| National Day | |  |
| Rice Krispie Treat Day | | |
| National Cheeseburger Day | | |
| Air Force Birthday | | |
| National HIV/AIDS and Aging Awareness Day | | |
| Read An Ebook Day | | |
| International Equal Pay Day | | |
| National First Love Day | | |
| World Water Monitoring Day | | |
| National Respect Day | | |
| Independence Day | | |
| The Feast of Saint Januarius (Naples) | | |
| Army Day | | |
| National Gymnastics Day | | |
| International Talk Like a Pirate Day | | |
| National Butterscotch Pudding Day | | |
| National Woman Road Warrior Day | | |
| National Tradesmen Day | | |
| National POW/MIA Recognition Day | | |
| International Grenache Day | | |
| 4 PM Finish Day | | |
| National Concussion Awareness Day | | |
| German World Childrens' Day | | |
| National Fried Rice Day | | |
| National Pepperoni Pizza Day | | |
| National Punch Day | | |
| National String Cheese Day | | |
| Big Whopper Liar Day | | |
| Boys’ and Girls’ Club Day for Kids | | |
| Puppy Mill Awareness Day | | |
| Responsible Dog Ownership Day | | |
| National CleanUp Day | | |
| National Dance Day | | |
| Valentine's Day | | |
| European Heritage Days | | |
| Batman Day | | |
| International Red Panda Day | | |
| International Eat An Apple Day | | |
| National Queso Day | | |
| International Coastal Cleanup Day | | |
| Locate An Old Friend Day | | |
| Independence Day | | |
| International Day of Peace | | |
| Miniature Golf Day | | |
| National Chai Day | | |
| National Pecan Cookie Day | | |
| Wife Appreciation Day | | |
| Swiss Federal Fast | | |
| Founder's Day | | |
| World Gratitude Day | | |
| World Alzheimer’s Day | | |
| Escapology Day | | |
| Independence Day | | |
| American Business Women’s Day | | |
| Car Free Day | | |
| National Centenarian’s Day | | |
| Elephant Appreciation Day | | |
| National Girls’ Night In Day | | |
| Hobbit Day | | |
| National Ice Cream Cone Day | | |
| National Legwear Day | | |
| National White Chocolate Day | | |
| September Equinox | | |
| Emancipation Day | | |
| Rosh Hashana Eve | | |
| South Canterbury Anniversary Day | | |
| Erev Rosh Hashana | | |
| Saint Mauritius' Day | | |
| Federal Fast Monday | | |
| Founder's Day observed | | |
| Mabon | | |
| Chainmail Day | | |
| World Rhino Day | | |
| National Family Day | | |
| International Week Of Happiness At Work | | |
| Dear Diary Day | | |
| Saudi National Day | | |
| Checkers Day | | |
| Celebrate Bisexuality Day | | |
| National Great American Pot Pie Day | | |
| National Snack Stick Day | | |
| National Teal Talk Day | | |
| National Voter Registration Day | | |
| Rosh Hashana | | |
| September Equinox | | |
| Redhead Appreciation Day | | |
| Education Technology Day | | |
| Restless Legs Awareness Day | | |
| Za’atar Day | | |
| International Day Of Sign Languages | | |
| Our Lady of Las Mercedes | | |
| Constitutional Day | | |
| Republic Day | | |
| Independence Day (National Day) | | |
| Armed Forces Day | | |
| Heritage Day | | |
| Anniversary of the failed attack on Lomé | | |
| National Cherries Jubilee Day | | |
| National Punctuation Day | | |
| Schwenkfelder Thanksgiving | | |
| Innergize Day | | |
| National Women’s Health & Fitness Day | | |
| Second day of Rosh Hashana | | |
| New Caledonia Day | | |
| Saint Rupert's Day | | |
| World Bollywood Day | | |
| Bluebird Of Happiness Day | | |
| Lash Stylists’ Day | | |
| Armed Forces Day | | |
| National One-Hit Wonder Day | | |
| National Comic Book Day | | |
| National Lobster Day | | |
| National Tune-Up Day | | |
| National Research Administrator Day | | |
| Math Storytelling Day | | |
| World Maritime Day | | |
| Tzom Gedaliah | | |
| St. Nicholas of Flüe | | |
| Better Breakfast Day | | |
| National Daughter Day | | |
| National Cooking Day | | |
| National Quesadilla Day | | |
| World Pharmacists Day | | |
| National Psychotherapy Day | | |
| Remember Me Thursday | | |
| World Dream Day | | |
| Binge Day | | |
