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Today is: April 21
Scroll to explore events active on this date.
For the current year, this month includes: 620 events.
Events In May 2025
Database of events, awareness days, holidays, and promotions occurring in May of this year.
May Events
Sivan (J): May 27 - June 25
Monthly
Sivan is a late spring or early summer month in the Hebrew calendar, and it is the ninth month of the civil year and the third month of the ecclesiastical year. The main holiday during this month, celeb...
May
Skin Cancer Detection and Prevention Month...
Monthly
Skin cancer affects people of all ages. One in five Americans will develop skin cancer over a lifetime; 13 million Americans live with a history of non-melanoma skin cancer, and nearly 800,000 Americans l...
May
Sleep Month, Better: May
Monthly
Better Sleep Month is sponsored by the Better Sleep Council, a non-profit set up by the Mattress Industry. It seeks to assist people in getting a good night's sleep with tips, facts, and research. Sleep...
May
Slider Day, Ntl: May 15
Daily
National Slider Day celebrates the two-inch circumference mini sandwich invented by White Castle nearly a century ago. Typically a slider is a small hamburger, but it can be any type of round-roll mini sa...
May
Slugs Return from Capistrano Day: May 28
Daily
Here is one of those curious holidays created by Thomas and Ruth Roy from Wellcat Holidays & Herbs—Slugs Return from Capistrano Day. In typical Wellcat fashion, this day is a parody of the Swallows Retu...
May
Smile Month, Ntl. (UK): May 15-June 15
Monthly
National Smile Month is the United Kingdom’s longest-running oral health campaign. Together with thousands of individuals and organizations, National Smile Month promotes three key messages: 1) Brush yo...
May
Solidarity with Peoples of Non-Self-Govern...
Weekly
The United Nations General Assembly champions The Week of Solidarity with Peoples of Non-Self-Governing Territories. This annual awareness campaign calls attention to the plight of people who lack self-...
May
Sorry Day—Apology Day, Ntl. (AU)(1997): Ma...
Daily
National Sorry Day marks and remembers the mistreatment of Australia’s aboriginal people by the crown and government throughout history. May 26, 1997, is the anniversary of the delivery of the report “Br...
May
Space Day: May 3
Daily
INSPIRING THE NEXT GENERATION OF SPACE EXPLORATION: NATIONAL SPACE DAY Space Day celebrates the achievements of Earth's space exploration programs and raises awareness of the program's benefits and oppor...
May
Speak in Full Sentences Day—No Texting Day...
Daily
Speak in Full Sentences Day, or No Texting Day urges people to communicate properly. Whether speaking or writing, try to use language as intended and refrain from using abbreviations, emojis, and other sh...
May
Specially-abled Pets Day, Ntl.: May 3
Daily
The National Specially-abled Pets Day began with the animal advocate, author, and pet expert Colleen Paige to educate people about caring for disabled pets. On this day, animal-loving organizations and pe...
May
Spinal Health Week (AU): May 19-25 (est)
Weekly
Spinal Health Week in Australia seeks to raise awareness of severe spine issues and how best to prevent and treat them. With so many of us spending most of our time sitting at desks, spine problems are...
May
Spiritual Literacy Month: May
Monthly
Spiritual Literacy Month celebrates the common meeting point of all faiths: charity, tolerance, and belief. It's a month to explore faith and learn about the shared spirituality of humanity, annually in M...
May
Star Wars Day: May 4
Daily
Star Wars Day is a play on words from the famous film series that premiered in 1977. "May the Fourth be with you" is derived from the classic saying in the film "May the Force be with you." It's a day w...
May
Starlight Day (AU): May 2
Daily
Starlight Day in Australia is a national fundraising initiative of the Starlight Children’s Foundation. Starlight provides services to seriously ill children that help them enjoy life and forget about the...
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