First Day Of Spring 2025. There are four seasons in a year: Spring (or also springtime), summer, autumn (also known as fall), and winter.

By the meteorological calendar, spring will always start on 1 march; 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.