Source-backedRule Based Annual

World Architecture Day

International Union of Architects (UIA)

Date / ruleFirst Monday of October
ScopeOrganizer-backed global architecture observance
VerificationOrganizer Verified
PortabilityRule Based Annual
Evidence statusSource-backed
Last authority check2026-09-05
Target-year policyCalculate Rule
Next date this engine can safely resolveMonday, October 5, 2026See everything on October 5 →
Authority summary

What is World Architecture Day?

International Union of Architects (UIA)

Date and recurrence

First Monday of October

This observance follows a reusable calendar rule rather than one fixed Gregorian date. The actual date can move from year to year. Rule: First Monday of October

Scope and status

The verified scope stored for this record is Organizer-backed global architecture observance. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.

Classification

Topic and context

Arts, Entertainment & Lifestyle →
Accuracy controls

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.
Provenance

Sources

Source policy →
  1. International Union of Architects — About the UIAOrganizer Dedicated Page
Reader questions

Frequently asked questions

When is World Architecture Day?

First Monday of October The stored recurrence guidance is: First Monday of October.

Does World Architecture 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 World Architecture Day an official public holiday?

The authority record verifies it within this scope: Organizer-backed global architecture 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 Architecture Day?

The stored designation basis is: International Union of Architects (UIA). Supporting provenance includes International Union of Architects — About the UIA. The site does not infer a separate creator or founder unless reviewed evidence establishes one.

Is World Architecture Day international or country-specific?

The record has international or global institutional scope: Organizer-backed global architecture 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.

Same date

Other observances on October 5

Date guide →

These records also resolve to October 5, 2026 under the current authority data.

Source-backedRule Based Annual

Child Health Day

United States statutory patriotic/national observance

36 U.S.C. §105 requests an annual presidential proclamation designating the first Monday in October as Child Health Day and inviting organizations interested in child welfare to raise aware…

Source-backedFixed Annual

Constitution Day

Vanuatu / national holiday

The Government of Vanuatu holiday register lists Constitution Day on 5 October as a national holiday.

Source-backedFixed Annual

Implantação da República

Portugal / national republic commemoration and holiday

The Government of Portugal scheduled the official 115th anniversary commemoration of the Implantação da República for 5 October 2025; the government holiday register lists 5 October under t…

Source-backedFixed Annual

National Apple Betty Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars from different publication years list National Apple Betty Day on 5 October.

Source-backedFixed Annual

National Be Nice Day

United States / informal kindness observance

National Today gives National Be Nice Day a fixed October 5 recurrence, and Days Of The Year independently lists National Be Nice Day on October 5 across yearly calendars.

Source-backedFixed Annual

National Caribbean Civility Day

Caribbean-focused / World Civility Presidential Club-created humanitarian recognition observance

National Day Archives records October 5 and credits World Civility Presidential Club with founding the observance in 2020.

Explore further

Related observances with useful context

More in this topic →

Related records are selected from shared ontology signals. When a reviewed distinction exists, it is labeled separately so “related” is not mistaken for “the same observance.”