Source-backedFixed Annual

Clinical Trials Day

The Association of Clinical Research Professionals states Clinical Trials Day is observed annually on 20 May and documents its 2026 recognition initiative.

Date / rule20 May annually
ScopeInternational clinical-research professional community; coordinated by ACRP and sector partners
VerificationProfessional Association Verified
PortabilityFixed Annual
Evidence statusSource-backed
Last authority check2026-09-07
Target-year policyReuse Fixed
Next date this engine can safely resolveThursday, May 20, 2027See everything on May 20 →
Authority summary

What is Clinical Trials Day?

The Association of Clinical Research Professionals states Clinical Trials Day is observed annually on 20 May and documents its 2026 recognition initiative.

Date and recurrence

20 May annually

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 clinical-research professional community; coordinated by ACRP and sector partners. 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

Workplace, Professions & Appreciation →
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. Association of Clinical Research Professionals — Clinical Trials Day 2026Professional Association
Reader questions

Frequently asked questions

When is Clinical Trials Day?

20 May annually The stored recurrence guidance is: 20 May.

Does Clinical Trials 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 Clinical Trials Day an official public holiday?

The authority record verifies it within this scope: International clinical-research professional community; coordinated by ACRP and sector partners. 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 Clinical Trials Day?

The stored designation basis is: The Association of Clinical Research Professionals states Clinical Trials Day is observed annually on 20 May and documents its 2026 recognition initiative.. Supporting provenance includes Association of Clinical Research Professionals — Clinical Trials Day 2026. The site does not infer a separate creator or founder unless reviewed evidence establishes one.

Is Clinical Trials Day international or country-specific?

The record has international or global institutional scope: International clinical-research professional community; coordinated by ACRP and sector partners. 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 2026-09-07.

Same date

Other observances on May 20

Date guide →

These records also resolve to May 20, 2027 under the current authority data.

Source-backedFixed Annual

Independence Restoration Day

Timor-Leste / national public holiday and independence commemoration

Timor-Leste government material identifies 20 May as Independence Restoration Day and as a national holiday under the country’s public-holiday framework.

Source-backedRule Based Annual

National Aperitif Day

United States / informal aperitif observance

National Today and Checkiday independently define National Apéritif Day as the third Thursday in May each year.

Source-backedFixed Annual

National Day of Cameroon

Cameroon / National Day

The Presidency of Cameroon identifies May 20 as National Day and links the observance to the 1972 referendum establishing the Unitary State.

Source-backedRule Based Annual

National Notebook Day

United States-origin stationery / notebook appreciation observance

The inaugural 2016 announcement identifies May Designs as the creator; subsequent coverage records the recurring rule as the third Thursday in May.

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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.”