamali

Scorpio

Scorpio

24 Oct

22 Nov

16 Nov
-
15 Dec

Scorpius

23 Nov

29 Nov

7 days

Antares

Ophiuchus

Ophiuchus zodiac.svg

n/a

Ophiuchus

30 Nov

17 Dec

18 days

Rasalhague

Sagittarius

Sagittarius

23 Nov

21 Dec

16 Dec
-
14 Jan

Sagittarius

18 Dec

18 Jan

32 days

Kaus Australis

Capricorn

Capricornus

22 Dec

20 Jan

15 Jan

14 Feb

Capricornus

19 Jan

15 Feb

28 days

Deneb Algedi

Aquarius

Aquarius

21 Jan

19 Feb

15 Feb
-
14 March

Aquarius

16 Feb

11 March

24 days

Sadalsuud

Pisces

Pisces

20 Feb

20 March

15 March -
14 April

Pisces

12 March

18 April

38 days

Eta Piscium