Aries the Ram (March 21 to April 20) is known as the primary sign of the Zodiac. We consider the start of the yr as January, as a result of that’s the beginning of the new calendar year. But that is the Zodiac 12 months, bear in mind, and is ruled by matters extra celestial than mundane! March 21 is the Spring equinox, which signifies the beginning of the Zodiac year. And when you concentrate on it, this makes sense. Spring is the time of renewal and rebirth.