World Alzheimer’s Day
Alzheimer's Disease International (ADI)
Date and recurrence
21 September
This authority record treats the observance as a fixed annual date. The same month and day can be reused unless a stronger source changes the rule.
Scope and status
The verified scope stored for this record is Organizer-backed international observance. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.
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.
- Health Information Not Medical Advice.
Sources
- Alzheimer's Disease International — World Alzheimer's Day FAQOrganizer Authoritative Page
Frequently asked questions
When is World Alzheimer’s Day?
21 September The stored recurrence guidance is: 21 September.
Does World Alzheimer’s Day fall on the same date every year?
The authority record classifies it as fixed annual, so its month and day are reusable unless stronger evidence changes the rule.
Is World Alzheimer’s Day an official public holiday?
The authority record verifies it within this scope: Organizer-backed international observance. 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 World Alzheimer’s Day?
The stored designation basis is: Alzheimer's Disease International (ADI). Supporting provenance includes Alzheimer's Disease International — World Alzheimer's Day FAQ. The site does not infer a separate creator or founder unless reviewed evidence establishes one.
Is World Alzheimer’s Day international or country-specific?
The record has international or global institutional scope: Organizer-backed international observance. That does not mean every country treats the date as a public holiday or observes it in the same way.
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 2026-09-05.
Other observances on September 21
These records also resolve to September 21, 2026 under the current authority data.
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International Day of Peace
A/RES/36/67
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National Opioid Awareness Day
The U.S. Indian Health Service identifies September 21 as National Opioid Awareness Day in its public-health education material.