| January |
| 1/1 | First Foot Day, Z Day |
| 1/2 | Run Up the Flagpole and See if Anybody Salutes It Day |
| 1/3 | Festival of Sleep |
| 1/4 | Trivia Day, Humiliation Day |
| 1/5 | Bird Day |
| 1/6 | Bean Day |
| 1/7 | Old Rock Day |
| 1/8 | National JoyGerm Day, Man Watcher's Day |
| 1/9 | Play God Day |
| 1/10 | Peculiar People Day |
| 1/11 | National Step in a Puddle and Splash Your Friend Day |
| 1/12 | Feast of Fabulous Wild Men |
| 1/13 | Make Your Dream Come True Day, Blame Someone Else Day |
| 1/14 | National Dress Up Your Pet Day |
| 1/15 | Hat Day |
| 1/16 | Hot and Spicy Food International Day, National Nothing Day |
| 1/17 | Blessing of the Animals at the Cathedral Day |
| 1/18 | Winnie the Pooh Day |
| 1/19 | National Popcorn Day |
| 1/20 | National Buttercrunch Day |
| 1/21 | National Hugging Day |
| 1/22 | National Answer Your Cat's Question Day, National Blonde Brownie Day |
| 1/23 | National Handwriting Day, National Pie Day, Measure Your Feet Day |
| 1/24 | Eskimo Pie Patent Day |
| 1/25 | Opposite Day |
| 1/26 | Australia Day |
| 1/27 | Punch the Clock Day, Thomas Crapper Day |
| 1/28 | National Kazoo Day, Clash Day, Rattlesnake Round-Up Day |
| 1/29 | National Cornchip Day |
| 1/30 | Escape Day |
| 1/31 | National Popcorn Day, Child Labor Day |
| February |
| 2/1 | Serpent Day |
| 2/2 | Purification Day |
| 2/3 | Cordova Ice Worm Day |
| 2/4 | Create A Vacuum Day |
| 2/5 | Disaster Day |
| 2/6 | Lame Duck Day |
| 2/7 | Charles Dickens Day |
| 2/8 | Kite Flying Day |
| 2/9 | Toothache Day |
| 2/10 | Umbrella Day |
| 2/11 | White Tee-Shirt Day, Don't Cry Over Spilled Milk Day, Check-Out-a-Book Day |
| 2/12 | National Plum Pudding Day |
| 2/13 | Get A Different Name Day, Dream Your Sweet Day |
| 2/14 | Ferris Wheel Day, National Heart to Heart Day |
| 2/15 | National Gum Drop Day |
| 2/16 | Do A Grouch A Favor Day, Milk-a-Cow Day |
| 2/17 | Champion Crab Races Day |
| 2/18 | National Battery Day |
| 2/19 | National Chocolate Mint Day |
| 2/20 | Hoodie Hoo Day |
| 2/21 | Card Reading Day |
| 2/22 | Be Humble Day |
| 2/23 | International Dog Biscuit Appreciation Day |
| 2/24 | National Tortilla Chip Day |
| 2/25 | Pistol Patent Day (Samuel Colt) |
| 2/26 | National Pistachio Day |
| 2/27 | International Polar Bear Day |
| 2/28 | Public Sleeping Day |
| 2/1 | National Surf and Turf Day |
| March |
| 3/1 | National Pig Day, Peanut Butter Lover's Day |
| 3/2 | Old Stuff Day |
| 3/3 | I Want You To Be Happy Day, Peach Blossom Day, National Anthem Day |
| 3/4 | Holy Experiment Day |
| 3/5 | Multiple Personalities Day |
| 3/6 | National Frozen Food Day |
| 3/7 | National Crown Roast Of Pork Day |
| 3/8 | Be Nasty Day |
| 3/9 | Panic Day |
| 3/10 | Festival Of Life In The Cracks |
| 3/11 | Johnny Appleseed Day, Worship of Tools Day |
| 3/12 | Alfred Hitchcock Day |
| 3/13 | Jewel Day |
| 3/14 | National Potato Chip Day |
| 3/15 | Buzzard's Day, Everything You Think Is Wrong Day |
| 3/16 | Everything You Do Is Right Day |
| 3/17 | Submarine Day |
| 3/18 | Supreme Sacrifice Day |
| 3/19 | Poultry Day |
| 3/20 | Proposal Day, Festival Of Extraterrestrial Abductions |
| 3/21 | Fragrance Day |
| 3/22 | National Goof-off Day |
| 3/23 | National Organize Your Home Office Day, National Chip and Dip Day |
| 3/24 | National Chocolate Covered Raisins Day |
| 3/25 | Pecan Day, Waffle Day |
| 3/26 | Make Up Your Own Holiday Day, Spinach Festival Day |
| 3/27 | National "Joe" Day |
| 3/28 | Something On A Stick Day |
| 3/29 | Festival Of Smoke and Mirrors |
| 3/30 | I Am In Control Day |
| 3/31 | Bunsen Burner Day, National Clams On The Half Shell Day |
| April |
| 4/1 | One Cent Day |
| 4/2 | National Peanut Butter and Jelly Day |
| 4/3 | Tweed Day, Don't Go To Work Unless It's Fun Day |
| 4/4 | Tell-A-Lie Day |
| 4/5 | Go For Broke Day |
| 4/6 | Sorry Charlie Day |
| 4/7 | No Housework Day |
| 4/8 | All Is Ours Day |
| 4/9 | Winston Churchill Day, Name Yourself Day |
| 4/10 | Golfers' Day |
| 4/11 | Eight-Track Tape Day |
| 4/12 | Look Up At The Sky Day |
| 4/13 | Blame Somebody Else Day |
| 4/14 | National Pecan Day |
| 4/15 | Rubber Eraser Day |
| 4/16 | National Stress Awareness Day, National Eggs Benedict Day |
| 4/17 | National Cheeseball Day |
| 4/18 | International Jugglers Day |
| 4/19 | Garlic Day |
| 4/20 | Look Alike Day |
| 4/21 | Kindergarten Day |
| 4/22 | National Jelly Bean Day |
| 4/23 | Read Me Day, World Laboratory Animal Day |
| 4/24 | National Pigs In A Blanket Day |
| 4/25 | National Zucchini Bread Day |
| 4/26 | Richter Scale Day, National Pretzel Day |
| 4/27 | Tell A Story Day |
| 4/28 | Great Poetry Reading Day, Kiss-Your-Mate Day |
| 4/29 | National Shrimp Scampi Day |
| 4/30 | National Honesty Day |
| May |
| 5/1 | Mother Goose Day, Save The Rhino Day |
| 5/2 | Fire Day |
| 5/3 | Lumpy Rug Day |
| 5/4 | National Candied Orange Peel Day |
| 5/5 | National Hoagie Day |
| 5/6 | Beverage Day |
| 5/7 | International Tuba Day, Paste Up Day |
| 5/8 | No Socks Day, Have A Coke Day |
| 5/9 | Lost Sock Memorial Day |
| 5/10 | Clean Up Your Room Day |
| 5/11 | Eat What You Want Day, Twilight Zone Day |
| 5/12 | Limerick Day |
| 5/13 | Leprechaun Day |
| 5/14 | National Dance Like A Chicken Day |
| 5/15 | National Chocolate Chip Day |
| 5/16 | Wear Purple For Peace Day |
| 5/17 | Pack Rat Day |
| 5/18 | International Museum Day, Visit Your Relatives Day |
| 5/19 | Frog Jumping Jubilee Day |
| 5/20 | Eliza Doolittle Day |
| 5/21 | National Memo Day, National Waitresses/Waiters Day |
| 5/22 | Buy-A-Musical-Instrument Day |
| 5/23 | Penny Day |
| 5/24 | National Escargot Day |
| 5/25 | National Tap Dance Day |
| 5/26 | Grey Day |
| 5/27 | Body Painting Arts Festival |
| 5/28 | National Hamburger Day |
| 5/29 | End Of The Middle Ages Day |
| 5/30 | My Bucket's Got A Hole In It Day |
| 5/31 | National Macaroon Day |
| June |
| 6/1 | Dare Day |
| 6/2 | National Rocky Road Day |
| 6/3 | Repeat Day |
| 6/4 | Old Maid's Day |
| 6/5 | Festival Of Popular Delusions |
| 6/6 | Teacher's Day, National Applesauce Cake Day |
| 6/7 | National Chocolate Ice Cream Day |
| 6/8 | Name Your Poison Day |
| 6/9 | Donald Duck Day |
| 6/10 | National Yo-Yo Day |
| 6/11 | National Hug Holiday, King Kamehameha Day |
| 6/12 | Machine Day |
| 6/13 | National Juggling Day, Kitchen Klutzes Of America Day |
| 6/14 | Pop Goes The Weasel Day |
| 6/15 | Smile Power Day |
| 6/16 | National Hollerin' Contest Day |
| 6/17 | Watergate Day, Eat Your Vegetables Day |
| 6/18 | International Panic Day |
| 6/19 | World Sauntering Day |
| 6/20 | Ice Cream Soda Day |
| 6/22 | National Chocolate Eclair Day |
| 6/23 | National Pink Day |
| 6/24 | Museum Comes To Life Day |
| 6/25 | Log Cabin Day |
| 6/26 | National Chocolate Pudding Day |
| 6/27 | National Columnists Day |
| 6/28 | Paul Bunyan Day |
| 6/29 | Camera Day |
| 6/30 | Meteor Day |
| July |
| 7/1 | Creative Ice Cream Flavor Day, Build A Scarecrow Day |
| 7/2 | Visitation Of The Virgin Mary Day |
| 7/3 | Stay Out Of The Sun Day, Compliment Your Mirror Day |
| 7/4 | National Country Music Day |
| 7/5 | Workaholics Day |
| 7/6 | National Fried Chicken Day |
| 7/7 | National Strawberry Sundae Day |
| 7/8 | Video Games Day |
| 7/9 | National Sugar Cookie Day |
| 7/10 | Clerihew Day |
| 7/11 | National Cheer Up The Lonely Day |
| 7/12 | National Pecan Pie Day |
| 7/13 | Fool's Paradise Day |
| 7/14 | National Nude Day |
| 7/15 | National Tapioca Pudding Day, Respect Canada Day |
| 7/16 | International Juggling Day |
| 7/17 | National Peach Ice Cream Day |
| 7/18 | National Ice Cream Day, National Caviar Day |
| 7/19 | Flitch Day |
| 7/20 | Ugly Truck Contest |
| 7/21 | National Tug-Of-War Tournament |
| 7/22 | Ratcatcher's Day |
| 7/23 | National Vanilla Ice Cream Day |
| 7/24 | Amelia Earhart Day |
| 7/25 | Threading The Needle Day |
| 7/26 | All Or Nothing Day |
| 7/27 | Take Your Pants For A Walk Day |
| 7/28 | National Milk Chocolate Day |
| 7/29 | Cheese Sacrifice Purchase Day |
| 7/30 | National Cheesecake Day |
| 7/31 | Parent's Day |
| August |
| 8/1 | Friendship Day, National Raspberry Cream Pie Day |
| 8/2 | National Ice Cream Sandwich Day |
| 8/3 | National Watermelon Day |
| 8/4 | Twins Day |
| 8/5 | National Mustard Day |
| 8/6 | Wiggle Your Toes Day |
| 8/7 | Sea Serpent Day |
| 8/8 | Sneak Some Zucchini Onto Your Neighbor's Porch Night |
| 8/9 | National Polka Festival |
| 8/10 | Lazy Day |
| 8/11 | Presidential Joke Day |
| 8/12 | Middle Child's Day |
| 8/13 | Blame Someone Else Day |
| 8/14 | National Creamsicle Day |
| 8/15 | National Relaxation Day, National Failures Day |
| 8/16 | Bratwurst Festival |
| 8/17 | National Thriftshop Day |
| 8/18 | Bad Poetry Day |
| 8/19 | Potato Day |
| 8/20 | National Radio Day |
| 8/21 | National Spumoni Day |
| 8/22 | Be An Angel Day |
| 8/23 | National Spongecake Day |
| 8/24 | Knife Day |
| 8/25 | Kiss-And-Make-Up Day, Adopt-a-Freshman Day |
| 8/26 | National Cherry Popsicle Day |
| 8/27 | Petroleum Day |
| 8/28 | World Sauntering Day |
| 8/29 | More Herbs, Less Salt Day |
| 8/30 | National Toasted Marshmallow Day |
| 8/31 | National Trail Mix Day |
| September |
| 9/1 | Emma M. Nutt Day |
| 9/2 | National Beheading Day |
| 9/3 | Skyscraper Day |
| 9/4 | Newspaper Carrier Day |
| 9/5 | Be Late For Something Day |
| 9/6 | Fight Procrastination Day |
| 9/7 | Neither Rain Nor Snow Day |
| 9/8 | National Date Nut Bread Day, Pardon Day |
| 9/9 | Teddy Bear Day, Hug Day |
| 9/10 | Swap Ideas Day |
| 9/11 | No News Is Good News Day |
| 9/12 | National Pet Memorial Day |
| 9/13 | Defy Superstition Day |
| 9/14 | National Cream-filled Donut Day |
| 9/15 | Felt Hat Day |
| 9/16 | Stay Away From Seattle Day, Collect Rocks Day |
| 9/17 | National Apple Dumpling Day |
| 9/18 | National Play-doh Day |
| 9/19 | National Butterscotch Pudding Day, National Talk-Like-A-Pirate Day |
| 9/20 | National Punch Day |
| 9/21 | World Gratitude Day, International Banana Festival |
| 9/22 | Hobbit Day, Dear Diary Day |
| 9/23 | Checkers Day, Dogs In Politics Day |
| 9/24 | Festival Of Latest Novelties |
| 9/25 | National Comic Book Day |
| 9/26 | National Good Neighbor Day |
| 9/27 | Crush-A-Can Day |
| 9/28 | Ask A Stupid Question Day |
| 9/29 | Poisoned Blackberries Day |
| 9/30 | National Mud Pack Day |
| October |
| 10/1 | World Vegetarian Day, Magic Circles Day |
| 10/2 | Name Your Car Day |
| 10/3 | Virus Appreciation Day |
| 10/4 | National Golf Day |
| 10/5 | National Storytelling Festival |
| 10/6 | German-American Day, Come and Take It Day |
| 10/7 | National Frappe Day |
| 10/8 | American Tag Day |
| 10/9 | Moldy Cheese Day |
| 10/10 | National Angel Food Cake Day |
| 10/11 | It's My Party Day |
| 10/12 | International Moment Of Frustration Scream Day |
| 10/13 | National Peanut Festival |
| 10/14 | Be Bald and Free Day, National Dessert Day |
| 10/15 | White Cane Safety Day, Bake Cakes Day |
| 10/16 | Dictionary Day |
| 10/17 | Gaudy Day, Bonfire and Weenie Roast Day |
| 10/18 | No Beard Day |
| 10/19 | Evaluate Your Life Day |
| 10/20 | National Brandied Fruit Day |
| 10/21 | Babbling Day |
| 10/22 | National Nut Day |
| 10/23 | National Mole Day |
| 10/24 | National Bologna Day |
| 10/25 | Punk For A Day Day |
| 10/26 | Mule Day |
| 10/27 | Sylvia Plath Day |
| 10/28 | Plush Animal Lover's Day, National Chocolate Day |
| 10/29 | Hermit Day |
| 10/30 | National Candy Corn Day |
| 10/31 | National Magic Day, Increase Your Pyschic Powers Day |
| November |
| 11/1 | Plan Your Epitaph Day |
| 11/2 | National Deviled Egg Day |
| 11/3 | Sandwich Day, Housewife's Day |
| 11/4 | Waiting For The Barbarians Day |
| 11/5 | Gunpowder Day |
| 11/6 | Saxophone Day, Marooned Without A Compass Day |
| 11/7 | National Bittersweet Chocolate With Almonds Day |
| 11/8 | Dunce Day |
| 11/9 | Chaos Never Dies Day |
| 11/10 | Forget-Me-Not Day |
| 11/11 | Air Day |
| 11/12 | National Pizza-With-The-Works-Except-Anchovies Day |
| 11/13 | National Indian Pudding Day |
| 11/14 | Operation Room Nurse Day |
| 11/15 | National Clean Out Your Refrigerator Day |
| 11/16 | Button Day |
| 11/17 | Take-A-Hike Day |
| 11/18 | Occult Day |
| 11/19 | Have A Bad Day Day |
| 11/20 | Absurdity Day |
| 11/21 | World Hello Day, False Confessions Day |
| 11/22 | Start Your Own Country Day |
| 11/23 | National Cashew Day |
| 11/24 | Use Even If Seal Is Broken Day |
| 11/25 | National Parfait Day |
| 11/26 | Shopping Reminder Day |
| 11/27 | Pins And Needles Day |
| 11/28 | Make Your Own Head Day |
| 11/29 | Square Dance Day |
| 11/30 | Stay At Home Because You're Well Day |
| December |
| 12/1 | National Pie Day, Eat A Red Apple Day, Begin Christmahanakwanzakaa |
| 12/2 | National Fritters Day |
| 12/3 | National Roof-Over-Your-Head Day |
| 12/4 | Wear Brown Shoes Day |
| 12/5 | National Sacher Torte Day, International Day of the Ninja |
| 12/6 | National Gazpacho Day, Mitten Tree Day |
| 12/7 | National Cotton Candy Day |
| 12/8 | Take It In The Ear Day |
| 12/9 | National Pastry Day |
| 12/10 | Festival For The Souls Of Dead Whales |
| 12/11 | National Noodle Ring Day |
| 12/12 | National Ding-A-Ling Day |
| 12/13 | Ice Cream and Violins Day |
| 12/14 | National Bouillabaisse Day |
| 12/15 | National Lemon Cupcake Day |
| 12/16 | National Chocolate Covered Anything Day |
| 12/17 | Underdog Day and National Maple Syrup Day |
| 12/18 | National Roast Suckling Pig Day |
| 12/19 | Oatmeal Muffin Day |
| 12/20 | Games Day |
| 12/21 | Look At The Bright Side Day, National Flashlight Day |
| 12/22 | National Date-Nut Bread Day |
| 12/23 | Roots Day |
| 12/24 | National Egg Nog Day |
| 12/25 | National Pumpkin Pie Day |
| 12/26 | National Whiners Day |
| 12/27 | National Fruitcake Day |
| 12/28 | Card Playing Day, National Chocolate Day |
| 12/29 | Pepper Pot Day |
| 12/30 | Festival Of Enormous Changes At The Last Minute, National Bicarbonate of Soda Day |
| 12/31 | Unlucky Day, End Christmahanakwanzakaa |
