First Day Of Spring 2024 Usa Time. The first day of spring in 2025 is march 20, 2024, at 5:02 a.m. It marks the first day of spring.
In 2024, the march equinox will occur on tuesday, march 19, at 11:06 p.m. The spring equinox is the moment when the sun is directly above the equator and both hemispheres receive an almost equal amount of sunlight.