First Day Of Spring 2024 Canada. In 2024, the official first day of spring is tuesday, march 19. Spring equinox 2024 (beginning of astronomical spring) on the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic.

Years ago i came up with a new definition for the first day of spring: Spring equinox 2024 (beginning of astronomical spring) on the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic.