Spring 2025 Date Uk Time. Spring equinox 2025 (beginning of astronomical spring) on the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic. Vernal / spring equinox 2025 the spring or vernal equinox marks the astronomical first day of spring.
Here’s everything you need to know about british summer time. It is also the point in the calendar where the day length is more or less.