March equinox / astronomical spring begins (Northern Hemisphere)
The U.S. Naval Observatory publishes target-year equinox instants and explains that equinoxes mark the beginning of spring or autumn depending on hemisphere.
Date and recurrence
March equinox; 20 March 2026 at 14:46 UTC
The date is source-dependent or variable. A target-year source is required before assigning it to a calendar.
Scope and status
The verified scope stored for this record is Astronomical season boundary / Northern Hemisphere; opposite seasonal meaning in the Southern Hemisphere. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.
Also known as
Spring Begins, March 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 data serviceAstronomical Government Authority
- U.S. Naval Observatory — 2026 seasons calculationAstronomical Government Authority
Frequently asked questions
When is March equinox / astronomical spring begins (Northern Hemisphere)?
March equinox; 20 March 2026 at 14:46 UTC The stored recurrence guidance is: Resolve the March equinox instant for the target year and timezone; interpret season by hemisphere.
Does March equinox / astronomical spring begins (Northern Hemisphere) fall on the same date every year?
It is not safely predictable from a fixed rule; the target year needs a current source.
Is March equinox / astronomical spring begins (Northern Hemisphere) an official public holiday?
The authority record verifies it within this scope: Astronomical season boundary / Northern Hemisphere; opposite seasonal meaning in the Southern Hemisphere. 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 March equinox / astronomical spring begins (Northern Hemisphere)?
The stored designation basis is: The U.S. Naval Observatory publishes target-year equinox instants and explains that equinoxes mark the beginning of spring or autumn depending on hemisphere.. Supporting provenance includes U.S. Naval Observatory — Earth seasons data service. The site does not infer a separate creator or founder unless reviewed evidence establishes one.
Is March equinox / astronomical spring begins (Northern Hemisphere) international or country-specific?
No single country is assigned to this record in the authority dataset. The source-defined scope is: Astronomical season boundary / Northern Hemisphere; opposite seasonal meaning in the Southern Hemisphere. 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 2026-09-09.