Spring Equinox Uk 2024. But did you know there are actually three main definitions for the season coming from astronomy, meteorology and phenology? The spring equinox marks the beginning of spring and from this day forward the day is longer than the night.
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. An equinox is the moment when the centre of the sunโs disc is directly above the earths equator.