Days Until First Day of Fall (Autumn Equinox) 2027

First Day of Fall (Autumn Equinox) 2027 falls on Thursday, September 23, 2027.

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Time & Working Days Breakdown

Total Calendar Days 394

All 24-hour periods

Business / Working Days 282

Monday through Friday

Weekend Days 112

Saturdays & Sundays

Metric Value
Target Date 2027-09-23 (Thursday)
Weeks & Days 56 weeks and 2 days
Total Hours approx. 9,456 hours
Percentage of a Year 107.9% of a standard year
Day of the Week

First Day of Fall (Autumn Equinox) Dates: 5-Year Schedule (2024–2028)

Compare the date and day of the week for First Day of Fall (Autumn Equinox) across recent and upcoming calendar years:

Year Date Day of Week Status
2024 2024-09-22 Sunday Countdown →
2025 2025-09-22 Monday Countdown →
2026 2026-09-22 Tuesday Countdown →
2027 Current 2027-09-23 Thursday Viewing
2028 2028-09-22 Friday Countdown →

About First Day of Fall (Autumn Equinox) 2027

The 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.

As the Earth continues its orbit, temperatures cool, foliage transforms into rich gold, red, and amber hues, and harvest festivals begin. Fall traditions include apple picking, pumpkin patches, harvest fairs, and cozy seasonal recipes.

In 2027, the first day of fall arrives on Thursday, September 23. Track the countdown to plan your autumn foliage road trips, outdoor hikes, and seasonal wardrobe transitions.

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Frequently Asked Questions

When is the first day of fall in 2027?

Astronomical autumn begins on Thursday, September 23, 2027.

What causes the leaves to change color in fall?

As daylight decreases and temperatures cool, trees stop producing chlorophyll, unmasking natural carotenoid and anthocyanin pigments (yellows, oranges, and reds).

How does day length change after the autumn equinox?

After the equinox, nights become progressively longer than days until the winter solstice in late December.

Other Major Countdowns in 2027