When Is The First Day Of Fall 2024 Canada. While the days will continue to get shorter once fall begins, rest assured we won’t officially ‘fall back’ until early november, when daylight saving time ends. On the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial.

Montreal is ushering in the fall. Fall begins with the autumnal equinox, sunday, september 22, 2024, 8:44.