May Holidays

In looking at the May Holidays listing, a couple of the most popular Holidays in May are Mother's Day and Memorial Day.  Looking down the  list below, especially in the Daily Holidays section, there are a lot of Military Holidays that fall in the month of May.


Holidays and Observances May Holidays - pictured is our Mom.

Our Mom, Thelma Smith, at Leigh's son, Ryan's wedding on 07-27-07 at the Catalina Country Club on Catalina Island. She has been a great Mom, and we look forward to celebrating many more Mother's Day's in her honor!


Below you will find our listing of May Holidays and Observances that fall in the month of May. 

NOTE:

  1. A page on each holiday will be coming soon and linked below.
  2. If a date is a movable holiday, that is different every year, we'll include the year as well as the date rule below. Otherwise, the holiday falls on the same date each year. 
  3. If we have made an error, have any incorrect dates, or have left off any Holidays, Observances, or Awareness Days etc, please let us know! Contact Us!


Annual Holidays and Observances
United Nations International Years

Each year, the United Nations chooses a few different topics, or themes that they want all the Countries around the World to focus on. 

In 2026, these are:

  • International Year of Rangelands and Pastoralists

In 2025, these are:

  • International Year of Glaciers Preservation

In 2024, these are:

  • International Year of Camelids

In 2023, these are:

  • Interational Dialogue as a Guarantee of Peace
  • International Year of Millets 

In 2022, these are:

  • International Year of Artisanal Fisheries and Aquaculture
  • International Year of Sustainable Mountain Development
  • International Year of Basic Sciences for Sustainable Development
  • Interational Year of Glass

In 2021, these are:

  • International Year of Creative Economy for Sustainable Development
  • International Year of Fruits and Vegetables
  • International Year of Peace and Trust

In 2020, these are:

  • International Year of Plant Health
  • International Year of the Nurse and the Midwife

In 2019, these are:

  • International Year of Indigenous Languages
  • International Year of Moderation
  • International Year of the Periodic Table of Chemical Elements 

In 2017, these are:

  • International Year of Sustainable Tourism for Development

In 2016, these are:

  • International Year of Pulses

In 2015, these are:

  • International Year of Light and Light-based Technologies
  • International Year of Soils

In 2014, these are:

  • International Year of Crystallography
  • International Year of Family Farming
  • International Year of Small Island Developing States
  • International Year of Solidarity with the Palestinian People

In 2013, these are:

  • International Year of Quinoa
  • International Year of Water Cooperation

In 2012, these are:

  • International Year of Cooperatives
  • International Year of Sustainable Energy for All.


Monthly Holidays and Observances


  • American Cheese Month
  • American Wetlands Month
  • Arthritis Awareness Month
  • Asian American and Pacific Islander Heritage Month
  • Asthma Awareness Month
  • Awareness of Medical Orphans Month
  • Be Kind to Animals Month
  • Better Hearing and Speech Month
  • Better Sleep Month
  • Breath Easy Month
  • Chip Your Pet Month
  • Clean Air Month
  • Correct Posture Month
  • Deck Safety Month
  • Digestive Diseases Awareness Month
  • Electromagnetic Radiation Awareness Month
  • Employee Health & Fitness Month
  • Family Wellness Month
  • Fibromyalgia Education and Awareness Month
  • Food Allergy Awareness Month
  • Fungal Infection Awareness Month
  • Gardening for Wildlife Month
  • Get Caught Reading Month
  • Gifts from the Garden Month
  • Global Employee Health and Fitness Month
  • Global Youth Traffic Safety Month
  • Haitian Heritage Month
  • Heal the Children Month
  • Healthy Vision Month/UV Safety
  • High Blood Pressure Awareness Month
  • Home Schooling Awareness Month
  • Huntington's Disease Awareness Month
  • International Business Image Improvement Month
  • International Civility Awareness Month
  • International Drum Month
  • International Internal Audit Awareness Month
  • International Respect for Chickens Month
  • International Victorious Woman Month
  • Internet and E-Commerce Services Month
  • Jewish American Heritage Month
  • Labor History Month
  • Latino Books Month
  • Lupus Awareness Month
  • Lyme Disease Awareness Month
  • MCS Awareness Month
  • Melanoma / Skin Cancer Detection and Prevention Month
  • Mental Health Month
  • Motorcycle Safety Awareness Month
  • National Asparagus Month
  • National Allergy and Asthma Awareness Month
  • National Barbeque Month
  • National Bicycle Safety Month
  • National Celiac Disease Awareness Month
  • National Chocolate Custard Month
  • National Comfort Month
  • National Community Action Month
  • National Cystic Fibrosis Awareness Month
  • National Date Your Mate Month
  • National Duckling Month
  • National Egg Month
  • National Family Month (May 13 - June 17)
  • National Foster Care Month
  • National Gazpacho Aficionado Month
  • National Good Car-Keeping Month
  • National Guy Pride Month
  • National Hamburger Month
  • National Hepatitis Awareness Month
  • National High Blood Pressure Education Month
  • National Inventors Month
  • National Kite Month - March 28 - May 3, 2016
  • National Meditation Month
  • National Mediterranean Diet Month
  • National Mental Health Month
  • National Military Appreciation Month
  • National Moving Month
  • National Osteoporosis Awareness and Prevention Month
  • National Pet Month
  • National Photo Month
  • National Physical Fitness and Sports Month
  • National Preservation Month
  • National Prom Graduation Safety Month
  • National Recommitment Month
  • National Salad Month
  • National Salsa Month
  • National San Architect Month
  • National Service Dog Eye Examination Month
  • National Sight-Saving Month
  • National Smile Month
  • National Strawberry Month
  • National Stroke Awareness Month
  • National Sweet Vidalia Onion Month
  • National Teen Pregnancy Prevention Month
  • National Teen Self-Esteem Month
  • National Toxic Encephalopathy and Chemical Injury Awareness Month
  • National Tuberous Scierosis Awareness Month
  • National Vinegar Month
  • National Youth Traffic Safety Month
  • Necrotizing Fasciitis Awareness Month
  • Neurofibromatosis Month
  • No Mow May
  • Older Americans Month
  • Personal History Awareness Month
  • Posture Month
  • Preeclampsia Awareness Month
  • Prepare Tomorrow's Parents Month - May 14 - June 18, 2023 (From Mother's Day to Father's Day)
  • REACT Month
  • Revise Your Work Schedule Month
  • Small Business Month
  • Spiritual Literacy Month
  • Steelmark Month
  • Strike Out Strokes Month
  • Syringomyelia Awareness Month
  • Teen CEO Month
  • Tennis Month
  • Tourette Syndrome Awareness Month 
  • Trauma Awareness Month
  • Ultraviolet Awareness Month
  • Women's Health Care Month
  • Young Achievers / Leaders of Tomorrow Month


Weekly Holidays and Observances

  • Air Quality Awareness Week - May 6-10, 2024
  • American Craft Beer Week - May 13-19, 2024
  • Armed Forces Week - May 11-18, 2024 (Second Saturday to Third Saturday in May)
  • Arson Awareness Week - May 5-11, 2024 (First Full Week in May)
  • Ascension of Baha'uLlah - Evening of May 28 - Evening of May 29, 2024
  • Be Kind to Animals Week - May 5-11, 2024 (First Full Week in May)
  • Black Single Parents Week - May 28 - June 3
  • Cannes International Film Festival - May 14-25, 2024 in Cannes, France is the most prestigious and most publicized film festival in the World.
  • Choose Privacy Week - May 1-7
  • Click It or Ticket Mobilization (Covers Memorial Day Weekend) - May 20 - June 2, 2024
  • Collegiate Safe Spring Break Programming - Late February - Early April
  • Dating and Life Coach Recognition Week - May 5-11, 2024 (First Full Week in May)
  • Drinking Water Week - May 5-11, 2024 (First Full Week in May)
  • Economic Development Week - May 6-10, 2024
  • Emergency Medical Services Week (EMS) - May 19-25, 2024 (Third Full Week in May)
  • Festival of Ridvan - April 20 - May 2, 2024
  • Flexible Work Arrangement Week - May 5-11, 2024 (First Full Week in May) 
  • Food Allergy Awareness Week - May 12-18, 2024 (Second Full Week in May)
  • Frog Jumping Jubilee Day (Calaveras County, CA) - May 16-19, 2024
  • Global Day of Action on Military Spending - April 13 - May 9, 2023 (2024 TBA)
  • Go Diaper Free Week - April 28 - May 4, 2024 (7 Days Starting Last Sunday in April)
  • Goodwill Industries Week - May 5-11, 2024 (First Full Week in May)
  • Healthcare Documentation Integrity Week - May 19-25, 2024
  • Healthy and Safe Swimming Week - May 20-26, 2024 (Week before Memorial Day Mon-Sun)
  • Holocaust Remembrance Day or Yom HaShoah - Evening of May 5, 2024 to Evening of May 6, 2024
  • Holocaust Remembrance Week - May 5-12, 2024 (Starts the Sunday before Yom HaShoah, Holocaust Remembrance Day, and continues through the following Sunday)
  • Hospital Week - May 12-18, 2024 (Second Full Week of May)
  • International Building Safety Week - May 5-11, 2024 (First Full Week in May)
  • International Clitoris Awareness Week - May 5-11, 2024 (First Full Week in May)
  • International Coaching Week - May 13-19, 2024
  • International Heritage Breeds Week - May 19-25, 2024 (Third Week of May)
  • International Mariachi Week - May 1-5, 2024
  • International Pickles Week - Third Week in May
  • Kids Win Week - May 5-11, 2024 (First Full Week in May)
  • Lag B'omer - Evening of May 25 - Evening of May 26, 2024 (18th Day of the Month of Lyar in Jewish Calendar)
  • MCS Awareness Week or Multiple Chemical Sensitivity Awareness Week - (Second Week in May)
  • Medical Transcriptionist Week - May 19-25, 2024 (Third Week in May)
  • Mudbug Madness Days - May 24-26, 2024 (Memorial Day Weekend)
  • National Alcohol & Other Drug-Related Birth Defects Week - May 5-11, 2024 (First Full Week in May)
  • National Anxiety & Depression Awareness Week - May 5-11, 2024 (First Full Week in May)
  • National Auctioneers Week - April 28 - May 4, 2024 (Observed the week ending with National Auctioneers Day)
  • National Backyard Games Week - May 19-25, 2024 (Week before Memorial Day)
  • National Bike to Work Week - May 13-19, 2024 
  • National Bike Week - Third week in May
  • National Charter Schools Week - May 13-17, 2024
  • National Children's Book Week - May 6-12, 2024, and also November 4-10, 2024
  • National Children's Mental Health Week - May 5-11, 2024, and also February 4-10, 2024 (First Full Week in February and May)
  • National Correctional Officer's Week - May 5-11, 2024 (First Full Week in May)
  • National Eosinophil Awareness Week - May 19-25, 2024 (Third Week in May)
  • National Etiquette Week - May 13-19, 2024 (Begins Second Monday of Full Week in May)
  • National Fallen Firefighters Memorial Weekend - May 4-5, 2024
  • National Family Week - May 5-11, 2024 (First Full Week in May)
  • National Foul Ball Week - May 16-21
  • National Frozen Yogurt Week - Fourth week in May
  • National Green Week - February 4 - April 30, 2024 (First Full Week in February through April 30th)
  • National Hamburger Week - Second week in May
  • National Healthcare Documentation Integrity Week - May 19-25, 2024
  • National Herb Week - May 5-11, 2024 (Week Prior to Mother's Day)
  • National Heritage Breeds Week - May 19-25, 2024 (Third Full Week in May)
  • National Historic Preservation Week - Second Week in May
  • National Hospital Week - May 12-18, 2024 (Second week in May)
  • National Hug Holiday Week - May 7-13
  • National Hurricane Preparedness Week - May 5-11, 2024 (First Full Week in May)
  • National Morel Mushroom Festival - May 16-19, 2024
  • National New Friends, Old Friends - May 19-25, 2024 (Third Week in May)
  • National Nurses Week - May 6-12
  • National Pet Week - May 5-11, 2024 (First Full Week in May)
  • National Physical Education and Sports Week - May 1-7 (First Week in May)
  • National Police Week - May 12-18, 2024
  • National Polka Weekend - May 24-26, 2024 (Memorial Day Weekend)
  • National Postcard Week - May 5-11, 2024 (First Full Week in May)
  • National Prevention Week - May 12-18, 2024 
  • National Public Gardens Week - May 10-19, 2024 (Friday before to the Sunday after Mother's Day)
  • National Raisin Week - May 5-11, 2024 (First Full Week in May)
  • National Return to Work Week - May 12-18, 2024 (Second Full Week in May)
  • National Safe Boating Week - May 18-24, 2024 (Week Before Memorial Day)
  • National Safety Stand Down Week - May 6-10, 2024
  • National Salvation Army Week - May 13-19, 2024
  • National Skilled Nursing Care Week - May 12-18, 2024 (Starts on Mother's Day to Following Saturday)
  • National Small Business Week - April 28 - May 4, 2024 (First Week of May)
  • National Stationary Week - May 13-19, 2024
  • National Stuttering Awareness Week - May 12-18, 2024 (Second Full Week in May)
  • National Sun Safety Week - May 6-12, 2024
  • National Tourism Week - May 5-11, 2024 (First Full Week in May)
  • National Transportation Week - May 16-22, 2024 (Always has Third Friday in May)
  • National Travel & Tourism Week - May 19-25, 2024
  • National Unicycle Week - May 19-25, 2024 (Begins on Third Sunday in May)
  • National Vegetarian Awareness Week - May 15-21, 2023
  • National Wildflower Week - May 6-12, 2024 (First Full Week in May Starting on Monday)
  • National Women's Health Week - May 12-18, 2024 (Week Starting With Mother's Day)
  • North American Occupational Safety and Health Week (NAOSH) - May 5-11, 2024 (First Full Week in May)
  • Old Time Player Piano Weekend - May 24-26, 2024 (Memorial Day Weekend)
  • Older Americans Mental Health Week - May 19-25, 2024 (Last Full Week in May) 
  • Orthodox Lent - March 18 - May 4, 2024
  • Pesach Sheni - Evening of May 21 - Evening of May 22, 2024
  • PGA Championship - May 13-19, 2024
  • Prepare Tomorrow's Parents Month - May 12 - June 16, 2024 (Mother's Day to Father's Day)
  • Preservation Week - April 28 - May 4, 2024
  • Public Service Recognition Week - May 5-11, 2024 (First Full Week in May)
  • Puppy Mill Action Week - May 6-12, 2024 (Begins the Monday before Mother's Day)
  • Reading is Fundamental Week - May 12-18, 2024 (Second Full Week in May) 
  • Root Canal Appreciation Week - May 5-11, 2024 (First Full Week in May)
  • Salute to Moms 35+ Week - May 12-18, 2024 (Starts on Mother's Day)
  • Salvation Army Week - May 5-11, 2024 (Second Week in May)
  • Screen-Free Week (Digital Detox Week - Formerly TV Turnoff Week) - May 6-12, 2024 (First Full Week in May)
  • Scripps National Spelling Bee - May 28-30, 2024
  • Stewardship Week - April 28 - May 5, 2024 (Last Sunday in April to First Sunday in May)
  • Teacher Appreciation Week - May 6-10, 2024 (First Full Monday-Friday week in May)
  • The Biggest Week in American Birding - May 3-12, 2024
  • Time of Remembrance and Reconciliation for those who Lost their Lives during the Second World War - May 8-9
  • UN Global Road Safety Week - May 10-14, 2024
  • Universal Family Week - May 10-16
  • Update Your References Week - May 5-11, 2024 (First Full Week in May)
  • Vivid Sydney - May 24 - June 15, 2024, located in Sydney, Australia is where art, technology, and commerce intersect, and is an event of light, music, and ideas. Featuring outdoor lighting sculptures, cutting edge contemporary music, and the illumination of the Sydney Opera House. Check out our Holidays in Australia page!
  • Week of Solidarity with the Peoples of Non Self-Governing Territories - May 25-31
  • Week of the Classroom Teacher - May 5-11, 2024 (First Full Week in May)
  • Westminster Dog Show - May 13-14, 2024
  • Work at Home Mom's Week - May 12-18, 2024 (Starts on Mother's Day)
  • World Cocktail Week - May 6-13
  • World Dystonia Awareness Week - May 3-11
  • World Migratory Bird Day - May 11-12, 2024 (Second Weekend in May)
  • World Schizophrenia Awareness Week - May 19-25, 2024 (? on Date)
  • World Trade Week - May 12-18, 2024 (Third Week in May)
  • Yom HaAtzmaut - Evening of May 13 to Evening of May 14, 2024
  • Yom HaShoah - Evening of May 5 to Evening of May 6, 2024
  • Yom HaZikaron - Evening of May 12 to Evening of May 13, 2024
Holidays and Observances May Holidays

Daily Holidays and Observances

  • Batman Day - May 1
  • Beltane - May 1
  • Couple Appreciation Day - May 1
  • CSS Reboot Day - May 1
  • Executive Coaching Day - May 1
  • Frequent Flyer Day - May 1
  • Global Love Day - May 1
  • Great American Grump Out - May 1, 2024 (First Wednesday of May)
  • International Sunflower Guerilla Gardening Day - May 1
  • International Worker's Day - May 1
  • Keep Kids Alive Drive 25 Day - May 1
  • Law Day - May 1
  • Lei Day - May 1 (U.S. State of Hawaii)
  • Loyalty Day - May 1
  • May Day - May 1
  • Mother Goose Day - May 1
  • National Anxiety Disorders Screening Day - May 1, 2024 (First Wednesday in May)
  • National Chocolate Parfait Day - May 1
  • National Day to Prevent Teen and Unplanned Pregnancy - May 1, 2024 (First Wednesday in May)
  • National (Deaf) Interpreter Day - May 1, 2024 (First Wednesday in May)
  • National Heatstroke Prevention Day - May 1
  • National Purebred Dog Day - May 1
  • National Skilled Trades Day - May 1, 2024 (First Wednesday in May)
  • New Homeowners Day - May 1
  • Phone in Sick Day - May 1
  • Project Aces Day - May 1, 2024 (First Wednesday in May) (Aces = All Children Exercise Simultaneously)
  • Save the Rhino Day - May 1
  • School Principals' Day - May 1
  • Silver Star Service Banner Day - May 1
  • Therapeutic Massage Awareness Day - May 1
  • Worthy Wage Day - May 1
  • Baby Day - May 2
  • Brothers and Sisters Day - May 2
  • International Harry Potter Day - May 2 
  • International Scurvy Awareness Day - May 2
  • National Day of Prayer - May 2, 2024 (First Thursday in May)
  • National Day of Reason - May 2, 2024 (First Thursday in May) - Set up in 2003 by Humanists/Atheists on the same day as the National Day of Prayer for a secular alternative
  • National Fire Day - May 2
  • National Life Insurance Day - May 2
  • National Play Your Ukulele Day - May 2
  • National Truffles Day - May 2
  • Take a Baby to Lunch Day - May 2
  • World Password Day - May 2, 2024 (First Thursday in May)
  • World Tuna Day - May 2
  • Garden Meditation Day - May 3
  • International Space Day - May 3, 2024 (First Friday in May)
  • Kentucky Oaks - May 3, 2024 (Friday before the Kentucky Derby)
  • National Chocolate Custard Day - May 3
  • National Lumpy Rug Day - May 3
  • National Public Radio Day - May 3
  • National Raspberry  Popover Day - May 3
  • National SAN Architect Day - May 3
  • National Specially-abled Pets Day - May 3
  • National Textile Day - May 3
  • National Two Different Colored Shoes Day - May 3
  • No Pants Day - May 3, 2024 (First Friday in May)
  • Orthodox Good Friday - May 3, 2024
  • Paranormal Day - May 3
  • School Lunch Hero Day - May 3, 2024 (First Friday in May)
  • Sun Day - May 3
  • Wordsmith Day - May 3
  • World Press Freedom Day - May 3
  • Anti-Bullying Day - May 4
  • Bird Day - May 4
  • Bladder Cancer Awareness Day - May 4, 2024 (First Saturday in May)
  • Bombshell's Day - May 4, 2024 (First Saturday in May)
  • Childhood Stroke Awareness Day - May 4, 2024 (First Saturday in May)
  • Dave Brubeck Day (Jazz Pianist and Composer) - May 4
  • Free Comic Book Day - May 4, 2024 (First Saturday in May)
  • Intergalactic Star Wars Day - May 4
  • International Doodle Dog Day - May 4, 2024 (First Saturday in May)
  • International Drone Day - May 4, 2024 (First Saturday in May)
  • International Female Ride Day (IFRD) - May 4
  • International Firefighter's Day - May 4
  • International Respect for Chickens Day - May 4
  • Join Hands Day: Youth and Adults Volunteering Together - May 4, 2024 (First Saturday in May)
  • Kentucky Derby - May 4, 2024 (First Saturday in May)
  • K.I.N.D. Day - May 4 (K.I.N.D. = Kids in Need of Diapers)
  • Kent State Shootings Remembrance - May 4 (Local Observance in Ohio)
  • Learn to Ride a Bike Day - May 4, 2024 (First Saturday in May)
  • Mariachi Day - May 4, 2024 (First Saturday in May)
  • National Auctioneers Day - May 4, 2024 (First Saturday in May)
  • National Candied Orange Peel Day - May 4
  • National Explosive Ordinance Disposal (EOD) Day - May 4, 2024 (First Saturday of May)
  • National Fitness Day - May 4, 2024 (First Saturday in May)
  • National Herb Day - May 4, 2024 (First Saturday in May) and also April 27, 2024
  • National Homebrew Day - May 4, 2024 (First Saturday in May)
  • National Kids Fitness Day - May 4
  • National Orange Juice Day - May 4
  • National Play Outside Day - May 4, 2024 - (First Saturday in EVERY Month)
  • National Scrapbooking Day - May 4, 2024 (First Saturday in May)
  • National Weather Observers Day - May 4
  • National Wildfire Community Preparedness Day - May 4, 2024 (First Saturday in May)
  • Orthodox Holy Saturday - May 4, 2024
  • Petite and Proud Day - May 4
  • Pilates Day - May 4, 2024 (First Saturday in May)
  • Renewal Day - May 4
  • Rhode Island Independence Day - May 4
  • Star Wars Day - May 4
  • Start Seeing Monarchs Day - May 4, 2024 (First Saturday in May)
  • World Beer Pong Day - May 4, 2024 (First Saturday in May)
  • World Give Day - May 4
  • World Naked Gardening Day - May 4, 2024 (First Saturday in May)
  • Bats Day in the Fun Park - May 5, 2024
  • Bonza Bottler Day - May 5
  • Cartoonists Day - May 5
  • Cinco de Mayo - May 5
  • Europe Day (Council of Europe) - May 5
  • Hand Hygiene Day - May 5
  • Hug a Shed and Take a Selfie Day - May 5
  • International Baby Lost Mother's Day - May 5, 2024 (First Sunday in May)
  • International Bereaved Mother's Day - May 5, 2024 (First Sunday in May)
  • International Midwives Day - May 5
  • International Permaculture Day - May 5, 2024 (First Sunday in May)
  • Lemonade Day - May 5, 2024 (First Sunday in May)
  • Mayday for Mutts - May 5, 2024 (First Sunday in May)
  • Motorcycle Mass and Blessings of the Bike - May 5, 2024 (First Sunday in May)
  • Museum Lover's Day - May 5
  • Nail Day - May 5
  • National Hoagie Day - May 5
  • National Infertility Survival Day - May 5, 2024 (First Sunday in May)
  • National Ride a Bike Day - May 5, 2024
  • National Silence the Shame Day - May 5
  • Orthodox Easter - May 5, 2024
  • Oyster Day - May 5
  • Revenge of the Fifth - May 5
  • Rural Life Sunday - May 5, 2024 (First Sunday in May)
  • Square Root Day - not until May 5, 2025
  • Totally Chipotle Day - May 5
  • Tuba Day - May 3, 2024 (First Friday in May)
  • World Laughter Day - May 5, 2024 (First Sunday in May)
  • World Portuguese Language Day - May 5
  • Great Lakes Awareness Day - May 6, 2024 (Monday of the First Full Week in May)
  • International No Diet Day - May 6
  • Joseph Brackett Day - May 6
  • Melanoma Monday - May 6, 2024 (First Monday in May)
  • National Beverage Day - May 6
  • National Crepes Suzette Day - May 6
  • National Meeting Planners Appreciation Day - May 6, 2024 (Monday of the First Full Week in May)
  • National Nurses Day, or National RN Recognition Day - May 6
  • National Tourist Appreciation Day - May 6
  • No Homework Day - May 6
  • Orthodox Easter Monday - May 6, 2024
  • Childhood Depression Awareness Day - May 7, 2024 (First Tuesday in May)
  • Foster Care Day - May 7, 2024 (First Tuesday in May)
  • National Barrier Awareness Day - May 7
  • National Concert Day - May 7, 2024 (First Tuesday in May)
  • National Cosmopolitan Day - May 7
  • National Golf Day - May 7, 2024 (First Tuesday in May) 
  • National Roast Leg of Lamb Day - May 7
  • National Teachers Day - May 7, 2024 (Tuesday of the First Full Week in May)
  • National Tourism Day - May 7
  • Paste Up Day - May 7
  • World Asthma Day - May 7, 2024 (First Tuesday in May)
  • Donate a Day's Wages to Charity - May 8, 2024 (Second Wednesday in May)
  • Emancipation Day - (Columbus, Mississippi) - May 8
  • Free Trade Day - May 8
  • Iris Day - May 8
  • National Coconut Cream Pie Day - May 8
  • National Empanada Day - May 8
  • National Give Someone a Cupcake Day - May 8
  • National Have a Coke Day - May 8
  • National Night Shift Workers Day - May 8, 2024 (Second Wednesday in May)
  • National Receptionists Day - May 8, 2024 (Second Wednesday in May)
  • National Root Canal Appreciation Day - May 8, 2024 (Second Wednesday in May)
  • National School Nurse Day - May 8, 2024 (Wednesday of National Nurse Week on May 6-12)
  • National Student Nurses Day - May 8
  • National Third Shift Workers Day - May 8, 2024 (Second Wednesday in May)
  • National Walk Bike & Roll to School Day - May 8
  • No Socks Day - May 8
  • Truman Day - May 8, 2024 (On or around May 8)
  • V-E Day - May 8
  • World Facilities Management Day - May 8, 2024 (Wednesday of the Second Full Week in May)
  • White Lotus Day - May 8
  • World Ovarian Cancer Day - May 8
  • World Red Cross Day - May 8
  • Ascension Day (of Jesus) - May 9, 2024 (40th Day after Easter)
  • Hurrah For Buttons Day - May 9
  • Lost Sock Memorial Day - May 9
  • National Butterscotch Brownie Day - May 9
  • National Children's Mental Health Awareness Day - May 9, 2024
  • National Moscato Day - May 9
  • Tear The Tags off the Mattress Day - May 9
  • Alaska Mining Day - May 10, 2024
  • Child Care Provider Day - May 10, 2024 (Friday before Mother's Day)
  • Clean Up Your Room Day - May 10
  • Confederate Memorial Day - May 10, 2024 (States of North Carolina and South Carolina) 
  • Fintastic Friday: Giving Sharks a Voice - May 10, 2024 (Second Friday in May)
  • Military Spouse Appreciation Day - May 10, 2024 (Friday before Mother's Day)
  • National Lipid Day - May 10
  • National Provider Appreciation Day - May 10, 2024 (Friday before Mother's Day)
  • National Public Gardens Day - May 10, 2024 (Friday before Mother's Day)
  • National Shrimp Day - May 10
  • National Small Business Day - May 10
  • One Day Without Shoes - May 10
  • Trust Your Intuition Day - May 10
  • World Lupus Day - May 10
  • American Indian Day - May 11, 2024 (Second Saturday in May)
  • Armed Forces Day Military-Amateur Crossband Communications Day - May 11, 2024 (A week before Armed Forces Day)
  • Bereaved Mother's Day - May 11, 2024 (Second Saturday in May)
  • Birthmother's Day - May 11, 2024 (Saturday before Mother's Day)
  • Brunch for Lunch Day - May 11, 2024 (Day Before Mother's Day)
  • Cornelia de Lange Syndrome Awareness Day - (CdLS) May 11, 2024 (Second Saturday in May)
  • Eat What you Want Day - May 11
  • Hostess Cupcake Day - May 11
  • International Migratory Bird Day - May 11, 2024 (Second Saturday in May)
  • Letter Carrier's Stamp Out Hunger Food Drive Day - May 11, 2024 (Second Saturday in May)
  • Make a Book Day - May 11, 2024 (Thursday of National Family Reading Week, but in 2024 it is on a Saturday)
  • Martin Z. Mollusk Day - May 11, 2024 (Saturday of First Full Week in May) 
  • Mother Ocean Day - May 11, 2024 (Saturday before Mother's Day)
  • National Animal Disaster Preparedness Day - May 11, 2024 (Second Saturday in May)
  • National Archery Day - May 11, 2024 (Second Saturday in May)
  • National Babysitters Day - May 11, 2024 (Saturday before Mother's Day)
  • National Dog Mom's Day - May 11, 2024 (Saturday before Mother's Day)
  • National Foam Rolling Day (RE: Massage) - May 11
  • National Miniature Golf Day - May 11, 2024 (Second Saturday in May)
  • National Train Day - May 11, 2024 (Held on the Saturday closest to May 10th)
  • National Twilight Zone Day - May 11
  • National Windmill Day - May 11, 2024 (Second Saturday in May)
  • Stay Up All Night - May 11, 2024 (Second Saturday in May)
  • Sun Awareness Day - May 11, 2024 (Second Saturday in May)
  • World Belly Dance Day - May 11, 2024 (Second Saturday in May)
  • World Buckfast Day - May 11, 2024 (Second Saturday in May)
  • World Ego Awareness Day - May 11
  • World Fair Trade Day - May 11, 2024 (Second Saturday in May)
  • International Awareness Day - May 12
  • International Myalgic Encephalomyelitis / Chronic Fatigue Syndrome Awareness Day - May 12
  • International Nurses Day - May 12
  • Limerick Day - May 12
  • Mother's At the Wall Day - May 12, 2024 (Always Mother's Day)
  • Mother's Day - May 12, 2024 (Second Sunday in May)
  • National Fibromyalgia Awareness Day - May 12
  • National Hospital Day - May 12
  • National Nutty Fudge Day - May 12
  • National Odometer Day - May 12 
  • National Veal Ban Action Day - May 12, 2024 (Second Sunday in May)
  • Children of Fallen Patriots Day - May 13 
  • Cough Drop Day - May 13
  • Frog Jumping Day - May 13
  • IEEE Global Engineering the Future Day - May 13
  • International Hummus Day - May 13
  • National Apple Pie Day - May 13
  • National Fruit Cocktail Day - May 13
  • National Leprechaun Day - May 13
  • National Women's Check-up Day - May 13, 2024 (Monday following Mother's Day
  • Top Gun Day - May 13
  • Tulip Day - May 13
  • World Cocktail Day - May 13
  • International Dylan Thomas Day - May 14 
  • National Buttermilk Biscuit Day - May 14
  • National Chicken Dance Day - May 14
  • Primary Election Day in West Virginia - May 14, 2024
  • Sex Differences in Health Awareness Day - May 14, 2024 (Tuesday of National Women's Health Week)
  • Shades Day - May 14
  • The Stars and Stripes Forever Day - May 14
  • Underground America Day - May 14
  • Bring Flowers to Someone Day - May 15
  • Buddha Day - May 15, 2024
  • Dinosaur Day - May 15, and June 1
  • Emergency Medical Services Day - May 15, 2024 (Third Wednesday in May)
  • Hyperemisis Gravidarum Awareness Day - May 15
  • International Conscientious Objector Day - May 15
  • International Day of Families - May 15
  • International Kangaroo Care Awareness Day - May 15
  • International MPS Awareness Day - May 15
  • National Chocolate Chip Day - May 15
  • National Employee Health and Fitness Day - May 15, 2024 (Third Wednesday in May)
  • National Juice Slush Day - May 15, 2024 (Third Wednesday in May)
  • National Nylon Stockings Day - May 15
  • National Safety Dose Day - May 15
  • National Senior Fraud Awareness Day - May 15
  • National Stockings Day - May 15
  • National Tuberous Sclerosis Day - May 15
  • Peace Officers Memorial Day - May 15
  • Relive Your Past by Listening to the First Music You Ever Bought No Matter What It Was no Excuses Day - May 15
  • Straw Hat Day - May 15
  • TSC Global Awareness Day (Tuberous Sclerosis Complex) - May 15
  • Turn Beauty Inside Out Day - May 15, 2024 (Third Wednesday in May)
  • VBF Day of Awareness - May 15
  • Biographer's Day - May 16
  • Brown Bag It Thursday - May 16, 2024 (Third Thursday in May)
  • Global Accessibility Awareness Day - May 16, 2024 (Third Thursday in May)
  • International Pickle Day - May 16
  • Love a Tree Day - May 16
  • National Aperitif Day - May 16, 2024 (Third Thursday in May)
  • National Coquilles St. Jacques Day - May 16
  • National Mimosa Day - May 16
  • National Notebook Day - May 16, 2024 (Third Thursday in May)
  • National Piercing Day - May 16
  • National Sea Monkey Day - May 16
  • Nickel Day - May 16
  • Wear Purple for Peace Day - May 16
  • Endangered Species Day - May 17, 2024 (Third Friday in May)
  • International Child Helpline Day - May 17
  • International Day Against Homophobia, Transphobia, and Biphobia - May 17
  • International Defense Transportation Day - May 17, 2024 (Third Friday in May)
  • International Virtual Assistants Day - May 17, 2024 (Third Friday in May)
  • NASCAR Day - May 17, 2024 (Third Friday in May)
  • National Bike to Work Day - May 17, 2024 (Third Friday in May)
  • National Cherry Cobbler Day - May 17
  • National Defense Transportation Day - May 17, 2024 (Third Friday in May)
  • National Mushroom Hunting Day - May 17
  • National Pack Rat Day - May 17
  • National Pizza Party Day - May 17, 2024 (Third Friday in May)
  • National Walnut Day - May 17
  • O. Henry Pun-Off Day - May 17, 2024 (Third Friday in May)
  • Pinot Grigio Day - May 17
  • World Hypertension Day - May 17
  • World Information Society Day - May 17
  • World Neurofibromatosis Day (NF Day) - May 17
  • World Telecommunication and Information Society Day - May 17
  • World Telecommunication Day - May 17
  • Armed Forces Day - May 18, 2024 (Third Saturday in May)
  • Astronomy Day - Spring - May 18, 2024 (Saturday from Mid-April to Mid-May)
  • Culture Freedom Day - May 18, 2024 (Third Saturday in May)
  • Do Dah Day (Salute to Silliness) - May 18, 2024 (Third Saturday in May)
  • HIV Vaccine Awareness Day - May 18
  • I Love Reese's Day - May 18
  • International Museum Day - May 18
  • Jamestown Day - May 18, 2024
  • Mother Whistler Day - May 18
  • National Cheese Souffle Day - May 18
  • National Learn to Swim Day - May 18, 2024 (Third Saturday of May - week before Memorial Day)
  • National Museum Day - May 18 
  • National No Dirty Dishes Day - May 18 
  • National River Cleanup Day - May 18, 2024 (Third Saturday in May)
  • National Visit Your Relatives Day - May 18
  • Plant a Lemon Tree Day - May 18, 2024 (Third Saturday in May)
  • Preakness - May 18, 2024 (Third Saturday in May)
  • Send an Electronic Greeting Card Day - May 18
  • Spring Astronomy Day - May 18, 2024
  • World Aids Vaccine Day - May 18
  • World Fiddle Day - May 18, 2024 (Third Saturday in May)
  • World Whiskey Day - May 18, 2024 (Third Saturday in May)
  • Bay to Breakers Race in San Francisco, CA - May 19, 2024
  • Boys Club Day - May 19
  • Celebrate Your Elected Officials Day - May 19
  • Hepatitis Testing Day - May 19
  • Malcolm X Day - May 19
  • May Ray Day - May 19
  • National Asian and Pacific Islander HIV/AIDS Awareness Day - May 19
  • National Devil's Food Cake Day - May 19
  • National Ride a Unicycle Day - May 19, 2024 (Sunday of the 3rd Full Week in May)
  • Pentecost (also known as Whitsunday or Whit Sunday) - May 19, 2024
  • Plant Something Day - May 19
  • Stepmother's Day - May 19, 2024 (The Sunday after Mother's Day)
  • Whit Sunday (also known as Pentecost or Whitsunday) - May 19, 2024
  • World Baking Day - May 19, 2024 (Third Sunday in May)
  • World IBD Day - May 19
  • Eliza Doolittle Day - May 20
  • Emancipation Day (Florida) - May 20
  • Everybody Draw Mohammed Day - May 20
  • Flower Day - May 20
  • International Clinical Trials Day - May 20
  • Josephine Baker Day - May 20
  • National Be a Millionaire Day - May 20
  • National Quiche Lorraine Day - May 20
  • National Rescue Dog Day - May 20
  • Pentecost Monday (also known as Whit Monday) - May 20, 2024
  • Pick Strawberries Day - May 20
  • Reduce Your Lawn Day - May 20, 2024
  • Supply Chain Professional Day - May 20, 2024 (Third Monday in May)
  • Victoria Day - May 20, 2024 (Monday Prior to May 25th)
  • Weights and Measure Day - May 20
  • Whit Monday (also known as Pentecost Monday) - May 20, 2024
  • World Autoimmune Arthritis Day - May 20
  • World Bee Day - May 20
  • World Metrology Day - May 20
  • American Red Cross Founder's Day - May 21
  • End of the World or Rapture Party Day - May 21
  • I Need a Patch for That Day - May 21
  • International Tea Day - May 21
  • National Memo Day - May 21
  • National Strawberries and Cream Day - May 21
  • National Waiters and Waitresses Day - May 21
  • Sister Maria Hummel Day - May 21
  • World Day for Cultural Diversity for Dialogue and Development - May 21
  • Bitcoin Pizza Day - May 22
  • Canadian Immigrants Day - May 22
  • Emergency Medical Services for Children Day - May 22, 2024 (Wednesday of EMS Week)
  • Harvey Milk Day (California) - May 22
  • International Day for Biological Diversity - May 22
  • National Buy a Musical Instrument Day - May 22
  • National Maritime Day - May 22
  • National Solitaire Day - May 22
  • National Vanilla Pudding Day - May 22
  • Sherlock Holmes Day - May 22
  • World Goth Day - May 22
  • World Orienteering Day - May 22, 2024 (Fourth Wednesday in May)
  • Day of Vesak - May 23, 2024
  • Declaration of the Bab Day (Bahai Faith) - May 23
  • Eat More Fruits & Vegetables Day - May 23, 2024 (Thursday of Memorial Day Week)
  • International Day to End Obstetric Fistula - May 23
  • International Turtle Day - May 23
  • Lucky Penny Day - May 23
  • National Taffy Day - May 23
  • World Crohn's and Colitis Day - May 23
  • World Turtle Day - May 23
  • Asparagus Day - May 24
  • Aviation Maintenance Technician Day - May 24
  • Brother's Day - May 24
  • Carb Day - May 24, 2024 (Friday before the Indy 500 Race)
  • Don't Fry Day - May 24, 2024 (Friday Before Memorial Day)
  • International Heritage Breeds Day - May 25, 2024 (Saturday of Third Full Week in May)
  • International Tiara Day - May 24
  • International Women's Day for Peace and Disarmament - May 24
  • National Cooler Day - May 24, 2024 (Friday Before Memorial Day)
  • National Death Busters Day - May 24, 2024 (Friday Before Memorial Day)
  • National Escargot Day - May 24
  • National Heat Safety Awareness Day - May 24, 2024 (Fourth Friday in May)
  • National Road Trip Day - May 24, 2024 (Friday Before Memorial Day Weekend)
  • National Title Track Day - May 24, 2024 (Fourth Friday in May)
  • Scavenger Hunt Day - May 24
  • World Schizophrenia Awareness Day - May 24
  • African Liberation Day - May 25
  • Amateur Radio Military Appreciation Day (ARMAD) - May 25, 2024 (Saturday of Memorial Day Weekend)
  • Geek Pride Day - May 25
  • Heat Safety Awareness Day - May 24, 2024 (Fourth Friday in May)
  • International Jazz Day - May 25, 2024 (Saturday of Memorial Day Weekend) Also observed on April 30 each year
  • Julia Pierpont Day - May 25, 2024 (Fourth Saturday in May)
  • National Brown-Bag-It Day - May 25
  • National Heritage Breeds Day - May 25, 2024 (Saturday of Third Full Week in May)
  • National Italian Beef Day - May 25, 2024 (Fourth Saturday in May)
  • National Missing Children's Day - May 25
  • National Tap Dance Day - May 25
  • National Wig Out Day - May 25, 2024 (Ten Days Before the First Monday in June)
  • National Wine Day - May 25
  • Towel Day - May 25
  • Indianapolis 500 - May 26, 2024 (Sunday of Memorial Day weekend)
  • National Blueberry Cheesecake Day - May 26
  • National Cherry Dessert Day - May 26
  • National Paper Airplane Day - May 26
  • Neighbor Day - May 26, 2024 (Sunday before Memorial Day)
  • Sally Ride Day - May 26
  • Trinity Sunday - May 26, 2024
  • World Dracula Day - May 26
  • World Lindy Hop Day - May 26
  • World Red Head Day - May 26
  • Cellophane Tape Day - May 27
  • Jefferson Davis Birthday - May 27, 2024 (State of Mississippi)
  • Memorial Day - May 27, 2024 (Last Monday in May)
  • National Grape Popsicle Day - May 27
  • National Gray Day - May 27
  • National Hamburger Day - May 27, 2024 (Always Memorial Day, also May 28, July 28 and December 21)
  • Nothing to Fear Day - May 27
  • Old Time Player Piano Day - May 27
  • Prayer for Peace, Memorial Day - May 27, 2024 (Last Monday in May / Same Day as Memorial Day)
  • Sunscreen Protection Day - May 27
  • Amnesty International Day - May 28
  • International Hamburger Day - May 28
  • Menstrual Hygiene Day - May 28
  • National Brisket Day - May 28
  • National Hamburger Day 
  • Slugs Return From Capistrano Day - May 28
  • Whooping Crane Day - May 28
  • Composting Day - May 29
  • End of the Middle Ages Day - May 29
  • International Day of United Nations Peacekeepers - May 29
  • Learn About Composting Day - May 29
  • National Biscuit Day - May 29
  • National Coq Au Vin Day - May 29
  • National Senior Health & Fitness Day - May 29, 2024 (Last Wednesday in May)
  • Paper Clip Day - May 29
  • Pink Flamingo Day - May 29
  • Put a Pillow on Your Fridge Day - May 29
  • World Digestive Health Day - May 29
  • World Otter Day - May 29, 2024 (Last Wednesday in May)
  • Corpus Christi - May 30, 2024
  • International Hug Your Cat Day - May 30
  • Loomis Day - May 30
  • My Bucket's Got a Hole In It Day - May 30
  • National Creativity Day - May 30
  • National Mint Julep Day - May 30
  • Water a Flower Day - May 30
  • World MS Day (Multiple Sclerosis) - May 30
  • European Neighbors' Day - May 31, 2024 (Last Friday in May)
  • National Autonomous Vehicle Day - May 31
  • National Macaroon Day - May 31
  • National Meditation Day - May 31
  • National Save Your Hearing Day - May 31
  • National Smile Day  May 31
  • National Speak in Complete Sentences Day - May 31
  • Necrotizing Fasciitis Awareness Day - May 31
  • What You Think Upon Grows Day - May 31
  • World No-Tobacco Day - May 31
  • World Parrot Day - May 31

 

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