September equinox (Northern Hemisphere fall equinox)
The U.S. Naval Observatory gives the September equinox at 00:05 UT on 23 September 2026; seasonal naming depends on hemisphere.
Date and recurrence
23 September 2026 at 00:05 UT
The stored date is verified for a specific edition only. It is not projected into another year without a fresh authoritative source.
Scope and status
The verified scope stored for this record is Astronomical event / Northern Hemisphere seasonal naming. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.
Also known as
Fall Equinox
Topic and context
What this page does not assume
- Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
- Do not treat the title alone as proof of government recognition or public-holiday status.
- Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
- Refresh the target year before publishing a new date when the record is not safely portable.
Sources
- U.S. Naval Observatory — Earth seasons 2026Astronomical Authority
- U.S. Naval Observatory — Earth’s seasonsAstronomical Authority
Frequently asked questions
When is September equinox (Northern Hemisphere fall equinox)?
23 September 2026 at 00:05 UT The stored recurrence guidance is: Refresh the authoritative target-year edition/schedule; current stored evidence: 23 September 2026 at 00:05 UT.
Does September equinox (Northern Hemisphere fall equinox) fall on the same date every year?
No. The stored date is edition-specific and must be refreshed for another year.
Is September equinox (Northern Hemisphere fall equinox) an official public holiday?
The authority record verifies it within this scope: Astronomical event / Northern Hemisphere seasonal naming. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when the supporting authority record explicitly does so.
Who established or recognizes September equinox (Northern Hemisphere fall equinox)?
The stored designation basis is: The U.S. Naval Observatory gives the September equinox at 00:05 UT on 23 September 2026; seasonal naming depends on hemisphere.. Supporting provenance includes U.S. Naval Observatory — Earth seasons 2026. The site does not infer a separate creator or founder unless reviewed evidence establishes one.
Is September equinox (Northern Hemisphere fall equinox) international or country-specific?
No single country is assigned to this record in the authority dataset. The source-defined scope is: Astronomical event / Northern Hemisphere seasonal naming. Use that scope rather than assuming worldwide or country-specific status.
How is this page verified?
The factual layer is source-backed and keeps its date rule, scope, provenance and editorial guardrails attached to the authority record. This record was checked on 2026-09-08.
Other observances on September 23
These records also resolve to September 23, 2026 under the current authority data.
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