Days Until First Day of Autumn 2026

Countdown to First Day of Autumn on Wednesday 23 September 2026.

178

DAYS

7

HOURS

18

MINUTES

27

SECONDS

First Day of Autumn 2026 Date Information

  • Date: 23 September 2026
  • Day of Week: Wednesday
  • Regional Rule (United States): Astronomical start of autumn/fall 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 First Day of Autumn 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: 256,758
  • Total Seconds Remaining: 15,405,507
  • 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: Astronomical start of autumn/fall in the Northern Hemisphere (23 September).

Other Popular Countdowns

About First Day of Autumn

First Day of Autumn in 2026 falls on Wednesday, 23 September 2026.

First Day of Autumn is observed in many places.

This date is calculated each year using the rule: Astronomical start of autumn/fall in the Northern Hemisphere (23 September).

Planning for First Day of Autumn

  • Check local opening hours and closures in the week before First Day of Autumn.
  • 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 First Day of Autumn?

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

When is First Day of Autumn in 2026?

First Day of Autumn is on Wednesday, 23 September 2026.

Does the date of First Day of Autumn change every year?

Yes. This page calculates it each year using the rule: Astronomical start of autumn/fall in the Northern Hemisphere (23 September).

How many weeks until First Day of Autumn?

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