July 28, 2026, is the 209th day of the year, with 156 days remaining, and it falls on a Tuesday — in the thirty-first week of the year.
With 5 national and international days on the calendar, July 28 is one of the quieter dates of the whole year but what it lacks in volume it makes up in weight. World Hepatitis Day marks the birthday of Baruch Blumberg, who discovered the hepatitis B virus, and reminds us that 325 million people live with a condition that has safe, effective vaccines. National Milk Chocolate Day celebrates the creamier side of the cocoa world, a waterpark beckons, a football is somewhere to be kicked, and the natural world asks for our attention.
National Days on July 28
All national & international days celebrated today
5 celebrations on this dayWorld Hepatitis Day
Observed on July 28 — the birthday of Nobel Prize-winning scientist Baruch Blumberg, who discovered the hepatitis B virus — World Hepatitis Day raises awareness of viral hepatitis, a group of infectious diseases affecting the liver. Hepatitis B and C together affect over 325 million people worldwide and cause more than 1.1 million deaths annually, yet remain significantly underdiagnosed and undertreated. Safe, effective vaccines for hepatitis A and B exist; elimination is achievable.
National Milk Chocolate Day
Milk chocolate — chocolate combined with milk powder or condensed milk to produce a creamier, sweeter, less bitter confection — accounts for the vast majority of chocolate consumed worldwide. It was pioneered by Daniel Peter and Henri Nestlé in Switzerland in 1875, and later perfected by Milton Hershey, John Cadbury, and others into the global industry standard. National Milk Chocolate Day on July 28 is the most popular member of chocolate’s family getting its due.
World Nature Conservation Day / World Conservation Day
Observed on July 28, World Nature Conservation Day — also called World Conservation Day — raises awareness of the need to protect the planet’s natural resources, ecosystems, and biodiversity. From deforestation and ocean acidification to species extinction and freshwater depletion, the pressures on Earth’s natural systems are accelerating. The day calls on individuals, governments, and organisations to take meaningful action toward conservation and sustainability.
National Waterpark Day
National Waterpark Day on July 28 celebrates the quintessential summer attraction — the waterpark, with its slides, lazy rivers, wave pools, and the communal joy of getting extremely wet in an organised fashion. The US is home to over 1,000 waterparks drawing more than 85 million visits annually, making it one of the country’s most popular summer leisure industries. July 28 falls squarely in peak season.
Here’s every observance celebrated on July 28, 2026.
National & International Days on July 28
Whether you’re eating milk chocolate, visiting a waterpark, playing soccer, learning about hepatitis, or pledging to do more for nature conservation, here’s the story behind each of these July 28 celebrations.
National Milk Chocolate Day
National Milk Chocolate Day celebrates one of the most beloved types of chocolate. Unlike dark chocolate (celebrated on February 1), milk chocolate includes dairy ingredients that create a smoother and sweeter flavor. The first milk chocolate bar was created in 1875 by Swiss chocolatier Daniel Peter, who combined chocolate liquor with a powdered milk developed by Henri Nestlé. This day was established by the National Confectioners Association to highlight milk chocolate’s place in confectionery history and everyday indulgence.
National Soccer Day
National Soccer Day recognizes the global impact of the world’s most popular sport. Known internationally as football, soccer is played in over 200 countries by hundreds of millions of people. Although the game has ancient roots, modern soccer as we know it began to take shape in England. The term “soccer” was coined in the 1880s to distinguish it from other forms of football. Despite attempts to ban the sport in the past, it remained deeply embedded in popular culture and is now celebrated in stadiums, parks, and backyards worldwide.
National Waterpark Day
National Waterpark Day was created in 2017 by Kalahari Resorts and Conventions to honor the excitement and joy that waterparks bring to people of all ages. The day encourages families to make summer memories while enjoying slides, lazy rivers, and wave pools. Kalahari Resorts, which opened its first waterpark in Wisconsin Dells in 2000, now operates some of the largest indoor waterparks in the United States. With expanding locations and year-round attractions, waterparks have become a go-to summer experience for both fun and relaxation.
World Hepatitis Day
World Hepatitis Day is observed each year on July 28 to raise global awareness about hepatitis, a group of infectious diseases that affect the liver. There are five main types—A, B, C, D, and E—each with different transmission methods and health impacts. Chronic hepatitis, especially types B and C, can lead to serious complications like liver cancer. The date commemorates the birth of Dr. Baruch Samuel Blumberg, who discovered the hepatitis B virus and won the Nobel Prize for his work. The day calls for greater prevention, testing, and treatment efforts worldwide.
World Nature Conservation Day
World Nature Conservation Day brings attention to the urgent need to protect the planet’s natural resources. First promoted in India by the Environmental Information System (ENVIS) and supported by the Ministry of Environment, Forests, and Climate Change, this day emphasizes the importance of conserving air, water, soil, minerals, and biodiversity. As the global population grows, the strain on ecosystems increases. World Nature Conservation Day encourages simple, everyday actions—like conserving water, reducing waste, and planting trees—to help preserve a livable world for future generations.
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