International Day of Light
Celebrate the International Day of Light on May 16, recognizing the essential role of light in science, culture, and sustainable development.
Saturday
What holiday is on May 16?
27 holidays and observances fall on May 16.
World Whisky Day
World Whisky Day is observed on the third Saturday of May to enjoy whisky and tasting traditions.
Drawing Day
Drawing Day is observed on May 16 to celebrate sketching, doodling, and creative expression.
International Boys’ Day
International Boys’ Day is observed on May 16 to support boys’ well-being and mentoring.
International Day of Living Together in Peace
International Day of Living Together in Peace is observed on May 16 to promote peace and inclusion.
World Fiddle Day
World Fiddle Day is observed on the third Saturday of May to honor fiddle music and traditions.
World Orienteering Day
World Orienteering Day begins on the third Saturday of May to promote map-based outdoor navigation.
Whit Sunday (Pentecost Sunday)
Whit Sunday is observed 50 days after Easter to remember Pentecost and the coming of the Holy Spirit.
Culture Freedom Day
Culture Freedom Day is observed on the third Saturday of May to support free culture, open licensing, and shared creativity.
National Armed Forces Day
National Armed Forces Day is a U.S. observance held on the third Saturday in May.
National Barbecue Day
Happy National Barbecue Day! It's time to celebrate America's delicious grilled cuisine.
National Mimosa Day
Celebrate National Mimosa Day on May 16 by enjoying this classic brunch cocktail and exploring creative variations with friends and family.
Plant a Lemon Tree Day
Celebrate Plant a Lemon Tree Day by planting a lemon tree to promote sustainability, health, and community engagement.
National Love a Tree Day
National Love a Tree Day is observed on May 16 to appreciate trees, tree care, shade, wildlife habitat, and green spaces.
National Piercing Day
National Piercing Day is observed on May 16 to recognize piercings, body jewelry, and safe self-expression.
National Wear Purple for Peace Day
National Wear Purple for Peace Day is observed on May 16 to wear purple for peace and goodwill.
National Do Something Good for Your Neighbor Day
National Do Something Good for Your Neighbor Day is observed on May 16 to honor kindness, helpful deeds, and neighborly care.
National Honor Our LGBT Elders Day
National Honor Our LGBT Elders Day is observed on May 16 to honor LGBT elders, their stories, and community contributions.
National Learn to Swim Day
National Learn to Swim Day is observed on the third Saturday in May for swim skills and water safety.
Nickel Day
Nickel Day is observed on May 16 to explore nickel as a metal, coin, and useful material in everyday objects.
National Sea Monkey Day
National Sea Monkey Day is observed on May 16 to enjoy Sea-Monkeys, brine shrimp, nostalgia, and simple science.
National Coquilles Saint Jacques Day
National Coquilles Saint Jacques Day is observed on May 16 to enjoy a classic French scallop dish with rich sauce.
National Biographer's Day
National Biographer's Day is observed on May 16 to honor biographers, biography, and the craft of writing real lives.
Preakness Stakes
Preakness Stakes is held on the third Saturday of May as a major Triple Crown horse race.
National River Cleanup Day
National River Cleanup Day is observed on the third Saturday in May to clean rivers, creeks, watersheds, and local habitats.
Middlesex Day in England
Middlesex Day in England is observed on May 16 to honor historic county identity and the Battle of Albuera connection.
Waiters Day
Waiters Day is observed on May 16 to recognize front-of-house hospitality workers.
Coming up next
World Hypertension Day
World Hypertension Day raises awareness about high blood pressure, promoting prevention and control to reduce the risk of cardiovascular diseases.
World Baking Day
Celebrate World Baking Day by embracing the joy of baking and sharing your creations with loved ones.
International Child Helpline Day
International Child Helpline Day raises awareness about the vital role of child helplines in providing support and protection to children worldwide.
International Day Against Homophobia Transphobia and Biphobia
IDAHOBIT is observed on May 17 to raise awareness of anti-LGBTQIA+ discrimination.
International AIDS Candlelight Memorial
International AIDS Candlelight Memorial is observed on the third Sunday of May to remember AIDS losses and support HIV awareness.
World Information Society Day
World Information Society Day is observed on May 17 to focus on digital access, communication, and the information society.
Neurofibromatosis Awareness Day
Neurofibromatosis Awareness Day is observed on May 17 to raise awareness of NF, patient support, and research.
Pinot Grigio Day
Pinot Grigio Day is observed on May 17 to appreciate the crisp white wine, food pairings, and responsible tasting.
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