Spring Equinox 2024 Nz 2024. The spring equinox (as well as autumnal equinox) is the moment when neither of the earth’s hemispheres is inclined towards or away from the sun. The vernal equinox marks the start of the spring season for the northern hemisphere.

It’s all thanks to our leap year system that we don’t have to work too hard to remember the date of the spring equinox; On this date, the day is equal.