Evergreen date guide

What is celebrated on September 25?

See the observances and verified observance-history milestones attached to September 25. Each observance keeps its own source and date details.

Verified history

On this date in observance history

Today in history →

Selected observance milestones connected to this date, based on reviewed sources.

2025

Later action

National Lobster Day

The Senate designated September 25, 2025 as National Lobster Day.

2024

Later action

National Lobster Day

The Senate designated September 25, 2024 as National Lobster Day.

2019

First observance

National YogaFit Day

National Day Archives gives a 2019 founding year and an archived September 25, 2019 calendar lists National YogaFit Day on that date.

2016

First observance

National Cooking Day™

The creator-provided release explicitly identifies September 25, 2016 as the country’s first National Cooking Day.

2015

First observance

Research Administrator Day / International Research Administrators Day

MIT says the day was first celebrated in 2015; a contemporaneous NCURA community post documents September 25, 2015.

2014

Later action

Native American Day (California)

Added the fourth Friday in September, Native American Day, to the state holiday list in Government Code section 6700.

2012

First observance

National Psychotherapy Day

The launch announcement explicitly calls September 25, 2012 the first annual National Psychotherapy Day.

2009

Later action

Gold Star Mother's and Family's Day

Used the family-inclusive proclamation title Gold Star Mother's and Families' Day while the underlying statute remained titled Gold Star Mother's Day.

About this date

What this date contains

15 observances

Each observance is shown once in this view, with its own source and scope details available on the guide page.

0 repeat predictably

0 use a fixed annual date and 0 follow a reusable calendar rule.

0 are edition-specific

These dates are shown only for the year or edition that has been confirmed.

7 have a country-specific scope

Country-specific observances are not presented as worldwide events.

15 have in-depth guides

These pages include reviewed meaning, history, activities, facts and FAQs.

Reviewed depth

Other in-depth guides on September 25

Source-backedRule Based AnnualIn-depth guide

California Native American Day

Fourth Friday in September · California, United States / state observance and school-calendar framework

California Department of Education material identifies Native American Day on the fourth Friday in September, while Bureau of Indian Affairs history describes California’s state recognition…

Source-backedFixed AnnualIn-depth guide

International Ataxia Awareness Day

25 September each year · International ataxia-awareness effort

The National Ataxia Foundation states that International Ataxia Awareness Day is on September 25 each year and is a coordinated effort involving individuals and ataxia organizations around…

Source-backedFixed AnnualIn-depth guide

Math Storytelling Day

25 September · International / Natural Math community-created educational observance

Natural Math’s first-party toolkit says Math Storytelling Day is celebrated on September 25 and explains how Maria Droujkova and Sue VanHattum developed the observance.

Source-backedRule Based AnnualIn-depth guide

Michigan Indian Day

Fourth Friday in September · Michigan commemorative day established by state law

Michigan Department of Civil Rights

Source-backedFixed AnnualIn-depth guide

National Cooking Day™

25 September · United States / PotsandPans.com and Meyer Corporation-created home-cooking observance

Meyer Corporation’s creator-provided 2016 release says PotsandPans.com created National Cooking Day and identifies September 25 as the observance date.

Source-backedEdition SpecificIn-depth guide

National Lobster Day

25 September 2026 · United States / U.S. Senate edition-specific commemorative recognition

GovInfo records S. Res. 905, submitted and agreed to by the U.S. Senate on September 24, 2026, designating September 25, 2026 as National Lobster Day. Earlier Senate resolutions also design…

Explore the mix

Topics represented on September 25

All topics →

Community, Causes & Advocacy 3 Arts, Entertainment & Lifestyle 3 Food, Drink & Hospitality 3 Health, Wellness & Awareness 2 Workplace, Professions & Appreciation 2 Civic, Remembrance & History 1 Animals, Nature & Environment 1

15 observances

All observances on this date

Source-backedRule Based AnnualIn-depth guide

California Native American Day

Fourth Friday in September · California, United States / state observance and school-calendar framework

California Department of Education material identifies Native American Day on the fourth Friday in September, while Bureau of Indian Affairs history describes California’s state recognition…

Source-backedFixed AnnualIn-depth guide

International Ataxia Awareness Day

25 September each year · International ataxia-awareness effort

The National Ataxia Foundation states that International Ataxia Awareness Day is on September 25 each year and is a coordinated effort involving individuals and ataxia organizations around…

Source-backedFixed AnnualIn-depth guide

Math Storytelling Day

25 September · International / Natural Math community-created educational observance

Natural Math’s first-party toolkit says Math Storytelling Day is celebrated on September 25 and explains how Maria Droujkova and Sue VanHattum developed the observance.

Source-backedRule Based AnnualIn-depth guide

Michigan Indian Day

Fourth Friday in September · Michigan commemorative day established by state law

Michigan Department of Civil Rights

Source-backedFixed AnnualIn-depth guide

National Cooking Day™

25 September · United States / PotsandPans.com and Meyer Corporation-created home-cooking observance

Meyer Corporation’s creator-provided 2016 release says PotsandPans.com created National Cooking Day and identifies September 25 as the observance date.

Source-backedEdition SpecificIn-depth guide

National Lobster Day

25 September 2026 · United States / U.S. Senate edition-specific commemorative recognition

GovInfo records S. Res. 905, submitted and agreed to by the U.S. Senate on September 24, 2026, designating September 25, 2026 as National Lobster Day. Earlier Senate resolutions also design…

Source-backedFixed AnnualIn-depth guide

National Psychotherapy Day

25 September · United States / Psychotherapy Foundation-origin professional and public-awareness observance

A contemporaneous 17 September 2012 GoodTherapy/Psychotherapy Foundation announcement identifies 25 September 2012 as the first annual National Psychotherapy Day.

Source-backedFixed AnnualIn-depth guide

National YogaFit Day

25 September · United States / YogaFit Worldwide-created branded yoga-community observance with current YogaFit stewardship

National Day Archives identifies YogaFit Worldwide as founder in 2019 and September 25 as the annual date. Archived 2019 calendar evidence places National YogaFit Day on September 25, and Y…

Source-backedRule Based AnnualIn-depth guide

Native American Day (California)

Fourth Friday in September; 25 September 2026 · California / state educational observance

California’s Department of Education quotes Education Code section 37220.7 and identifies the fourth Friday in September as Native American Day, including 25 September 2026.

Source-backedFixed AnnualIn-depth guide

Research Administrator Day / International Research Administrators Day

25 September annually in cited university/professional sources · Research administration profession recognition

MIT states that Research Administrator Day on September 25 was first celebrated in 2015 by NCURA; SRA International currently uses Research Administrator Day while NCURA Region I uses Inter…

Source-backedRule Based AnnualIn-depth guide

Save the Koala Day

Last Friday in September; 25 September 2026 verified · Australia / Australian Koala Foundation campaign

The Australian Koala Foundation lists Save the Koala Day as the last Friday in September and identifies September 25 for the 2026 observance.

Source-backedRule Based AnnualIn-depth guide

Sport Purple for Platelets Day

Last Friday in September · Global / Platelet Disorder Support Association awareness campaign

PDSA states that Sport Purple for Platelets Day is recognized on the last Friday of every September as part of platelet-disorder awareness work.

Source-backedRule Based AnnualIn-depth guide

Tag des Deutschen Butterbrotes (German Butterbrot Day)

Last Friday in September · Germany / German bread-and-butter food-culture campaign tradition

WDR documents that the CMA established the last Friday in September as Tag des Deutschen Butterbrotes in 1999 and that the observance continued after the CMA ceased to exist in 2009.

Source-backedFixed AnnualIn-depth guide

World Dream Day

25 September annually · Global organizer-led participatory observance

World Dream Day’s official site states that the observance is held annually on 25 September and its current 2026 page describes the campaign’s focus on ideas, goals and dreams.

Source-backedFixed AnnualIn-depth guide

World Pharmacists Day

25 September · International / FIP-led pharmacy profession observance

International Pharmaceutical Federation states that its Council adopted World Pharmacists Day in 2009, that September 25 marks FIP’s 1912 inception anniversary, and that FIP leads the campa…

How dates are selected

This page combines fixed annual dates, reusable calendar rules and year-specific dates confirmed for 2026. Variable or historical dates are included only when they are clearly supported.

Read the methodology →