How Many Days Until First Day of Fall 2027?
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First Day of Fall 2027 falls on Thursday, September 23, 2027.
📅 – weeks
💼 – weekdays
🛌 – weekend days
🗓️ – months (approx)
Quick facts
| Exact moment (UTC) | September 23, 2027 · 05:56 |
|---|---|
| Event | September Equinox |
| Hemisphere note | Seasons flip in the Southern Hemisphere |
About First Day of Fall 2027
The september equinox of 2027 falls on September 23, 2027 at 05:56 UTC — the astronomical start of fall in the Northern Hemisphere (spring below the equator).
Astronomically, this is the Sun crosses the equator heading south — spring in the Southern Hemisphere. It is also the day the tide of daylight turns: after the September solstice the change is barely minutes per week, then accelerates — the reason the weeks after a solstice feel darker (or lighter) faster than the solstice day itself.