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December 2021 Holidays + Fun, Weird and Special Dates

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Are you a small business owner or marketer? Looking for December holidays or special dates to celebrate on social media?

Marketing your business on social media just got a lot easier with this complete list of holidays, observances, and special dates for December 2021.

The list includes more than 185 different holidays and observances to celebrate in December.

To learn why holidays make great social media posts read: The Complete Calendar of Social Media Holidays.

Holiday Hashtags for Social Media

When celebrating holidays on social media, it’s important to include the relevant hashtag(s) for that holiday in your post.

Using hashtags will help increase the reach of your post, exposing your business to a larger audience.

Hashtags are such an essential piece to your success on social media that I’ve done the research for you.

Most of the holidays listed below include the corresponding hashtag for social media.

For more social media post ideas read: What to Post on Social Media – 100 Post Ideas for 2020.

List of December 2021 Holidays

In an effort to simplify this massive list of holidays, I’ve divided the days into five categories – public holidays, religious holidays, monthly observances, weekly observances, and daily observances.

Scroll down to view all 185+ holidays or use the following links to skip ahead to a specific category.

Access all Holidays for the Year

Bonus 2021 Holidays

Did you know there are over 3,300 holidays to celebrate on social media each year? 

Click here for a complete listing of holidays for every month of the year.  

If you’d like a printable PDF with all the holidays listed out by month, check out the Social Media Content App.  It includes a free PDF of all 3,300+ holidays.

December 2021 Public Holidays

This list contains public holidays and special observances in the United States, Australia, Canada, and the United Kingdom.
DateHolidayHashtagWhere Observed
December 211st Day of Winter#WinterSolstice North America
December 21December Solstice#WinterSolstice United Kingdom
December 22December Solstice#SummerSolsticeAustralia
December 25Christmas Day#ChristmasWorldwide
December 26Boxing Day#BoxingDayAustralia, Canada, UK
December 26Proclamation Day#ProclamationDaySouth Australia
December 27Christmas Day Observed Worldwide
December 28Boxing Day Observed Australia, Canada, UK
December 28Proclamation Day ObservedSouth Australia
December 31New Year's Eve#NYEWorldwide

December 2021 Religious Holidays

DateHolidayHashtagReligion
December 6Hanukkah Ends#HanukkahJewish
December 8Feast of the Immaculate Conception#ImmaculateConceptionChristian
December 12 Feast of Our Lady of Guadalupe#OurLadyGuadalupe Christian
December 14 Asarah B'Tevet#AsarahBTevetJewish
December 24Christmas Eve#ChristmasEve Christian
December 25 Christmas #Christmas Christian

December 2021 Monthly Observances

Holiday
Bingo’s Birthday Month
Buckwheat Month
HIV/AIDS Awareness Month
MADD Tie One On For Safety
National Car Donation Month
National Drunk & Drugged Driving (3D) Prevention Month
National Impaired Driving Prevention Month
National Pear Month
National Tie Month
National Write A Business Plan Month
Root Vegetables and Exotic Fruits Month
Safe Toys and Gifts Awareness Month
Spiritual Literacy Month
Universal Human Rights Month
Worldwide Food Service Safety Month
Youngsters on The Air (YOTA) Month

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December 2021 Weekly Observances

DateHoliday
Dec. 1 - 7Crohn’s and Colitis Awareness Week
Dec. 5 - 11Clerc-Gallaudet Week
Dec. 5 - 11Human Rights Week
Dec. 5 - 11National Cookie Cutter Week
Dec. 5 - 11National Handwashing Awareness Week
Dec. 5 - 11Older Driver Safety Awareness Week
Dec. 5 - 11Recipe Greetings For The Holidays Week
Dec. 6 - 12Computer Science Education Week
Dec. 12 - 18Gluten-free Baking Week
Dec. 14 - Jan. 5Christmas Bird Count
Dec. 17 - 23Saturnalia

December 2021 Daily Observances

DateHolidayHashtag
December 1Bifocals at the Monitor Liberation Day#BifocalsAtTheMonitorLiberationDay
December 1Civil Air Patrol Day#CivilAirPatrolDay
December 1Day Without Art Day#DayWithoutArt
December 1Eat a Red Apple Day#EatARedAppleDay
December 1National Christmas Lights Day#ChristmasLightsDay
December 1National Package Protection Day #PackageProtectionDay
December 1National Pie Day #NationalPieDay
December 1Rosa Parks Day#RosaParksDay
December 1World AIDS Day#WorldAidsDay
December 2International Day for the Abolition of Slavery#DayForTheAbolitionOfSlavery
December 2National Fritters Day#NationalFrittersDay
December 2National Mutt Day#NationalMuttDay
December 2Safety Razor Day#SafetyRazorDay
December 2Special Education Day#SpecialEducationDay
December 2Special Kids Day#SpecialKidsDay
December 3Bartender Appreciation Day#BartenderAppreciationDay
December 3Faux Fur Friday#FauxFurFriday
December 3International Day of Persons with Disabilities#DisabilityDay
December 3Make a Gift Day#MakeAGiftDay
December 3National Roof Over Your Head Day#RoofOverYourHeadDay
December 4National Cookie Day#NationalCookieDay
December 4National Dice Day#NationalDiceDay
December 4National Rhubarb Vodka Day#RhubarbVodkaDay
December 4National Sock Day#NationalSockDay
December 4Skywarn Recognition Day#SkywarnRecognitionDay
December 4Wear Brown Shoes Day#WearBrownShoesDay
December 4Wildlife Conservation Day#WildlifeConservationDay
December 5AFL-CIO Day#AflCioDay
December 5Bathtub Party Day#BathtubPartyDay
December 5International Ninja Day#InternationalNinjaDay
December 5International Volunteer Day #VolunteerDay
December 5National Sacher Torte Day#NationalSacherTorteDay
December 5Repeal Day#RepealDay
December 5World Soil Day#WorldSoilDay
December 6Miners’ Day#NationalMinersDay
December 6Mitten Tree Day#MittenTreeDay
December 6National Gazpacho Day#NationalGazpachoDay
December 6National Microwave Oven Day#MicrowaveOvenDay
December 6National Pawnbrokers Day#NationalPawnbrokersDay
December 6Put on Your Own Shoes Day#PutOnYourOwnShoesDay
December 6St. Nicholas Day #StNicholasDay
December 7International Civil Aviation Day#CivilAviationDay
December 7Letter Writing Day#LetterWritingDay
December 7National Cotton Candy Day#NationalCottonCandyDay
December 7National Pearl Harbor Remembrance Day#PearlHarborRemembranceDay
December 7World Trick Shot Day#TrickShotDay
December 8National Brownie Day#NationalBrownieDay
December 8Pretend To Be A Time Traveler Day#PretendToBeATimeTraveler
December 8World Pear Day#WorldPearDay
December 9Christmas Card Day#ChristmasCardDay
December 9International Anti-Corruption Day#AntiCorruptionDay
December 9National Llama Day#LlamaDay
December 9National Pastry Day#NationalPastryDay
December 9Weary Willie Day#WearyWillieDay
December 9World Techno Day#WorldTechnoDay
December 10Dewey Decimal System Day#DeweyDecimalSystemDay
December 10Human Rights Day#HumanRightsDay
December 10National Lager Day#NationalLagerDay
December 10National Salesperson's Day#SalespersonsDay
December 10Nobel Prize Day#NobelPrizeDay
December 10Official Lost & Found Day#OfficialLostAndFoundDay
December 11Gingerbread Decorating Day#GingerbreadDecoratingDay
December 11International Mountain Day#MountainDay
December 11International Shareware Day#SharewareDay
December 11National App Day#NationalAppDay
December 11National Noodle Ring Day#NationalNoodleRingDay
December 12Gingerbread House Day#GingerbreadHouseDay
December 12National 12-hour Fresh Breath Day#12HourFreshBreathDay
December 12National Ambrosia Day#NationalAmbrosiaDay
December 12National Ding-a-Ling Day#NationalDingALingDay
December 12Poinsettia Day#NationalPoinsettiaDay
December 12World Choral Day#WorldChoralDay
December 12Worldwide Candle Lighting Day #CandleLightingDay
December 13Green Monday#GreenMonday
December 13National Cocoa Day#NationalCocoaDay
December 13National Day Of The Horse#DayOfTheHorse
December 13National Violin Day#NationalViolinDay
December 13Pick A Pathologist Pal Day#PickAPathologistPalDay
December 13U.S. National Guard Birthday#NationalGuardBirthday
December 14Monkey Day#MonkeyDay
December 14National Bouillabaisse Day#BouillabaisseDay
December 15Bill of Rights Day #BillOfRightsDay
December 15Cat Herders' Day#CatHerdersDay
December 15International Tea Day#TeaDay
December 15National Cupcake Day#NationalCupcakeDay
December 15National Wear Your Pearls Day#NationalWearYourPearlsDay
December 16Barbie and Barney Backlash Day#BarbieAndBarneyBacklashDay
December 16National Chocolate Covered Anything Day#ChocolateCoveredAnythingDay
December 17National Maple Syrup Day#MapleSyrupDay
December 17National Ugly Christmas Sweater Day#UglyChristmasSweaterDay
December 17Pan American Aviation Day#PanAmericanAviationDay
December 17Underdog Day#UnderdogDay
December 17Wright Brothers Day#WrightBrothersDay
December 18Answer the Phone Like Buddy the Elf Day#AnswerThePhoneLikeBuddyTheElfDay
December 18Arabic Language Day#ArabicLanguageDay
December 18International Migrants Day#MigrantsDay
December 18National Roast Suckling Pig Day#RoastSucklingPigDay
December 18National Wreaths Across America Day#WreathsAcrossAmericaDay
December 19National Emo Day#EmoDay
December 19National Hard Candy Day#NationalHardCandyDay
December 19National Oatmeal Muffin Day#OatmealMuffinDay
December 20Games Day#GamesDay
December 20International Human Solidarity Day#HumanSolidarityDay
December 20Mudd Day#MuddDay
December 20National Sangria Day#NationalSangriaDay
December 21Anne and Samantha Day#AnneSamanthaDay
December 21Crossword Puzzle Day #CrosswordPuzzleDa
December 21First Day of Winter#FirstDayofWinter
December 21Forefathers' Day#ForefathersDay
December 21Humbug Day #HumbugDay
December 21International Dalek Remembrance Day#DalekRemembranceDay
December 21National Coquito Day#CoquitoDay
December 21National Flashlight Day#NationalFlashlightDay
December 21National French Fried Shrimp Day#FrenchFriedShrimpDay
December 21National Homeless Persons’ Remembrance Day#HomelessPersonsRemembranceDay
December 21Phileas Fogg Win A Wager Day#PhileasFoggWinAWagerDay
December 21Short Girl Appreciation Day#ShortGirlAppreciationDay
December 21Yule Begins#Yule
December 22National Cookie Exchange Day#CookieExchangeDay
December 22National Date Nut Bread Day#DateNutBreadDay
December 23Festivus#Festivus
December 23National Pfeffernusse Day#NationalPfeffernusseDay
December 23National Regifting Day#NationalReGiftingDay
December 23National Roots Day#NationalRootsDay
December 24National Eggnog Day#NationalEggnogDay
December 25National Pumpkin Pie Day#NationalPumpkinPieDay
December 25No “L” Day#NoLDay
December 26National Candy Cane Day#NationalCandyCaneDay
December 26National Thank You Note Day#NationalThankYouNoteDay
December 26National Whiner’s Day#NationalWhinersDay
December 27National Fruitcake Day #NationalFruitcakeDay
December 27Visit The Zoo Day#VisitTheZooDay
December 28Call a Friend Day#CallAFriendDay
December 28Holy Innocents' Day#HolyInnocentsDay
December 28National Card Playing Day#CardPlayingDay
December 28National Chocolate Candy Day#ChocolateCandyDay
December 28National Download Day#DownloadDay
December 28National Short Film Day#ShortFilmDay
December 28Pledge of Allegiance Day#PledgeOfAllegianceDay
December 29National Pepper Pot Day#NationalPepperPotDay
December 29Still Need To Do Day#StillNeedToDoDay
December 29Tick Tock Day#TickTockDay
December 30Bacon Day#BaconDay
December 30Falling Needles Family Fest Day#FallingNeedlesFamilyFestDay
December 30National Bicarbonate of Soda Day#BicarbonateOfSodaDay
December 31Hogmanay#Hogmanay
December 31Make Up Your Mind Day#MakeUpYourMindDay
December 31National Champagne Day#NationalChampagneDay
December 31No Interruptions Day #NoInterruptionsDay
December 31Universal Hour of Peace Day#HourOfPeaceDay
December 31World Peace Meditation Day#PeaceMeditationDay
Sources:
https://www.timeanddate.com, https://nationaldaycalendar.com, https://en.wikipedia.org
http://www.holidayscalendar.com, https://nationaltoday.com, https://www.checkiday.com, https://www.brownielocks.com

Social Media Marketing Resources

Want more social media marketing resources and tips?

You’re in luck! 

I have a whole bunch of free content on my website and Youtube channel all about marketing your business. 

To get started, I recommend these three articles: 

And be sure to download my free cheat sheet of 100 Social Media Post Ideas. 

You’re going to love it!

Holidays + Fun, Weird and Special Dates for 2022 and beyond

The complete list of holidays, observances, fun, weird, and special dates for each month in 2020 can be found here:   AngieGensler.com/Holidays

Social Media Just Got Easy

Tackle social media and save HOURS of time and stress with the Social Content App. You’ll get 365 days of Copy-and-Post Content inside a user-friendly mobile app!

Jecara tried it and said: “WOW!! The app didn’t just save me time, but saved me mental strain and the sense of social media overwhelm was ZERO!! I LOVE THIS APP!!”

Daily Post Prompts Social Media Content App

Click here to start your free 7-day trial and see why business owners around the world are raving about the Social Content App.

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By Angie Gensler

Angie Gensler is passionate about teaching entrepreneurs how to grow their business using social media and digital marketing...without the hustle and overwhelm. Angie believes building a business should be fun – not an exhausting whirlwind of sleepless nights and unlimited cups of coffee. Instead, Angie teaches entrepreneurs how to build a business and life they love at their speed, on their time, with their rules.

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