Autumn is finally here! It sure doesn’t feel like Fall, but September 23rd was the Autumnal Equinox. The amount of night and daylight we experienced in that 24 hour day was 12 hours each, or equal! Every day for the next 3 months will experience a couple minutes less of daylight than the day before it.
Here is a great article with more details: https://www.vox.com/science-and-health/2019/9/20/20874986/fall-equinox-2019-september-23.
Take a look at this video for further explanation!