Spring Equinox 2025 Time Zone. Day and night then have the same duration. In different time zones, the date of the equinox may differ by a day, so it is important to indicate your exact location.
So many parts of the world will see the equinox arrive on march 19. 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.