| Birthday of Crown Prince Tupouto'a-'Ulukalala | |  |
| National Hero Day | |  |
| International Country Music Day | |  |
| Day of Melilla | |  |
| National Apple Dumpling Day | |  |
| National Monte Cristo Day | |  |
| Teachers' Day | |  |
| Constitution Day and Citizenship Day | |  |
| National Table Shuffleboard Day | |  |
| World Patient Safety Day | |  |
| 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 | |  |