National CleanUp Day
The official National CleanUp Day organization states that the observance takes place every year on the third Saturday in September.
Date and recurrence
Third Saturday in September
This observance follows a reusable calendar rule rather than one fixed Gregorian date. The actual date can move from year to year. Rule: Third Saturday in September
Scope and status
The verified scope stored for this record is United States / organizer-led volunteer cleanup campaign. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.
Also known as
National Clean Up Day, National CleanUp 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
- National CleanUp Day — official organizerNonprofit Event Organizer
Frequently asked questions
When is National CleanUp Day?
Third Saturday in September The stored recurrence guidance is: Third Saturday in September.
Does National CleanUp Day fall on the same date every year?
It follows a recurring calendar rule, so the Gregorian date can change from year to year.
Is National CleanUp Day an official public holiday?
The authority record verifies it within this scope: United States / organizer-led volunteer cleanup campaign. 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 National CleanUp Day?
The stored designation basis is: The official National CleanUp Day organization states that the observance takes place every year on the third Saturday in September.. Supporting provenance includes National CleanUp Day — official organizer. The site does not infer a separate creator or founder unless reviewed evidence establishes one.
Is National CleanUp Day international or country-specific?
This authority record is country-scoped to United States. Its fuller verified scope is: United States / organizer-led volunteer cleanup campaign.
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.
Other observances on September 19
These records also resolve to September 19, 2026 under the current authority data.
Aortic Dissection Awareness Day
The Aortic Dissection Charitable Trust states that September 19 marks Aortic Dissection Awareness Day every year and lists a global September 19, 2026 event.
Batman Day
DC’s official Batman Day announcement identifies the 2026 event date and fan celebration
Boys’ and Girls’ Club Day for Kids
Current observance calendars consistently place Boys’ and Girls’ Club Day for Kids on the third Saturday of September.
Día de las Glorias del Ejército
Chilean Army; legal-holiday tradition traced to a 1915 decree
International Coastal Cleanup®
Ocean Conservancy states that the International Coastal Cleanup is held annually on the third Saturday of September, with many cleanups also occurring throughout the month.
International Eat An Apple Day
National Day Calendar and National Today independently define International Eat an Apple Day as the third Saturday in September each year.