When does fall start?

Astronomically, fall starts around the September equinox. This tool uses an approximate equinox or solstice instant for the Northern Hemisphere.

Why not use the first day of the month?

Meteorological seasons use calendar months, but English countdown SERPs commonly target equinoxes and solstices. This page follows that search intent.

Does the exact date ever change?

Yes. The precise equinox or solstice moment shifts by year and time zone. The live countdown uses an approximate astronomical instant and displays it in your local time zone.

Are weekdays exact business days?

No. Weekdays are a Monday-Friday estimate and do not include federal holidays, school calendars or local closures.

Days Until Fall

Live countdown to fall for a Northern Hemisphere audience, using an astronomical fall equinox calendar-day approximation.

Countdown to the Northern Hemisphere fall equinox - September 23, 2026, 12:13 AM

112

days

hours

minutes

seconds

From Summer to Fall0.0% of the wait complete

Weeks

Approx. months

Weekdays

Season length

89 days

Exact astronomical equinox and solstice moments vary by year and time zone. This tool uses an approximate astronomical instant for the Northern Hemisphere and displays it in your local time zone.

Hours: 2,699

Minutes: 161,988

Seconds: 9,719,336

Now: June 2, 2026, 12:24:46

Astronomical season starts used here:Spring - March equinoxSummer - June solsticeFall - September equinoxWinter - December solstice

How many days until fall?

This countdown answers the English search intent directly: how many days, hours, minutes and seconds are left until fall starts. For a US and broader English-language audience, season countdowns commonly point to the astronomical season boundary rather than the first day of a calendar month.

T_{l e f t} = T_{se a so n} - T_{n o w}

The target is the next Northern Hemisphere fall equinox, approximated as an astronomical instant and displayed in the user's local time zone.

Astronomical fall countdown

Target event: the fall equinox.
Season boundary: the September equinox.
Exact astronomical equinox and solstice moments vary by year and time zone.
Weekdays are counted as Monday through Friday only and do not subtract holidays.

Northern Hemisphere intent

This page is localized for the common English-language Northern Hemisphere query. Southern Hemisphere seasons start at opposite times of year.

Frequently Asked Questions

Sources and References

Calculations are based on the listed reference sources. Links open in a new tab.

Updated: June 2, 2026

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