Days Until Autumn Equinox 2026

Countdown to Autumn Equinox on Wednesday 23 September 2026.

178

DAYS

7

HOURS

20

MINUTES

53

SECONDS

Autumn Equinox 2026 Date Information

  • Date: 23 September 2026
  • Day of Week: Wednesday
  • Regional Rule (United States): Autumn equinox reference date in the Northern Hemisphere (23 September)
  • ISO Format: 2026-09-23
  • UK Format: 23/09/2026
  • US Format: 09/23/2026
  • Week of Year: 39
  • Day of Year: 266

Upcoming Autumn Equinox Dates

  • 2026: Wednesday, 23 September
  • 2027: Thursday, 23 September
  • 2028: Saturday, 23 September
  • 2029: Sunday, 23 September
  • 2030: Monday, 23 September

Time Remaining Breakdown

  • Total Days Remaining: 178
  • Total Weeks Remaining: 25
  • Total Hours Remaining: 4,279
  • Total Minutes Remaining: 256,760
  • Total Seconds Remaining: 15,405,653
  • Business Days Remaining: 128
  • Weekend Days Remaining: 51

How this countdown is calculated

This countdown calculates the exact difference between the current UTC timestamp and the event timestamp. For this page, the event timestamp is 00:00 on 23 September 2026, the start of the listed event date. Once the event has passed, it automatically rolls forward to the next valid year. For United States this page uses: Autumn equinox reference date in the Northern Hemisphere (23 September).

Other Popular Countdowns

About Autumn Equinox

Autumn Equinox in 2026 falls on Wednesday, 23 September 2026.

Autumn Equinox is observed in many places.

This date is calculated each year using the rule: Autumn equinox reference date in the Northern Hemisphere (23 September).

Planning for Autumn Equinox

  • Check local opening hours and closures in the week before Autumn Equinox.
  • Book travel and major reservations early around peak demand dates.
  • Set reminders for any deadlines that happen shortly before the event.

Frequently Asked Questions

How many days until Autumn Equinox?

The live counter above shows the exact remaining days, hours, minutes, and seconds until Autumn Equinox.

When is Autumn Equinox in 2026?

Autumn Equinox is on Wednesday, 23 September 2026.

Does the date of Autumn Equinox change every year?

Yes. This page calculates it each year using the rule: Autumn equinox reference date in the Northern Hemisphere (23 September).

How many weeks until Autumn Equinox?

The time breakdown section includes weeks remaining, along with total days and hours.