First Day Of Spring Canada 2024. In 2024, the march equinox will occur on tuesday, march 19, at 11:06 p.m. Years ago i came up with a new definition for the first day of spring:

These dates may be modified as official changes are announced, so please check back regularly for. 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.