| Culture and Literacy Day | |  |
| The Battle of Pichincha | |  |
| Independence Day | |  |
| National Aviation Maintenance Technician Day | |  |
| Brother’s Day | |  |
| National Scavenger Hunt Day | |  |
| National Escargot Day | |  |
| Commonwealth Day | |  |
| Saints Cyril and Methodius' Day | |  |
| International Tiara Day | |  |
| National Asparagus Day | |  |
| National Day/May 1810 Revolution | |  |
| Independence Day | |  |
| Liberation and Resistance Day | |  |
| Sing Out Day | |  |
| Towel Day | |  |
| National Missing Children's Day | |  |
| National Wine Day | |  |
| National Tap Dance Day | |  |
| National Brown-Bag It Day | |  |
| Mother's Day | |  |
| Carpet Day | |  |
| Dniester Day | |  |
| Cultural Workers and Folk Artists Day | |  |
| Kiev Day | |  |
| Africa Day | |  |
| Geek Pride Day | |  |
| Independence Day | |  |
| National Sorry Day | |  |
| World Lindy Hop Day | |  |
| National Blueberry Cheesecake Day | |  |
| Spring Bank Holiday | |  |
| Day off for Commonwealth Day | |  |
| Memorial Day | |  |
| Jefferson Davis' Birthday | |  |
| Yom Yerushalayim (Jerusalem Day) | |  |
| Late May Bank Holiday | |  |
| Mother's Day | |  |
| Africa Day | |  |
| Savitri Puja | |  |
| National Paper Airplane Day | |  |
| World Dracula Day | |  |
| Sun Screen Day | |  |
| National Cellophane Tape Day | |  |
| National Grape Popsicle Day | |  |
| Mother's Day | |  |
| Children's Day | |  |
| Republic Day | |  |
| Hamburger Day | |  |
| Derg Downfall Day | |  |
| National Brisket Day | |  |
| National Senior Health & Fitness Day | |  |
| National Flip Flop Day | |  |
| Menstrual Hygiene Day | |  |
| Amnesty International Day | |  |
| International Day of United Nations Peacekeepers | |  |
| Put a Pillow on Your Fridge Day | |  |
| National Paperclip Day | |  |
| National Coq Au Vin Day | |  |
| Ascension Day | |  |
| Father's Day | |  |
| Orthodox Ascension Day | |  |
| National Biscuit Day | |  |
| International Everest Day | |  |
| Learn About Composting Day | |  |
| Statehood Day | |  |
| Anguilla Day | |  |
| Day of the Canary Islands | |  |
| National Creativity Day | |  |
| National Water a Flower Day | |  |
| National Hole In My Bucket Day | |  |
| National Mint Julep Day | |  |
| Loomis Day | |  |
| National Heat Awareness Day | |  |
| Mother's Day | |  |
| Indian Arrival Day | |  |
| National Heroes Day | |  |
| Bermuda Day | |  |
| Harvest Festival | |  |
| Martyrdom of Guru Arjan Dev Sahib | |  |