Monday
April 1
25 holidays and observances fall on this day.
April Fools' Day
April Fools' Day is a worldwide custom of playing practical jokes and pranks every year on April 1.
Last day of Passover
The Last day of Passover is a Jewish festival concluding the eight-day Exodus commemoration on 22 Nisan.
Holy Wednesday
Holy Wednesday is a solemn day of Holy Week commemorating the betrayal of Jesus by Judas Iscariot.
Edible Book Day
Edible Book Day is an annual international festival celebrating books and food every April 1.
International Tatting Day
International Tatting Day is an international celebration of handcrafted lace-making held every April 1.
International Fun at Work Day
International Fun at Work Day is an annual event that promotes joy and morale in the workplace every April 1.
Tangible Karma Day
Tangible Karma Day is an annual observance on April 1 that encourages people to perform physical acts of kindness.
Myles Day
Myles Day is a literary tribute to Irish writer Brian O'Nolan held annually on April 1.
Lupus Alert Day
Lupus Alert Day is an annual health observance held every April 1 to raise awareness of autoimmune diseases.
Reading is Funny Day
Reading is Funny Day is a lighthearted literacy event held every April 1 to show children the joy of funny books.
Fossil Fools Day
Fossil Fools Day is an annual environmental campaign that promotes renewable energy every April 1.
Erev Pesach
Erev Pesach is the final day of preparation for Passover observed on the 14th of Nisan.
St. Stupid Day
St. Stupid Day is a satirical celebration of human folly held annually in San Francisco on April 1.
National Sourdough Bread Day
National Sourdough Bread Day is an annual celebration of the world's oldest leavened bread held every April 1.
National Trombone Players Day
National Trombone Players Day is an annual celebration of trombone music and musicians held on April 1.
National Fun Day
National Fun Day is an annual celebration of joy, play, and intentional enjoyment held every April 1.
National One Cent Day
National One Cent Day is an annual tribute to the American penny and its history held every April 1.
Boomer Bonus Days
Boomer Bonus Days is a lighthearted celebration of the Baby Boomer generation observed every year on April 1.
Nickelodeon Anniversary Celebration Day
Nickelodeon Anniversary Celebration Day honors the first children's cable network every April 1.
Mathematics and Statistics Awareness Month
Mathematics and Statistics Awareness Month is a month-long observance held every April to promote mathematical literacy.
U.S. Air Force Academy Day
U.S. Air Force Academy Day commemorates the institution's founding on April 1, 1954, in Colorado.
National Jump in Muddy Puddles Day
National Jump in Muddy Puddles Day celebrates childhood and cancer research on April 1.
National Greeting Card Day
National Greeting Card Day is an annual celebration of handwritten messages and card-giving held every April 1.
Library Snap Shot Day
Library Snap Shot Day is a national advocacy event held every April 1 to document the daily impact of libraries.
Cyprus National Holiday
Cyprus National Holiday commemorates the start of the 1955 liberation struggle and is observed every April 1.
Coming up next
World Autism Awareness Day
World Autism Awareness Day is an international observance promoting neurodiversity and inclusion held every April 2.
Maundy Thursday
Maundy Thursday is a solemn Christian holy day observed on the Thursday before Easter to honor the Last Supper.
International Children’s Book Day
International Children’s Book Day is an annual celebration of children's literature held every April 2.
International Fact-Checking Day
International Fact-Checking Day is an annual media literacy event held every April 2 to promote truth and accuracy.
National Peanut Butter and Jelly Day
National Peanut Butter and Jelly Day is an annual celebration of the iconic American sandwich held every April 2.
National Ride Your Horse to a Bar Day
National Ride Your Horse to a Bar Day is an annual social event for equestrians held every April 2.
National Reconciliation Day
National Reconciliation Day is an annual observance focused on healing broken relationships held every April 2.
Pascua Florida Day
Pascua Florida Day is an annual state holiday in Florida held every April 2.
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