Thursday
September 18
16 holidays and observances fall on this day.
International Equal Pay Day
International Equal Pay Day on September 18 raises awareness about the gender pay gap and celebrates progress toward equal pay for all.
World Water Monitoring Day
World Water Monitoring Day on September 18 encourages citizens to test and protect local water bodies. Join the global effort for clean water and
Global Company Culture Day
Global Company Culture Day on September 18 celebrates workplace diversity and the vital role of a positive company culture for employee happiness.
National Cheeseburger Day
National Cheeseburger Day is inviting everyone to enjoy a classic cheeseburger and the easy togetherness that comes with it.
National First Love Day
National First Love Day is observed each year on September 18, a gentle celebration of first romances, sweet memories, and the lessons that shape how we love now.
Chiropractic Founders Day
Chiropractic Founders Day on September 18 honors D.D. Palmer's first adjustment in 1895. Learn history, importance, and ways to celebrate this healthcare
National Pawpaw Day
National Pawpaw Day celebrates North America's largest native fruit on the third Thursday of September. Learn history, importance, and how to enjoy
Rice Krispies Treats Day
Celebrate Rice Krispies Treats Day on September 18 with the classic no-bake marshmallow and cereal dessert. Learn history, recipes, and fun ways to enjoy.
National Respect Day
National Respect Day on September 18 encourages empathy and kindness. Discover history, importance, and ways to celebrate respect and inclusion.
Hug A Greeting Card Writer Day
Hug A Greeting Card Writer Day on September 18 honors the wordsmiths behind our favorite cards. Learn history, importance, and ways to celebrate.
U.S. Air Force Day
U.S. Air Force Day on September 18 honors the establishment of the Air Force in 1947 and celebrates the service of Airmen past and present.
National Day of Civic Hacking
National Day of Civic Hacking on September 18 unites people to use technology and innovation for community problem-solving. Learn how to join.
Locate An Old Friend Day
Locate An Old Friend Day on September 18 is a day to reconnect with old friends. Reach out and find those you've lost touch with.
National HIV/AIDS and Aging Awareness Day
National HIV/AIDS and Aging Awareness Day on September 18 focuses on older adults living with HIV, their unique challenges, and the need for
National Report Kickback Fraud Day
National Report Kickback Fraud Day on September 18 raises awareness about kickback fraud and encourages reporting of this form of corruption.
Purple Bra Day
Purple Bra Day on September 18 raises awareness and funds for breast cancer support in Australia. Wear purple to show solidarity with those affected.
Coming up next
Talk Like a Pirate Day
Talk Like a Pirate Day on September 19 is a fun holiday to dress up and speak like a pirate. Celebrate with jokes, costumes, and pirate-themed activities.
International Grenache Day
International Grenache Day is celebrating the Grenache/Garnacha grape with easy tastings, food pairings, and global wine appreciation.
National Meow Like a Pirate Day
Celebrate National Meow Like a Pirate Day on September 19 by dressing up your cat, adopting a cat, and sharing purrfect photos. Find fun ways to celebrate!
Aortic Dissection Awareness Day
Learn the history and importance of Aortic Dissection Awareness Day on September 19. Discover symptoms, survivor stories, and how to get involved.
National Cat DNA Day
National Cat DNA Day is observed every September 19, celebrating feline genetics with simple, practical ways to learn, care, and connect.
National Concussion Awareness Day
National Concussion Awareness Day raises awareness about concussions and traumatic brain injuries. Learn history, importance, and how to observe.
National POW/MIA Recognition Day
National POW/MIA Recognition Day honors prisoners of war and those missing in action. Learn its history, importance, and how to observe this solemn day.
National Tradesmen Day
National Tradesmen Day honors skilled tradespeople who build and maintain America. Celebrate on the third Friday of September.
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