What is World Down Syndrome Day called in Croatian with how to pronounce and transliteration in English?

English to Croatian

• Mother's Day Majcin dan
• World Malaria Day
• World No-Tobacco Day Svjetski dan nepušenja
• Darwin Day
• International Day of Charity
• International Day of Happiness
• April Fools' Day Prvotravanjska šala
• Teacher’s Day
• International Day of Persons with Disabilities Međunarodni dan osoba s invaliditetom
• International Mother Earth Day Majka Međunarodni Dan planeta Zemlje