Equinox 2024 Date Australia Map. There is an equinox if daytime hours equals to night time. Spring equinox 2024 (beginning of astronomical spring) on the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic.
It is also the point in the calendar where the day length is more or less equal to the length of the night. In the southern hemisphere, this marks the tipping point.