Holiday
Autumnal Equinox Day Countdown 2026
7 days until Autumnal Equinox Day
Wednesday, September 23, 2026
7
days
09
hrs
39
min
52
sec
The astronomy of the season
September Equinox
Wednesday, September 23, 2026 · falls on Autumnal Equinox Day
The equinox — day and night fall into near-perfect balance the world over, and one season quietly gives way to the next.
Common questions
When is Autumnal Equinox Day 2026?
Autumnal Equinox Day 2026 falls on Wednesday, September 23, 2026.
How many days until Autumnal Equinox Day?
There are 7 days until Autumnal Equinox Day 2026.
Autumnal Equinox Day in coming years
| Year | Date | Day |
|---|---|---|
| 2026 | September 23 | Wednesday |
| 2027 | September 23 | Thursday |
| 2028 | September 22 | Friday |
| 2029 | September 23 | Sunday |