According to the Tropical system of astrology, the Sun enters the sign of Aries when it reaches the northern vernal equinox, in Sidereal astrology, the sun currently transits the constellation of Aries from 15 April to 15 May (approximately).
The Sun enters the sign of Aries when it reaches the northern vernal equinox astrology, the sun currently transits the constellation of Aries from 15 April to 15 May (approximately). This is in Sidereal. This is according to the Tropical system of astrology.