National Days in May 2018

List of Special Days and National Days in May 2018 in United States.

• National Concert Day 2018 is observed on Tuesday, May 1, 2018
• Poem on Your Pillow Day 2018 is observed on Tuesday, May 1, 2018
• World Asthma Day 2018 is observed on Tuesday, May 1, 2018
• Great American Grump Out 2018 is observed on Wednesday, May 2, 2018
• National Anxiety Disorders Screening Day 2018 is observed on Wednesday, May 2, 2018
• Lag BaOmer 2018 will begin in the evening of Wednesday, May 2 and ends in the evening of Thursday, May 3, 2018
• Martin Z. Mollusk Day 2018 is observed on Thursday, May 3, 2018
• National Day of Prayer 2018 is observed on Thursday, May 3, 2018
• National Day of Reason 2018 is observed on Thursday, May 3, 2018
• World Password Day 2018 is observed on Thursday, May 3, 2018
• International Space Day 2018 is observed on Friday, May 4, 2018
• International Tuba Day 2018 is observed on Friday, May 4, 2018
• No Pants Day 2018 is observed on Friday, May 4, 2018
• Beer Pong Day 2018 is observed on Saturday, May 5, 2018
• Bladder Cancer Awareness Day 2018 is observed on Saturday, May 5, 2018
• Childhood Stroke Awareness Day 2018 is observed on Saturday, May 5, 2018
• HerbDay 2018 is observed on Saturday, May 5, 2018
• Free Comic Book Day 2018 is observed on Saturday, May 5, 2018
• Join Hands Day 2018 is observed on Saturday, May 5, 2018
• Kentucky Derby 2018 is observed on Saturday, May 5, 2018
• National Homebrew Day 2018 is observed on Saturday, May 5, 2018
• National Scrapbooking Day 2018 is observed on Saturday, May 5, 2018
• Pilates Day 2018 is observed on Saturday, May 5, 2018
• International Bereaved Mother’s Day 2018 is observed on Sunday, May 6, 2018
• International Permaculture Day 2018 is observed on Sunday, May 6, 2018
• Mayday for Mutts 2018 is observed on Sunday, May 6, 2018
• Motorcycle Mass and Blessing of the Bikes Day 2018 is observed on Sunday, May 6, 2018
• Lemonade Day 2018 is observed on Sunday, May 6, 2018
• National Infertility Survival Day 2018 is observed on Sunday, May 6, 2018
• World Laughter Day 2018 is observed on Sunday, May 6, 2018
• No Homework Day 2018 is observed on Sunday, May 6, 2018
• Great Lakes Awareness Day 2018 is observed on Monday, May 7, 2018
• Melanoma Monday 2018 is observed on Monday, May 7, 2018
• National Meeting Planners Appreciation Day 2018 is observed on Monday, May 7, 2018
• Childhood Depression Awareness Day 2018 is observed on Tuesday, May 8, 2018
• National Teacher Day 2018 is observed on Tuesday, May 8, 2018
• Bike To School Day 2018 is observed on Wednesday, May 9, 2018
• Donate a Day’s Wages to Charity Day 2018 is observed on Wednesday, May 9, 2018
• National Root Canal Appreciation Day 2018 is observed on Wednesday, May 9, 2018
• National Receptionists’ Day 2018 is observed on Wednesday, May 9, 2018
• National School Nurse Day 2018 is observed on Wednesday, May 9, 2018
• National Third Shift Workers Day 2018 is observed on Wednesday, May 9, 2018
• Occupational Safety and Health Professional Day 2018 is observed on Wednesday, May 9, 2018
• Ascension 2018 is observed on Thursday, May 10, 2018
• Make-A-Book Day 2018 is observed on Thursday, May 10, 2018



• National Children’s Mental Health Awareness Day 2018 is observed on Thursday, May 10, 2018
• Fintastic Friday: Giving Sharks a Voice 2018 is observed on Friday, May 11, 2018
• Military Spouse Appreciation Day 2018 is observed on Friday, May 11, 2018
• National Public Gardens Day 2018 is observed on Friday, May 11, 2018
• Provider Appreciation Day 2018 is observed on Friday, May 11, 2018
• American Indian Day 2018 is observed on Saturday, May 12, 2018
• Birthmother’s Day 2018 is observed on Saturday, May 12, 2018
• Brunch for Lunch Day 2018 is observed on Saturday, May 12, 2018
• Cornelia de Lange Syndrome Awareness Day 2018 is observed on Saturday, May 12, 2018
• International Migratory Bird Day 2018 is observed on Saturday, May 12, 2018
• Letter Carrier’s Stamp Out Hunger Food Drive Day 2018 is observed on Saturday, May 12, 2018
• Mother Ocean Day 2018 is observed on Saturday, May 12, 2018
• National Babysitter’s Day 2018 is observed on Saturday, May 12, 2018
• National Animal Disaster Preparedness Day 2018 is observed on Saturday, May 12, 2018
• National Miniature Golf Day 2018 is observed on Saturday, May 12, 2018
• National Train Day 2018 is observed on Saturday, May 12, 2018
• Stay Up All Night Night 2018 is observed on Saturday, May 12, 2018
• Sun Awareness Day 2018 is observed on Saturday, May 12, 2018
• World Belly Dance Day 2018 is observed on Saturday, May 12, 2018
• World Fair Trade Day 2018 is observed on Saturday, May 12, 2018
• Jerusalem Day 2018 in Israel began in the evening of Saturday, May 12 and ends in the evening of Sunday, May 13, 2018
• Mother’s Day 2018 is observed on Sunday, May 13, 2018
• Mothers at the Wall Day 2018 is observed on Sunday, May 13, 2018
• National Apple Pie Day 2018 is observed on Sunday, May 13, 2018
• National Veal Ban Action Day 2018 is observed on Sunday, May 13, 2018
• National Women’s Check-Up Day 2018 is observed on Monday, May 14, 2018
• Dinosaur Day 2018 is observed on Tuesday, May 15, 2018
• Sex Differences in Health Awareness Day 2018 is observed on Tuesday, May 15, 2018
• National Employee Health and Fitness Day 2018 is observed on Wednesday, May 16, 2018
• Turn Beauty Inside Out Day 2018 is observed on Wednesday, May 16, 2018
• Brown Bag It Thursday 2018 is observed on Thursday, May 17, 2018
• Hummus Day 2018 is observed on Thursday, May 17, 2018
• National Apéritif Day 2018 is observed on Thursday, May 17, 2018
• National Notebook Day 2018 is observed on Thursday, May 17, 2018
• Endangered Species Day 2018 is observed on Friday, May 18, 2018
• NASCAR Day 2018 is observed on Friday, May 18, 2018
• International Virtual Assistants Day 2018 is observed on Friday, May 18, 2018
• National Bike to Work Day 2018 is observed on Friday, May 18, 2018
• National Defense Transportation Day 2018 is observed on Friday, May 18, 2018
• O. Henry Pun-off Day 2018 is observed on Friday, May 18, 2018
• National Pizza Party Day 2018 is observed on Friday, May 18, 2018
• Armed Forces Day 2018 is observed on Saturday, May 19, 2018
• Culture Freedom Day 2018 is observed on Saturday, May 19, 2018
• National River Cleanup Day 2018 is observed on Saturday, May 19, 2018
• National Learn to Swim Day 2018 is observed on Saturday, May 19, 2018
• World Whisky Day 2018 is observed on Saturday, May 19, 2018
• Preakness Stakes 2018 is observed on Saturday, May 19, 2018
• Pentecost 2018 is observed on Sunday, May 20, 2018
• Shavuot 2018 began in the evening of Saturday, May 19 and ends in the evening of Monday, May 21, 2018
• World Baking Day 2018 is observed on Sunday, May 20, 2018
• Stepmother’s Day 2018 is observed on Sunday, May 20, 2018
• National Waiters and Waitresses Day 2018 is observed on Monday, May 21, 2018
• Emergency Medical Services for Children Day 2018 is observed on Wednesday, May 23, 2018
• Aviation Maintenance Technician Day 2018 is observed on Thursday, May 24, 2018
• Don’t Fry Day 2018 is observed on Friday, May 25, 2018
• European Neighbours’ Day 2018 is observed on Friday, May 25, 2018
• National Death Busters Day 2018 is observed on Friday, May 25, 2018
• National Heat Awareness Day 2018 is observed on Friday, May 25, 2018
• National Wig Out Day 2018 is observed on Friday, May 25, 2018
• National Title Track Day 2018 is observed on Friday, May 25, 2018
• Amateur Radio Military Appreciation Day 2018 is observed on Saturday, May 26, 2018
• Julia Pierpont Day 2018 is observed on Saturday, May 26, 2018
• Indianapolis 500 2018 is observed on Sunday, May 27, 2018
• Neighbor Day 2018 is observed on Sunday, May 27, 2018
• Trinity Sunday 2018 is observed on Sunday, May 27, 2018
• Memorial Day 2018 is observed on Monday, May 28, 2018
• International Coq Au Vin Day 2018 is observed on Tuesday, May 29, 2018
• National Senior Health and Fitness Day 2018 is observed on Wednesday, May 30, 2018
• World MS Day 2018 is observed on Wednesday, May 30, 2018
• Corpus Christi 2018 is observed on Thursday, May 31, 2018
• Couple Appreciation Day 2018 is observed on Tuesday, May 1, 2018
• CSS Reboot Day 2018 is observed on Tuesday, May 1, 2018
• Executive Coaching Day 2018 is observed on Tuesday, May 1, 2018
• International Workers’ Day 2018 is observed on Tuesday, May 1, 2018
• Global Love Day 2018 is observed on Tuesday, May 1, 2018
• The Start of International Drum Month 2018 is observed on Tuesday, May 1, 2018
• Frequent Flyer Day 2018 is observed on Tuesday, May 1, 2018
• Lei Day 2018 is observed on Tuesday, May 1, 2018
• Law Day 2018 is observed on Tuesday, May 1, 2018
• Loyalty Day 2018 is observed on Tuesday, May 1, 2018
• Keep Kids Alive Drive 25 Day 2018 is observed on Tuesday, May 1, 2018



• National Chocolate Parfait Day 2018 is observed on Tuesday, May 1, 2018
• Mother Goose Day 2018 is observed on Tuesday, May 1, 2018
• May Day 2018 is observed on Tuesday, May 1, 2018
• Phone in Sick Day 2018 is observed on Tuesday, May 1, 2018
• New Homeowners Day 2018 is observed on Tuesday, May 1, 2018
• National Purebred Dog Day 2018 is observed on Tuesday, May 1, 2018
• Silver Star Service Banner Day 2018 is observed on Tuesday, May 1, 2018
• Save the Rhino Day 2018 is observed on Tuesday, May 1, 2018
• School Principals’ Day 2018 is observed on Tuesday, May 1, 2018
• Worthy Wage Day 2018 is observed on Tuesday, May 1, 2018
• The Start of Syringomyelia Awareness Month 2018 is observed on Tuesday, May 1, 2018
• Baby Day 2018 is observed on Wednesday, May 2, 2018
• Brothers and Sisters Day 2018 is observed on Wednesday, May 2, 2018
• International Scurvy Awareness Day 2018 is observed on Wednesday, May 2, 2018
• National Truffle Day 2018 is observed on Wednesday, May 2, 2018
• National Fire Day 2018 is observed on Wednesday, May 2, 2018
• National Play Your Ukulele Day 2018 is observed on Wednesday, May 2, 2018
• World Tuna Day 2018 is observed on Wednesday, May 2, 2018
• Take a Baby to Lunch Day 2018 is observed on Wednesday, May 2, 2018
• Garden Meditation Day 2018 is observed on Thursday, May 3, 2018
• National Specially-abled Pets Day 2018 is observed on Thursday, May 3, 2018
• National Lumpy Rug Day 2018 is observed on Thursday, May 3, 2018
• National Raspberry Popover Day 2018 is observed on Thursday, May 3, 2018
• National Two Different Colored Shoes Day 2018 is observed on Thursday, May 3, 2018
• Public Radio Day 2018 is observed on Thursday, May 3, 2018
• Paranormal Day 2018 is observed on Thursday, May 3, 2018
• Wordsmith Day 2018 is observed on Thursday, May 3, 2018
• Sun Day 2018 is observed on Thursday, May 3, 2018
• World Press Freedom Day 2018 is observed on Thursday, May 3, 2018
• Anti-Bullying Day 2018 is observed on Friday, May 4, 2018
• Bird Day 2018 is observed on Friday, May 4, 2018
• Intergalactic Star Wars Day 2018 is observed on Friday, May 4, 2018
• National Candied Orange Peel Day 2018 is observed on Friday, May 4, 2018
• International Firefighters Day 2018 is observed on Friday, May 4, 2018
• National Orange Juice Day 2018 is observed on Friday, May 4, 2018
• National Weather Observers Day 2018 is observed on Friday, May 4, 2018
• National Kids Fitness Day 2018 is observed on Friday, May 4, 2018
• Renewal Day 2018 is observed on Friday, May 4, 2018
• Respect For Chickens Day 2018 is observed on Friday, May 4, 2018
• Petite and Proud Day 2018 is observed on Friday, May 4, 2018
• World Give Day 2018 is observed on Friday, May 4, 2018
• Cartoonists Day 2018 is observed on Saturday, May 5, 2018
• Cinco de Mayo 2018 is observed on Saturday, May 5, 2018
• International Midwives Day 2018 is observed on Saturday, May 5, 2018
• Museum Lover’s Day 2018 is observed on Saturday, May 5, 2018
• National Chocolate Custard Day 2018 is observed on Saturday, May 5, 2018
• National Hoagie Day 2018 is observed on Saturday, May 5, 2018
• Oyster Day 2018 is observed on Saturday, May 5, 2018
• Revenge of the Fifth 2018 is observed on Saturday, May 5, 2018
• Totally Chipotle Day 2018 is observed on Saturday, May 5, 2018
• International No Diet Day 2018 is observed on Sunday, May 6, 2018
• Joseph Brackett Day 2018 is observed on Sunday, May 6, 2018
• National Beverage Day 2018 is observed on Sunday, May 6, 2018
• National Crêpe Suzette Day 2018 is observed on Sunday, May 6, 2018
• National Nurses Day 2018 is observed on Sunday, May 6, 2018
• National Tourist Appreciation Day 2018 is observed on Sunday, May 6, 2018
• National Barrier Awareness Day 2018 is observed on Monday, May 7, 2018
• National Cosmopolitan Day 2018 is observed on Monday, May 7, 2018
• National Roast Leg of Lamb Day 2018 is observed on Monday, May 7, 2018
• Paste Up Day 2018 is observed on Monday, May 7, 2018
• National Tourism Day 2018 is observed on Monday, May 7, 2018
• Free Trade Day 2018 is observed on Tuesday, May 8, 2018
• Iris Day 2018 is observed on Tuesday, May 8, 2018
• National Coconut Cream Pie Day 2018 is observed on Tuesday, May 8, 2018
• No Socks Day 2018 is observed on Tuesday, May 8, 2018
• National Have a Coke Day 2018 is observed on Tuesday, May 8, 2018
• National Student Nurses Day 2018 is observed on Tuesday, May 8, 2018
• Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War 2018 is observed on Tuesday, May 8, 2018
• Victory in Europe Day 2018 is observed on Tuesday, May 8, 2018
• World Ovarian Cancer Day 2018 is observed on Tuesday, May 8, 2018
• World Red Cross and Red Crescent Day 2018 is observed on Tuesday, May 8, 2018
• Hurray for Buttons Day 2018 is observed on Wednesday, May 9, 2018
• National Butterscotch Brownie Day 2018 is observed on Wednesday, May 9, 2018
• National Moscato Day 2018 is observed on Wednesday, May 9, 2018
• National Lost Sock Memorial Day 2018 is observed on Wednesday, May 9, 2018
• Tear the Tags Off the Mattress Day 2018 is observed on Wednesday, May 9, 2018
• National Clean Up Your Room Day 2018 is observed on Thursday, May 10, 2018
• National Shrimp Day 2018 is observed on Thursday, May 10, 2018
• National Small Business Day 2018 is observed on Thursday, May 10, 2018
• Trust Your Intuition Day 2018 is observed on Thursday, May 10, 2018
• World Lupus Day 2018 is observed on Thursday, May 10, 2018
• Eat What You Want Day 2018 is observed on Friday, May 11, 2018
• Hostess Cupcake Day 2018 is observed on Friday, May 11, 2018
• National Twilight Zone Day 2018 is observed on Friday, May 11, 2018
• International Awareness Day 2018 is observed on Saturday, May 12, 2018
• International Chronic Fatigue Syndrome Awareness Day 2018 is observed on Saturday, May 12, 2018
• International Nurses’ Day 2018 is observed on Saturday, May 12, 2018
• Limerick Day 2018 is observed on Saturday, May 12, 2018
• National Fibromyalgia Awareness Day 2018 is observed on Saturday, May 12, 2018
• Odometer Day 2018 is observed on Saturday, May 12, 2018
• National Nutty Fudge Day 2018 is observed on Saturday, May 12, 2018
• Cough Drop Day 2018 is observed on Sunday, May 13, 2018
• Frog Jumping Day 2018 is observed on Sunday, May 13, 2018
• International Hummus Day 2018 is observed on Sunday, May 13, 2018
• National Fruit Cocktail Day 2018 is observed on Sunday, May 13, 2018
• National Leprechaun Day 2018 is observed on Sunday, May 13, 2018
• Top Gun Day 2018 is observed on Sunday, May 13, 2018
• Tulip Day 2018 is observed on Sunday, May 13, 2018
• World Cocktail Day 2018 is observed on Sunday, May 13, 2018
• International Dylan Thomas Day 2018 is observed on Monday, May 14, 2018
• National Buttermilk Biscuit Day 2018 is observed on Monday, May 14, 2018
• National Dance Like a Chicken Day 2018 is observed on Monday, May 14, 2018
• The Stars and Stripes Forever Day 2018 is observed on Monday, May 14, 2018
• National Underground America Day 2018 is observed on Monday, May 14, 2018
• HG Awareness Day 2018 is observed on Tuesday, May 15, 2018
• International Conscientious Objectors Day 2018 is observed on Tuesday, May 15, 2018
• International Day of Families 2018 is observed on Tuesday, May 15, 2018
• International MPS Awareness Day 2018 is observed on Tuesday, May 15, 2018
• National Safety Dose Day 2018 is observed on Tuesday, May 15, 2018
• National Tuberous Sclerosis Day 2018 is observed on Tuesday, May 15, 2018
• National Chocolate Chip Day 2018 is observed on Tuesday, May 15, 2018
• Peace Officers Memorial Day 2018 is observed on Tuesday, May 15, 2018
• Relive Your Past By Listening to the First Music You Ever Bought No Matter What It Was No Excuses Day 2018 is observed on Tuesday, May 15, 2018
• Nylon Stockings Day 2018 is observed on Tuesday, May 15, 2018
• Straw Hat Day 2018 is observed on Tuesday, May 15, 2018
• Biographer’s Day 2018 is observed on Wednesday, May 16, 2018
• Love a Tree Day 2018 is observed on Wednesday, May 16, 2018
• National Coquilles St. Jacques Day 2018 is observed on Wednesday, May 16, 2018
• National Mimosa Day 2018 is observed on Wednesday, May 16, 2018
• National Piercing Day 2018 is observed on Wednesday, May 16, 2018
• National Sea Monkey Day 2018 is observed on Wednesday, May 16, 2018
• National Wear Purple for Peace Day 2018 is observed on Wednesday, May 16, 2018
• International Day Against Homophobia, Biphobia and Transphobia 2018 is observed on Thursday, May 17, 2018
• National Cherry Cobbler Day 2018 is observed on Thursday, May 17, 2018
• National Mushroom Hunting Day 2018 is observed on Thursday, May 17, 2018
• National Walnut Day 2018 is observed on Thursday, May 17, 2018
• National Pack Rat Day 2018 is observed on Thursday, May 17, 2018
• World Hypertension Day 2018 is observed on Thursday, May 17, 2018
• World Neurofibromatosis Awareness Day 2018 is observed on Thursday, May 17, 2018
• World Telecommunication and Information Society Day 2018 is observed on Thursday, May 17, 2018
• HIV Vaccine Awareness Day 2018 is observed on Friday, May 18, 2018
• I Love Reese’s Day 2018 is observed on Friday, May 18, 2018
• International Museum Day 2018 is observed on Friday, May 18, 2018
• Mother Whistler Day 2018 is observed on Friday, May 18, 2018
• National Cheese Soufflé Day 2018 is observed on Friday, May 18, 2018
• National No Dirty Dishes Day 2018 is observed on Friday, May 18, 2018
• National Visit Your Relatives Day 2018 is observed on Friday, May 18, 2018
• Send an Electronic Greeting Card Day 2018 is observed on Friday, May 18, 2018
• World AIDS Vaccine Day 2018 is observed on Friday, May 18, 2018
• Boy’s Club Day 2018 is observed on Saturday, May 19, 2018
• Celebrate Your Elected Officials Day 2018 is observed on Saturday, May 19, 2018
• May Ray Day 2018 is observed on Saturday, May 19, 2018
• National Asian and Pacific Islander HIV/AIDS Awareness Day 2018 is observed on Saturday, May 19, 2018
• National Devil’s Food Cake Day 2018 is observed on Saturday, May 19, 2018
• National Hepatitis Testing Day 2018 is observed on Saturday, May 19, 2018
• National Frog Jumping Jubilee Day 2018 is observed on Saturday, May 19, 2018
• World IBD Day 2018 is observed on Saturday, May 19, 2018
• Be a Millionaire Day 2018 is observed on Sunday, May 20, 2018
• Eliza Doolittle Day 2018 is observed on Sunday, May 20, 2018
• Flower Day 2018 is observed on Sunday, May 20, 2018
• Pick Strawberries Day 2018 is observed on Sunday, May 20, 2018
• National Quiche Lorraine Day 2018 is observed on Sunday, May 20, 2018
• Weights and Measures Day 2018 is observed on Sunday, May 20, 2018
• World Autoimmune Arthritis Day 2018 is observed on Sunday, May 20, 2018
• American Red Cross Founder’s Day 2018 is observed on Monday, May 21, 2018
• I Need a Patch for That Day 2018 is observed on Monday, May 21, 2018
• National Memo Day 2018 is observed on Monday, May 21, 2018
• National Strawberries and Cream Day 2018 is observed on Monday, May 21, 2018
• Rapture Party Day 2018 is observed on Monday, May 21, 2018
• Sister Maria Hummel Day 2018 is observed on Monday, May 21, 2018
• World Day for Cultural Diversity for Dialogue and Development 2018 is observed on Monday, May 21, 2018
• Canadian Immigrants Day 2018 is observed on Tuesday, May 22, 2018
• Harvey Milk Day 2018 is observed on Tuesday, May 22, 2018
• International Day for Biological Diversity 2018 is observed on Tuesday, May 22, 2018
• National Vanilla Pudding Day 2018 is observed on Tuesday, May 22, 2018
• National Maritime Day 2018 is observed on Tuesday, May 22, 2018
• National Buy a Musical Instrument Day 2018 is observed on Tuesday, May 22, 2018
• Sherlock Holmes Day 2018 is observed on Tuesday, May 22, 2018
• World Goth Day 2018 is observed on Tuesday, May 22, 2018
• Declaration of the Bab Day 2018 is observed on Wednesday, May 23, 2018
• International Day to End Obstetric Fistula 2018 is observed on Wednesday, May 23, 2018
• National Taffy Day 2018 is observed on Wednesday, May 23, 2018
• Lucky Penny Day 2018 is observed on Wednesday, May 23, 2018
• World Crohn’s and Colitis Day 2018 is observed on Wednesday, May 23, 2018
• World Turtle Day 2018 is observed on Wednesday, May 23, 2018
• Asparagus Day 2018 is observed on Thursday, May 24, 2018
• Brother’s Day 2018 is observed on Thursday, May 24, 2018
• International Tiara Day 2018 is observed on Thursday, May 24, 2018
• Scavenger Hunt Day 2018 is observed on Thursday, May 24, 2018
• National Escargot Day 2018 is observed on Thursday, May 24, 2018
• Geek Pride Day 2018 is observed on Friday, May 25, 2018
• National Brown-Bag-It Day 2018 is observed on Friday, May 25, 2018
• National Missing Children’s Day 2018 is observed on Friday, May 25, 2018
• National Tap Dance Day 2018 is observed on Friday, May 25, 2018
• Towel Day 2018 is observed on Friday, May 25, 2018
• National Wine Day 2018 is observed on Friday, May 25, 2018
• International Jazz Day 2018 is observed on Saturday, May 26, 2018
• National Blueberry Cheesecake Day 2018 is observed on Saturday, May 26, 2018
• National Paper Airplane Day 2018 is observed on Saturday, May 26, 2018
• National Cherry Dessert Day 2018 is observed on Saturday, May 26, 2018
• National Grey Day 2018 is observed on Saturday, May 26, 2018
• World Redhead Day 2018 is observed on Saturday, May 26, 2018
• Sally Ride Day 2018 is observed on Saturday, May 26, 2018
• World Lindy Hop Day 2018 is observed on Saturday, May 26, 2018
• World Dracula Day 2018 is observed on Saturday, May 26, 2018
• Cellophane Tape Day 2018 is observed on Sunday, May 27, 2018
• National Grape Popsicle Day 2018 is observed on Sunday, May 27, 2018
• Nothing To Fear Day 2018 is observed on Sunday, May 27, 2018
• Old-Time Player Piano Day 2018 is observed on Sunday, May 27, 2018
• Sunscreen Protection Day 2018 is observed on Sunday, May 27, 2018
• Amnesty International Day 2018 is observed on Monday, May 28, 2018
• International Hamburger Day 2018 is observed on Monday, May 28, 2018
• Slugs Return From Capistrano Day 2018 is observed on Monday, May 28, 2018
• National Brisket Day 2018 is observed on Monday, May 28, 2018
• Ascension of Bahá’u’lláh 2018 is observed on Tuesday, May 29, 2018
• End of the Middle Ages Day 2018 is observed on Tuesday, May 29, 2018
• International Day of United Nations Peacekeepers 2018 is observed on Tuesday, May 29, 2018
• Learn About Composting Day 2018 is observed on Tuesday, May 29, 2018
• Paper Clip Day 2018 is observed on Tuesday, May 29, 2018
• National Biscuit Day 2018 is observed on Tuesday, May 29, 2018
• World Digestive Health Day 2018 is observed on Tuesday, May 29, 2018
• Put a Pillow on Your Fridge Day 2018 is observed on Tuesday, May 29, 2018
• Loomis Day 2018 is observed on Wednesday, May 30, 2018
• My Bucket’s Got A Hole In It Day 2018 is observed on Wednesday, May 30, 2018
• Water a Flower Day 2018 is observed on Wednesday, May 30, 2018
• National Mint Julep Day 2018 is observed on Wednesday, May 30, 2018
• National Macaroon Day 2018 is observed on Thursday, May 31, 2018
• National Meditation Day 2018 is observed on Thursday, May 31, 2018
• Save Your Hearing Day 2018 is observed on Thursday, May 31, 2018
• Necrotizing Fasciitis Awareness Day 2018 is observed on Thursday, May 31, 2018
• Speak in Complete Sentences Day 2018 is observed on Thursday, May 31, 2018
• What You Think Upon Grows Day 2018 is observed on Thursday, May 31, 2018
• World No Tobacco Day 2018 is observed on Thursday, May 31, 2018

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