Days Between First Day of Fall (Autumn Equinox) and First Day of Winter (Winter Solstice)
In 2026, First Day of Fall (Autumn Equinox) is on Tuesday, 2026-09-22 and First Day of Winter (Winter Solstice) is on Monday, 2026-12-21.
2026 Duration Breakdown & Details
| Measurement | Value (2026) |
|---|---|
| Starting Holiday (First Day of Fall (Autumn Equinox)) | Tuesday, 2026-09-22 |
| Ending Holiday (First Day of Winter (Winter Solstice)) | Monday, 2026-12-21 |
| Total Elapsed Days | 90 calendar days |
| Working Business Days | 64 days (Mon–Fri) |
| Weekend Days | 26 days (Sat–Sun) |
| Total Approximate Hours | 2,160 hours |
| Share of a Standard Year | 24.7% of 365 days |
5-Year Schedule Comparison (2024–2028)
See how the day count between First Day of Fall (Autumn Equinox) and First Day of Winter (Winter Solstice) shifts from year to year due to calendar shifts and leap days:
| Year | First Day of Fall (Autumn Equinox) | First Day of Winter (Winter Solstice) | Total Days | Business Days |
|---|---|---|---|---|
| 2024 | 2024-09-22 (Sun) | 2024-12-21 (Sat) | 90 days | 65 days |
| 2025 | 2025-09-22 (Mon) | 2025-12-21 (Sun) | 90 days | 65 days |
| 2026 2026 | 2026-09-22 (Tue) | 2026-12-21 (Mon) | 90 days | 64 days |
| 2027 | 2027-09-23 (Thu) | 2027-12-22 (Wed) | 90 days | 64 days |
| 2028 | 2028-09-22 (Fri) | 2028-12-21 (Thu) | 90 days | 64 days |
Why Track the Days Between First Day of Fall (Autumn Equinox) and First Day of Winter (Winter Solstice)?
From the autumnal equinox (September 22/23) to the winter solstice (December 21/22) is the exact astronomical length of Autumn / Fall (approx. 89.85 days).
First Day of Fall (Autumn Equinox)
SeasonalThe Autumnal Equinox marks the official astronomical beginning of fall in the Northern Hemisphere. On this day, the sun crosses the celestial equator going south, producing nearly equal amounts of day and night across the globe.
First Day of Winter (Winter Solstice)
SeasonalThe Winter Solstice marks the official astronomical start of winter in the Northern Hemisphere and the shortest day (fewest daylight hours) of the year. It occurs when either of Earth's poles reaches its maximum tilt away from the sun.
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Frequently Asked Questions
How many days are between First Day of Fall (Autumn Equinox) and First Day of Winter (Winter Solstice) in 2026? ▼
In 2026, there are exactly 90 calendar days (12 weeks and 6 days) between First Day of Fall (Autumn Equinox) (Tuesday, 2026-09-22) and First Day of Winter (Winter Solstice) (Monday, 2026-12-21).
How many working business days are between First Day of Fall (Autumn Equinox) and First Day of Winter (Winter Solstice)? ▼
In 2026, there are 64 working business days (Monday through Friday) and 26 weekend days between First Day of Fall (Autumn Equinox) and First Day of Winter (Winter Solstice).
Why does the number of days between First Day of Fall (Autumn Equinox) and First Day of Winter (Winter Solstice) vary? ▼
Holidays defined by floating weekday rules (such as 'the fourth Thursday of November' for Thanksgiving or lunar calculations for Easter) change calendar dates every year. As a result, the interval between First Day of Fall (Autumn Equinox) and First Day of Winter (Winter Solstice) shifts by several days across calendar cycles.
How can I calculate days between custom dates? ▼
You can use our free online Date Calculator at countdaysbetween.com to compute exact calendar days, working days, and time breakdowns between any two custom calendar dates.