When Is The 1st Day Of Spring 2025 Uk. 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. It is also the point in the calendar where the day length is more or less equal to the.
Andrew’s day (monday december 1st) christmas day (thursday december 25th). This date marks the spring equinox in the northern hemisphere.