1st Day Of Spring 2024. In the southern hemisphere, spring starts on september 22, 2024, at 12:44 gmt (07:44 a.m. In the northern hemisphere, the astronomical start of spring is also known as the spring equinox.

Spring will last from march 19 until. 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.