International Museum Day
Date and recurrence
18 May
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 International Council of Museums global observance. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.
Also known as
International Museum Day
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.
Sources
Frequently asked questions
When is International Museum Day?
18 May The stored recurrence guidance is: 18 May.
Does International Museum 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 International Museum Day an official public holiday?
The authority record verifies it within this scope: International Council of Museums global 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 International Museum Day?
The authority record is documented by icom.museum — authoritative source. The site does not infer a separate creator or founder unless the source evidence establishes one.
Is International Museum Day international or country-specific?
The record has international or global institutional scope: International Council of Museums global 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 May 18
These records also resolve to May 18, 2027 under the current authority data.
Constitution and State Flag Day
Turkmenistan government states the national observance is celebrated every year on 18 May
Fête du Drapeau et de l’Université
The Government of Haiti documented official 18 May 2025 ceremonies for the Fête du Drapeau et de l’Université and described the date’s national symbolic importance.
HIV Vaccine Awareness Day
NIH states that HIV Vaccine Awareness Day is held annually on May 18 and recognizes volunteers, community members, health professionals and scientists working on preventive HIV-vaccine rese…
HIV Vaccine Awareness Day (HVAD)
NIH HIVinfo states that HIV Vaccine Awareness Day is observed each year on May 18. The page title “World AIDS Vaccine Day” is treated as a search/legacy alias, not the authority’s official…
National Cheese Soufflé Day
Two Association of Nutrition & Foodservice Professionals chapter calendars list National Cheese Soufflé Day on 18 May.
National Stop Nausea Day
Reliefband Technologies states that it created National Stop Nausea Day and that it is celebrated on the third Tuesday in May each year.