First Day Of Spring 2024 And Time. Before you try to balance that egg, read on! The northern hemisphere’s spring — or vernal — equinox can land between march 19 and 21, depending on the year.

In 2024, the vernal equinox occurred on march 19, signaling the start of spring in the northern hemisphere (and fall in the southern hemisphere). The seasons are defined as spring (march, april, may), summer (june, july, august), autumn.