When Is The Spring 2025. The schedule of classes for summer 2025, fall 2025, and spring 2026 is available. First day of spring in 2025 is on thursday, the 20th of march (20/3/2025).
Spring equinox 2025 (beginning of astronomical spring) on the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic. When in 2025 is spring?