Spring Equinox 2025 Date Usa. United states equinox and solstice dates an equinox is one of two days in the year when the sun crosses the equator and day and night become equal in length. Spring equinox 2025, 2026 spring vernal equinox.
For those of us in the northern hemisphere, this is marked by the arrival of the spring equinox. The spring equinox, also known as the vernal equinox, is the moment when day and night are equal in length, marking the beginning of spring in the northern hemisphere and.