May hosts 195 national days and holidays on Calendar.cx. International Workers' Day (May 1) and Star Wars Day (May 4) lead the month's most recognized events. Healthcare gets two major observances: National Nurses Day (May 6) and International Nurses Day (May 12). International Firefighters Day is also May 4. Other highlights include National Shrimp Day (May 10), World Goth Day (May 22), and Mother's Day on the second Sunday. May marks the peak of spring in the Northern Hemisphere, and its mix of awareness days, food holidays, and pop-culture celebrations makes it one of the year's most diverse months.