What Day Is The Autumn Equinox In 2024 India. In different time zones, the date of the equinox may differ. An equinox is an astronomical event that happens twice, once in spring and once in autumn, each year when the tilt of the earth's axis is.
In different time zones, the date of the equinox may differ. The march spring equinox occurs around march 20 or 21 each year.