Appropriately, Make Up Your Own Holiday Day. 
And sometimes Easter or Good Friday or some other part of Holy Week.
When come back… 
Mine is Sneak Some Zucchini onto Your Neighbor’s Porch Day and my daughter’s is Fresh Veggie Day.
We must be related or something. 
We share a birthday!
The Ides of March
Unlucky Day – and I always thought it was New Year’s Eve…
Summer solstice.
Mine doesn’t fall on any real holiday, but is the day after Bastille Day. So I usually celebrate by cutting the tops off some left over French bread and then storming the refrigerator.
The occasional Easter. Also National Golfers Day and National Siblings Day. I’m an athiest, I don’t play golf and my sister is gone, so I won’t be celebrating.
3 strikes, can I pick another day?
What an odd way to celebrate Tapioca Pudding Day.
Veteran’s Day, which a government holiday. Since I work for the government, I always get my birthday off.
Sally Ride Day:
Sally Ride Day was created in honor of the birth date of Sally Ride, the first woman in space. Sally Ride was born on May 26, 1951, in Los Angeles, California.
And May 26 is the last day of school for many districts so children celebrate my birthday all over these United States.
Valentine’s Day and apparently Ferris Wheel Day
What otternell said.
Mine, too. Consequently, during my youth, my birthday present was school starting.:rolleyes:
I like that our day is essentially celebrating a politician’s death. It feels good!
You’re the fifth person I’ve known or met who can claim that.
Teller (from Penn and) told me that to my face. Sort of.
Senior Citizens Day.
Oy.
My birthday is 29th Feb. Pretty well known, I would say. 
That’s mine! I shall raise a Frito in your honor next year along with Tom Selleck and William McKinley.