March 31st is the 90th day in the Gregorian calendar; it marks the anniversary of the official opening of the Eiffel Tower and the first time Daylight Saving Time goes into effect in the United States. Famous March 31st birthdays include Christopher Walken, Al Gore, Ewan McGregor, and Conrad Sewell. March 31st also marks World Backup Day.
We have 14 holidays listed for March 31.
Manatee Appreciation Day
Endangered sea cows who are quickly falling victim to pollution, global warming, and hunting.
Anesthesia Tech Day
Discover the history, importance, and medical milestones of these technicians and technologists on Anesthesia Tech Day.
Cesar Chavez Day
Celebrate the life and legacy of this iconic hero, and take inspiration from his lifelong servitude.
Dance Marathon Day
Have fun, stay fit, and support a good cause on this year’s Dance Marathon Day.
Eiffel Tower Day
Raise a toast to this monumental feat of construction as we celebrate Eiffel Tower Day.
National Clams on the Half Shell Day
Seafood lovers won’t clam up about their love for clams today.
National Crayon Day
Spark fond memories of childhood creations in full color as we celebrate the beloved crayon!
National Farm Workers Day
The labor force on a farm plays a pivotal role in bringing crops to fruition.
National Prom Day
Post a throwback or call up a high school friend — cherish your unforgettable prom memories.
Transgender Day of Visibility
Let’s join the trans community to celebrate not ‘fitting in’ when we yearn to stand out!