National Black Cow Day is celebrated every year on 10 June, falling on a Wednesday in 2026. The day honours the black cow, a simple but much-loved American drink made by adding a scoop of vanilla ice cream to a glass of root beer. Better known today as a root beer float, it is a...
CNA Day, formally known as National Career Nurse Assistants’ Day, takes place on Thursday, 11 June 2026. It opens National Nursing Assistants’ Week (11 to 17 June 2026) and recognises the certified nursing assistants who provide hands-on, day-to-day care for patients and residents across hospitals, nursing homes, and care facilities throughout the United States. What...
EHS Day is observed on 10 June each year, raising awareness of electromagnetic hypersensitivity (EHS), a condition in which individuals experience physical symptoms they attribute to exposure to electromagnetic fields (EMFs) from devices such as mobile phones, Wi-Fi routers, and power lines. In 2027, EHS Day falls on a Thursday. What is EHS Day? EHS...
National Ballpoint Pen Day takes place every year on 10 June. It celebrates the humble writing tool found in almost every pocket, bag, and desk drawer, and it marks the date in 1943 when Hungarian journalist László Bíró secured the Argentine patent that helped bring the modern ballpoint pen to the world. The day is...
National Frosted Cookie Day takes place every year on 10 June and celebrates the simple joy of a cookie topped with sweet, colourful icing. The day was created in 2023 through a collaboration between National Day Calendar and Mother’s Cookies, and it encourages families to bake, decorate, and share frosted treats together. It is a...
National Seersucker Day is observed in the United States on the second Thursday of June, falling on Thursday, 10 June 2027. The day celebrates one of summer’s most distinctive fabrics: the puckered, lightweight cotton cloth with its signature alternating stripes, long associated with warm-weather style, Southern charm, and a tradition of bipartisan camaraderie in the...
National German Chocolate Cake Day takes place every year on 11 June, falling on a Thursday in 2026. The day celebrates the rich, layered American dessert famous for its sweet chocolate sponge and its signature coconut-pecan frosting. Despite the name, the cake has nothing to do with Germany, and this is a day to bake,...
National Making Life Beautiful Day takes place every year on 11 June and celebrates the people who make life better for those around them. The day encourages acts of kindness, gratitude, and care, and it invites everyone to recognise both their own inner beauty and the people who brighten their world. It was established in...
National Corn on the Cob Day falls on Thursday, 11 June 2026. It is an informal American food holiday that celebrates one of summer’s most reliable pleasures: a freshly cooked ear of sweetcorn, eaten straight off the cob. The day marks the start of cookout and picnic season and gives corn lovers an excuse to...
National Movie Night takes place on Friday, 12 June 2026, encouraging families and friends to gather around a screen and enjoy a film together. Observed on the second Friday in June each year, the day was founded in 2022 by mother-and-daughter team Jennifer and Jayda Borget to revive the simple tradition of the shared movie...
King Kamehameha Day is a state public holiday in Hawaii, observed each year on 11 June. It honours Kamehameha the Great, the warrior king who unified the Hawaiian Islands under a single rule in 1810, and is the only holiday in the United States dedicated to the memory of a monarch. The day is marked...
National Cougar Day takes place on Friday, 12 June 2026, a date set aside each year to celebrate one of North America’s most adaptable wild cats and to raise awareness of the threats it faces. The day champions the conservation of cougars, highlights their role as a keystone species, and encourages people to swap fear...
National Peanut Butter Cookie Day is celebrated every year on 12 June, honouring the dense, nutty cookie with its signature crisscross fork pattern. In 2026 it falls on Friday, 12 June. The day invites peanut butter and cookie lovers across the United States to bake a batch, share them, and enjoy a sweet classic. How...
National Jerky Day is observed every year on 12 June in the United States, celebrating one of the world’s oldest snack foods and the modern industry that has grown around it. Founded by Jack Link’s Beef Jerky and the Wisconsin Beef Council in 2012, the day honours the rich history of dried meat, from its...
National Loving Day takes place every year on 12 June and commemorates the 1967 United States Supreme Court ruling in Loving v. Virginia, which struck down laws banning interracial marriage. The day celebrates multiracial families and couples, and it honours Richard and Mildred Loving, whose legal battle changed American law. It is a grassroots observance...
National Dragonfly Day is observed on the second Saturday in June, which falls on 12 June in 2027. The day celebrates dragonflies and damselflies, raises awareness of their ecological importance, and encourages people to protect the wetland habitats these ancient insects depend on. It was established to promote interest in odonatology, the scientific study of...
National Marina Day takes place on Saturday, 12 June 2027, kicking off the summer boating season with open days and family events at marinas across North America. The day invites the public to explore boating, meet their local marina community, and learn about caring for the water. How to Celebrate National Marina Day Marinas put...
Missing Mutts Awareness Day takes place on Saturday, 12 June 2027. The day raises awareness of what to do when a dog goes missing and how to help bring lost or stolen pets safely home. It also encourages owners to take simple steps that make a reunion far more likely if the worst happens. What...
National Great Dane Day takes place on Saturday, 12 June 2027, celebrating one of the largest and most gentle dog breeds in the world. The day honours the Great Dane, the so-called “Apollo of dogs”, and encourages owners, admirers, and rescue supporters to appreciate the breed’s calm temperament, towering stature, and devoted companionship. How to...
National Outlet Shopping Day is an annual retail event that falls on the second Saturday in June, landing on Saturday, 12 June 2027, with participating centres extending the savings across the weekend of 10 to 13 June. Created by Simon Property Group in 2022, the day celebrates outlet shopping with deep discounts, exclusive deals, and...
National Children’s Day is observed in the United States on the second Sunday of June each year, falling on Sunday, 13 June 2027. The day celebrates children, recognises their value to families and society, and encourages adults to spend quality time with the young people in their lives. It is one of several observances around...
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