First Day Of Spring 2024 Ontario. The first day of spring is an equinox because the length of the day and the day are almost entirely equal and equinox comes from the latin words for equal night. This year, we will welcome the.

It is also the point in the calendar where the day length is more or less equal to the. The first day of spring is an equinox because the length of the day and the day are almost entirely equal and equinox comes from the latin words for equal night.