Autumnal Equinox

Wednesday, September 22 at 8:30 a.m. (CDT) is the official start of Fall – also called the autumnal equinox or the September equinox. On this day, fall begins in the Northern Hemisphere and spring begins in the Southern Hemisphere. Report your daylight length and "Signs of Fall" to Journey North.

What to Report

• Report your daylight length for the equinox, September 22, 2021.
• Report your "Signs of Fall" to Journey North.

How to Report your Daylight Length (Photoperiod)

Step 1: Look up your sunrise/sunset for September 22.

Step 2: Calculate the length of time between sunrise and sunset. 

Step 3: Report your daylight length for September 22.

Step 4: Explore the Daylight map and compare your part of the world with other locations as the Earth revolves around the Sun.

Step 5: Watch the Signs of Fall map and share and compare seasonal observations with people around the globe.