If you overindulged on December 31, rejoice, because January 1 is both National Hangover Day and National Bloody Mary Day. Those are just a couple of the little-known holidays you’ve probably never heard of or observed before. Here are more weird and wonderful reasons to celebrate in 2021.

January

4 National Trivia Day, founded by Robert L. Birch in 1980, preceded the debut of Trivial Pursuit in 1981. You can tip your trivia hat to Alex Trebek, beloved host of “Jeopardy,” who passed away in November 2020.

February

1 Eat Ice Cream for Breakfast Day. But save room for... 

2 National Tater Tot Day

14 Valentine’s Day, the holiday we all know and love, is also National Organ Donor Day. 

17 National Act of Kindness Day. In the midst of COVID and after a contentious election, that’s one we can all get behind.

20 At noon, go out, raise your hands over your head, and yell, “Hoodie Hoo!” Hoooo knows why?

March

2 National Dr. Seuss Day. Grab your favorite grandchild and children’s book and read. 

6 National Day of Unplugging, but you probably won’t get your grandkids to go along.  

9 Napping Day gives you an excuse to relax.

April

7 National No Housework and National Beer days. Forget spring cleaning and drink a brewski in the spring sun.

16 Wear Pajamas to Work Day, if you aren’t already.

30 National Honesty Day, as well as National Adopt a Shelter Pet Day.  

May

1 Attention all gardeners! It’s World Gardening Naked Day. 

6 International No Diet Day, unless May 2 was too humiliating.  

11 National Twilight Zone Day. Cue those four memorable notes and remember: “You’re traveling through another dimension—a dimension not only of sight and sound but of mind.” 

June 

7 National Chocolate Ice Cream Day and 

19 National Martini Day

21 Don’t let your cell phone overheat on National Selfie Day. 

July

6 World Kissing Day and National Fried Chicken Day 

17 Wrong Way Corrigan Day. In 1938, Douglas Corrigan flew from Long Beach, California to Brooklyn, New York. Instead of returning to California, he flew to Ireland. He claimed it was a navigational error, but maybe he knew an Irish lass in need of a kiss!

August

7 National Mustard Day

5 National Oyster Day

6 Free your feet on National Wiggle Your Toes Day. 

14 Get thrifting on National Garage Sale Day.

27 National Just Because Day

September

1 National No Rhyme Nor Reason Day (as if to prove there’s a holiday for everything)

3 National Lazy Moms Day idles in.

6 National Read a Book Day, which pairs well with tomorrow’s

7 National Beer Lovers’ Day.

12 Encouragement Day. We can all use some of that!

19 Don’t forget to Talk Like a Pirate. Arrgh, matey!

22 Give the auto a rest on Car- Free Day and eat a second breakfast to celebrate Hobbit Day.

25 Singles can hunt for ghosts on National Singles Day and National Ghost Hunting Day. 

28 National Voter Registration Day

October

1 International Coffee Day and National Homemade Cookie Day give you two reasons to smile for World Smile Day. 

6 National Plus Size Appreciation Day supports those of us who aren’t a size 00 and 16 years old. It’s also National Mad Hatter Day. 

16 Bring out the Scrabble board for National Dictionary Day. 

27 National Black Cat Day 

29 National Frankenstein Day (for non-morning persons, we celebrate this every a.m.)

31 Halloween is also National Magic Day, National Knock-Knock Joke Day, Caramel Apple Day and Doorbell Day. 

 November

1 National Author’s Day and National Family Literacy Day

4 Ladies can get on board with National Men Make Dinner Day. 

8 National Harvey Wallbanger Day (Does anyone still drink those?) 

13 World Kindness Day, so be nice like Li’l Abner and ask a guy out on Sadie Hawkins Day. 

19 The Great American Smokeout might make you nervous, so keep your hands and mind occupied with National Play Monopoly Day. 

25 Blasé Day. I feel indifferent about it.

26 Buy Nothing Day is held the day after Thanksgiving. Can you do it?

December

4 National Cookie Day and National Sock Day

5 Bathtub Party Day. Maybe this should follow Gardening Naked Day!

8 Pretend to be a Time Traveler Day (You’re a time machine to grandkids!) 

10 Dewey Decimal System Day

14 Monkey Day, which is pretty ambiguous (buy one as a pet, or fool around?)

15 Cat Herders Day. Good luck with that!

16 Barbie and Barney Backlash Day, because sometimes parents need a break. 

18 National Wreaths Across America Day. 

21 Yule (Winter Solstice) and Phileas Fogg Wins a Wager Day

23 National Regifting Day 

31 National Champagne Day, National Make Up Your Mind Day, National No Interruptions Day. Maybe to get ready for National Hangover and Bloody Mary days?