Spring Equinox 2025 Uk Calendar. The following table shows the dates together with the exact time in which each of the seasons of the year begin. This is referred to as astronomical spring or.
The first day of spring (march equinox or vernal equinox) is when the sun shines directly on the celestial equator passing from south to north and the length of day and night are almost the same. The starting date for each season changes by a day or so each year.