1st Day Of Fall 2026

1st Day Of Fall 2026. It is also called the autumnal equinox, fall equinox or the beginning of autumn. View the month calendar of may 2026 calendar including week numbers.

The first day of autumn often called fall (september equinox or autumnal equinox) is when the sun shines directly on the celestial equator passing from north to south and the length of day and night are almost the same. Click on the date that interests you to see the lighting map of the earth on that date and time (beginning of the season).