When Is The First Day Of Fall 2025. In 2025, there will be 12 instead of the usual 11 federal holidays, although two fall on the same day. Find out the date, how long in days until and count down to till autumn (or fall) 2025 with a countdown clock.

In 2025, the first day of fall will fall on tuesday, september 23nd. Throughout the 21st century, march.