| International Day for Preventing the Exploitation of the Environment in War and Armed Conflict | | |
| Saxophone Day | | |
| Constitution Day | | |
| Anniversary of the Green March | | |
| National Nachos Day | | |
| National Stress Awareness Day | | |
| Wobbly Wednesday | | |
| Day of the Great October Socialist Revolution | | |
| October Revolution Day | | |
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| National Bittersweet Chocolate with Almonds Day | | |
| National Canine Lymphoma Awareness Day | | |
| National Men Make Dinner Day | | |
| Return Day | | |
| International Stout Day | | |
| Thanksgiving | | |
| Chhath Puja | | |
| International Project Management Day | | |
| National Hug A Bear Day | | |
| Journalists' Day | | |
| Tongue Twister Day | | |
| Pohnpei Constitution Day | | |
| National Cappuccino Day | | |
| National Harvey Wallbanger Day | | |
| National Parents as Teachers Day | | |
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| National STEM/STEAM Day | | |
| Yom HaAliyah School Observance | | |
| National Donor Sabbath | | |
| World Radiography Day | | |
| National Dunce Day | | |
| Cook Something Bold And Pungent Day | | |
| Independence Day | | |
| Night of Broken Glass Remembrance Day | | |
| Iqbal Day | | |
| Chaos Never Dies Day | | |
| National Scrapple Day | | |
| Microtia Awareness Day | | |
| National Fried Chicken Sandwich Day | | |
| World Freedom Day | | |
| Carl Sagan Day | | |
| Shout in Villa de los Santos | | |
| World Science Day for Peace and Development | | |
| Ataturk Memorial Day | | |
| Forget Me Not Day | | |
| Marine Corps Birthday | | |
| National Vanilla Cupcake Day | | |
| Remembrance Sunday | | |
| Harvest Festival | | |
| Remembrance Day | | |
| Father's Day | | |
| Grandparents' Day | | |
| Orphan Sunday | | |
| World Top Up Day | | |
| Sesame Street Day | | |
| International Accounting Day | | |
| Area Code Day | | |
| Dear Santa Letter Week | | |
| Armistice Day | | |
| Saint Martin's Day | | |
| Republic Day | | |
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| Independence Day | | |
| Veterans Day | | |
| Origami Day | | |
| Independence of Cartagena | | |
| National Sundae Day | | |
| Remembrance Day | | |
| Veterans of Foreign Wars Day | | |
| Heir to the Throne's Birthday | | |
| Birthday of the Sultan of Kelantan | | |
| National Metal Day | | |
| World Orphans Day | | |
| Singles Day | | |
| Odd Socks Day | | |
| Pocky Day | | |
| Youth National Day | | |
| Sun Yat-sen's Birthday | | |
| Happy Hour Day | | |
| World Pneumonia Day | | |
| National French Dip Day | | |
| National Pizza with the Works Except Anchovies Day | | |
| National Chicken Soup for the Soul Day | | |
| Maore Day | | |
| Birthday of the Sultan of Kelantan | | |
| Fancy Rat & Mouse Day | | |
| World Kindness Day | | |
| Sadie Hawkins Day | | |
| National Indian Pudding Day | | |
| National Hug A Musician Day | | |
| Symphonic Metal Day | | |
| World Diabetes Day | | |
| Colombian Women's Day | | |
| Pickle Day | | |
| National Spicy Guacamole Day | | |
| World Quality Day | | |
| Operating Room Nurse Day | | |
| Loosen Up Lighten Up Day | | |
| Republic Proclamation Day | | |
| 7-5-3 Day | | |
| National Peace Day in Ivory Coast | | |
| America Recycles Day | | |
| National Bundt (Pan) Day | | |
| National Philanthropy Day | | |
| National Clean Out Your Refrigerator Day | | |
| National Spicy Hermit Cookie Day | | |
| National Raisin Bran Cereal Day | | |
| Guru Nanak Jayanti | | |
| Canterbury Anniversary Day | | |
| Saisiat Festival | | |
| Saint Leopold's Day | | |
| Kartik Purnima | | |
| National Drummer Day | | |
| I Love To Write Day | | |
| Steve Irwin Day | | |
| Day Of 8 Billion | | |
| Fast Food Day | | |
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| International Day for Tolerance | | |
| National Button Day | | |
| Mother's Day | | |
| Clarinet Day | | |
| Have A Party With Your Bear Day | | |
| MADD's Tie One On For Safety | | |
| Fight for Freedom and Democracy Day | | |
| Polytechneio | | |
| Struggle for Freedom and Democracy Day | | |
| World Prematurity Day | | |
| National Baklava Day | | |
| National Take A Hike Day | | |
| National Homemade Bread Day | | |
| President's Day | | |
| World Day of Remembrance for Road Traffic Victims | | |
| National Day of Mourning | | |
| National Unfriend Day | | |
| International Happy Gose Day | | |
| National Bible Week | | |
| Vertières Day | | |
| National Day | | |
| Republic of Latvia Proclamation Day | | |
| Independence Day | | |
| Mickey Mouse Birthday | | |
| National Princess Day | | |
| National Vichyssoise Day | | |
| Day off for Revolution Day Memorial | | |
| National Sovereignty Day | | |
| Housing Day | | |
| Apple Cider Day | | |
| Occult Day | | |
| World Toilet Day | | |
| National Day | | |
| International Men's Day | | |
| Discovery Day | | |
| Garifuna Settlement Day | | |
| National Carbonated Beverage With Caffeine Day | | |
| National Play Monopoly Day | | |
| National Entrepreneurs' Day | | |
| National Camp Day | | |
| Have A Bad Day Day | | |
| Women’s Entrepreneurship Day | | |
| Name Your PC Day | | |
| Black Consciousness Day | | |
| Universal Children's Day | | |
| Africa Industrialization Day | | |
| National Peanut Butter Fudge Day | | |
| National Absurdity Day | | |
| National Educational Support Professionals Day | | |
| Revolution Day Memorial | | |
| Repentance Day | | |
| GIS Day | | |
| Teachers' Day | | |
| World Television Day | | |
| Armed Forces Day | | |
| Dayton Peace Agreement Day | | |
| Dignity and Freedom Day | | |
| World Hello Day | | |
| National Stuffing Day | | |
| National Red Mitten Day | | |
| Great American Smokeout | | |
| National Rural Health Day | | |
| World Philosophy Day | | |
| Use Less Stuff Day | | |
| World Pancreatic Cancer Day | | |
| Beaujolais Nouveau Day | | |
| National Gingerbread Cookie Day | | |
| False Confession Day | | |
| Independence Day | | |
| Go For a Ride Day | | |
| National Cranberry Relish Day | | |
| Teachers' Day | | |
| Thanksgiving Day | | |
| Albanian Alphabet Day (Albanian community) | | |
| National Farm-City Week | | |
| Rudolf Maister Day | | |
| Fibonacci Day | | |
| Labor Thanksgiving Day | | |
| National Cashew Day | | |
| National Eat a Cranberry Day | | |
| National Espresso Day | | |
| National Adoption Day | | |
| St. George's Day | | |
| Aura Awareness Day | | |
| Martyrdom of Guru Tegh Bahadur Sahib | | |
| Celebrate Your Unique Talent Day | | |
| National Sardines Day | | |
| Christ the King Day | | |
| Sunday of the Dead | | |
| D.B. Cooper Day | | |
| Independence Day | | |
| Statehood Day | | |
| International Day for the Elimination of Violence against Women | | |
| National Parfait Day | | |
| Blase' Day | | |
| Shopping Reminder Day | | |
| Republic's Day | | |
| National Cake Day | | |
| Aviation Day | | |
| National Bavarian Cream Pie Day | | |
| National Craft Jerky Day | | |
| National Jukebox Day | | |
| Tie One On Day | | |
| Pins And Needles Day | | |
| Turtle Adoption Day | | |
| DrinksGiving | | |
| Independence from Spain | | |
| Proclamation of Independence Day | | |
| Day of Albanians | | |
| Proclamation of the Republic | | |
| Independence Day | | |
| Red Planet Day | | |
| National French Toast Day | | |
| National Day of Mourning | | |
| Turkey-free Thanksgiving | | |
| Thanksgiving Day | | |
| Flag and Independence Day | | |
| Republic Day | | |
| International Day of Solidarity with the Palestinian People | | |
| Unity Day | | |
| William Tubmans Birthday | | |
| Liberation Day | | |
| Electronic Greetings Day | | |
| National Day of Listening | | |
| Buy Nothing Day | | |
| Flossing Day | | |
| Maize Day | | |
| You’re Welcomegiving Day | | |
| Black Friday | | |
| State Holiday | | |
| Presidents' Day | | |
| Lincoln's Birthday/Lincoln's Day | | |
| Day After Thanksgiving | | |
| Family Day | | |
| American Indian Heritage Day | | |
| Sinkie Day | | |
| You’re Welcome Giving Day | | |
| National Square Dancing Day | | |
| Throw Out Your Leftovers Day | | |
| Isdal Woman Day | | |
| National Lemon Cream Pie Day | | |
| St. Andrew's Day | | |
| Independence Day | | |
| Day of Remembrance for all Victims of Chemical Warfare | | |
| Bonifacio Day | | |
| National Give Space Day | | |
| National Mason Jar Day | | |
| National Mousse Day | | |
| National Meth Awareness Day | | |
| Computer Security Day | | |
| Stay Home Because You’re Well Day | | |
| Small Business Saturday | | |
| World AIDS Day | | |
| Day of the First President of the Republic of Kazakhstan | | |
| National holiday | | |
| Republic Day | | |
| Restoration of Independence | | |
| National Eat a Red Apple Day | | |
| Bifocals at the Monitor Liberation Day | | |
| Day With(out) Art Day | | |
| Rosa Parks Day | | |
| First Sunday of Advent | | |
| Inauguration day | | |
| Good Neighborliness Day | | |
| Sovereignty Day | | |
| Freedom and Democracy Day | | |
| National Cookie Cutter Day | | |
| National Cookie Cutter Week | | |
| Operation Santa Paws | | |
| Gift Of Sight Month | | |
| National Tie Month | | |
| National Pear Month | | |
| Bingo’s Birthday Month | | |
| National Human Rights Month | | |
| National Day | | |
| International Day for the Abolition of Slavery | | |
| National Mutt Day | | |
| National Fritters Day | | |
| Special Education Day | | |
| Cyber Monday | | |
| Chatham Islands Anniversary Day | | |
| Westland Anniversary Day | | |
| Anniversary of the Coronation of King Tupou I | | |
| St. Andrew's Day observed | | |
| Play Basketball Day | | |
| Walt Disney Day | | |
| Make a Gift Day | | |
| Day of Navarre | | |
| International Day of Persons with Disabilities | | |
| National Roof Over Your Head Day | | |
| Giving Tuesday | | |
| World Trick Shot Day | | |
| Let’s Hug Day | | |
| Wear Brown Shoes Day | | |
| National Cookie Day | | |
| National Dice Day | | |
| National Sock Day | | |
| National Package Protection Day | | |
| Santa's List Day | | |
| International Cheetah Day | | |
| Cabernet Franc Day | | |
| World Wildlife Conservation Day | | |
| International Day Of Banks | | |
| International Volunteer Day for Economic and Social Development | | |
| World Soil Day | | |
| St Nicholas' Eve/Sinterklaas | | |
| National Sacher Torte Day | | |
| AFL-CIO Day | | |
| Bathtub Party Day | | |
| International Ninja Day | | |
| Martyrdom of Fatima | | |
| King Bhumibol's Birthday | | |
| National Repeal Day | | |
| St. Nicholas' Day | | |
| Army Day | | |
| Independence Day | | |
| Put On Your Own Shoes Day | | |
| Foundation of Quito | | |
| National Pawnbrokers Day | | |
| National Microwave Oven Day | | |
| National Gazpacho Day | | |
| Miners’ Day | | |
| Faux Fur Friday | | |
| Gospel Day | | |
| Constitution Day | | |
| Farmer's Day | | |
| National Bartender Day | | |
| Mitten Tree Day | | |